Subject: [PATCH 71/71] mm: drop PAGE_CACHE_* and page_cache_{get,release} definition

PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time ago
with promise that one day it will be possible to implement page cache with
bigger chunks than PAGE_SIZE.

This promise never materialized. And unlikely will.

We have many places where PAGE_CACHE_SIZE assumed to be equal to
PAGE_SIZE. And it's constant source of confusion on whether PAGE_CACHE_*
or PAGE_* constant should be used in a particular case, especially on the
border between fs and mm.

Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much
breakage to be doable.

Let's stop pretending that pages in page cache are special. They are not.

The changes are pretty straight-forward:

- <foo> << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>;

- PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN};

- page_cache_get() -> get_page();

- page_cache_release() -> put_page();

Signed-off-by: Kirill A. Shutemov <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Josef Bacik <[email protected]>
Cc: David Sterba <[email protected]>
---
fs/btrfs/check-integrity.c | 64 +++++-----
fs/btrfs/compression.c | 84 ++++++------
fs/btrfs/ctree.c | 8 +-
fs/btrfs/disk-io.c | 14 +-
fs/btrfs/extent-tree.c | 4 +-
fs/btrfs/extent_io.c | 262 +++++++++++++++++++-------------------
fs/btrfs/extent_io.h | 6 +-
fs/btrfs/file-item.c | 4 +-
fs/btrfs/file.c | 62 ++++-----
fs/btrfs/free-space-cache.c | 30 ++---
fs/btrfs/inode-map.c | 10 +-
fs/btrfs/inode.c | 120 ++++++++---------
fs/btrfs/ioctl.c | 82 ++++++------
fs/btrfs/lzo.c | 32 ++---
fs/btrfs/raid56.c | 28 ++--
fs/btrfs/reada.c | 30 ++---
fs/btrfs/relocation.c | 16 +--
fs/btrfs/scrub.c | 24 ++--
fs/btrfs/send.c | 16 +--
fs/btrfs/struct-funcs.c | 4 +-
fs/btrfs/tests/extent-io-tests.c | 44 +++----
fs/btrfs/tests/free-space-tests.c | 2 +-
fs/btrfs/volumes.c | 14 +-
fs/btrfs/zlib.c | 38 +++---
24 files changed, 499 insertions(+), 499 deletions(-)

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 861d472564c1..e17b46805aa1 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -755,7 +755,7 @@ static int btrfsic_process_superblock(struct btrfsic_state *state,
BUG_ON(NULL == l);

ret = btrfsic_read_block(state, &tmp_next_block_ctx);
- if (ret < (int)PAGE_CACHE_SIZE) {
+ if (ret < (int)PAGE_SIZE) {
printk(KERN_INFO
"btrfsic: read @logical %llu failed!\n",
tmp_next_block_ctx.start);
@@ -1229,15 +1229,15 @@ static void btrfsic_read_from_block_data(
size_t offset_in_page;
char *kaddr;
char *dst = (char *)dstv;
- size_t start_offset = block_ctx->start & ((u64)PAGE_CACHE_SIZE - 1);
- unsigned long i = (start_offset + offset) >> PAGE_CACHE_SHIFT;
+ size_t start_offset = block_ctx->start & ((u64)PAGE_SIZE - 1);
+ unsigned long i = (start_offset + offset) >> PAGE_SHIFT;

WARN_ON(offset + len > block_ctx->len);
- offset_in_page = (start_offset + offset) & (PAGE_CACHE_SIZE - 1);
+ offset_in_page = (start_offset + offset) & (PAGE_SIZE - 1);

while (len > 0) {
- cur = min(len, ((size_t)PAGE_CACHE_SIZE - offset_in_page));
- BUG_ON(i >= DIV_ROUND_UP(block_ctx->len, PAGE_CACHE_SIZE));
+ cur = min(len, ((size_t)PAGE_SIZE - offset_in_page));
+ BUG_ON(i >= DIV_ROUND_UP(block_ctx->len, PAGE_SIZE));
kaddr = block_ctx->datav[i];
memcpy(dst, kaddr + offset_in_page, cur);

@@ -1603,8 +1603,8 @@ static void btrfsic_release_block_ctx(struct btrfsic_block_data_ctx *block_ctx)

BUG_ON(!block_ctx->datav);
BUG_ON(!block_ctx->pagev);
- num_pages = (block_ctx->len + (u64)PAGE_CACHE_SIZE - 1) >>
- PAGE_CACHE_SHIFT;
+ num_pages = (block_ctx->len + (u64)PAGE_SIZE - 1) >>
+ PAGE_SHIFT;
while (num_pages > 0) {
num_pages--;
if (block_ctx->datav[num_pages]) {
@@ -1635,15 +1635,15 @@ static int btrfsic_read_block(struct btrfsic_state *state,
BUG_ON(block_ctx->datav);
BUG_ON(block_ctx->pagev);
BUG_ON(block_ctx->mem_to_free);
- if (block_ctx->dev_bytenr & ((u64)PAGE_CACHE_SIZE - 1)) {
+ if (block_ctx->dev_bytenr & ((u64)PAGE_SIZE - 1)) {
printk(KERN_INFO
"btrfsic: read_block() with unaligned bytenr %llu\n",
block_ctx->dev_bytenr);
return -1;
}

- num_pages = (block_ctx->len + (u64)PAGE_CACHE_SIZE - 1) >>
- PAGE_CACHE_SHIFT;
+ num_pages = (block_ctx->len + (u64)PAGE_SIZE - 1) >>
+ PAGE_SHIFT;
block_ctx->mem_to_free = kzalloc((sizeof(*block_ctx->datav) +
sizeof(*block_ctx->pagev)) *
num_pages, GFP_NOFS);
@@ -1674,8 +1674,8 @@ static int btrfsic_read_block(struct btrfsic_state *state,

for (j = i; j < num_pages; j++) {
ret = bio_add_page(bio, block_ctx->pagev[j],
- PAGE_CACHE_SIZE, 0);
- if (PAGE_CACHE_SIZE != ret)
+ PAGE_SIZE, 0);
+ if (PAGE_SIZE != ret)
break;
}
if (j == i) {
@@ -1691,7 +1691,7 @@ static int btrfsic_read_block(struct btrfsic_state *state,
return -1;
}
bio_put(bio);
- dev_bytenr += (j - i) * PAGE_CACHE_SIZE;
+ dev_bytenr += (j - i) * PAGE_SIZE;
i = j;
}
for (i = 0; i < num_pages; i++) {
@@ -1767,9 +1767,9 @@ static int btrfsic_test_for_metadata(struct btrfsic_state *state,
u32 crc = ~(u32)0;
unsigned int i;

- if (num_pages * PAGE_CACHE_SIZE < state->metablock_size)
+ if (num_pages * PAGE_SIZE < state->metablock_size)
return 1; /* not metadata */
- num_pages = state->metablock_size >> PAGE_CACHE_SHIFT;
+ num_pages = state->metablock_size >> PAGE_SHIFT;
h = (struct btrfs_header *)datav[0];

if (memcmp(h->fsid, state->root->fs_info->fsid, BTRFS_UUID_SIZE))
@@ -1777,8 +1777,8 @@ static int btrfsic_test_for_metadata(struct btrfsic_state *state,

for (i = 0; i < num_pages; i++) {
u8 *data = i ? datav[i] : (datav[i] + BTRFS_CSUM_SIZE);
- size_t sublen = i ? PAGE_CACHE_SIZE :
- (PAGE_CACHE_SIZE - BTRFS_CSUM_SIZE);
+ size_t sublen = i ? PAGE_SIZE :
+ (PAGE_SIZE - BTRFS_CSUM_SIZE);

crc = btrfs_crc32c(crc, data, sublen);
}
@@ -1824,14 +1824,14 @@ again:
if (block->is_superblock) {
bytenr = btrfs_super_bytenr((struct btrfs_super_block *)
mapped_datav[0]);
- if (num_pages * PAGE_CACHE_SIZE <
+ if (num_pages * PAGE_SIZE <
BTRFS_SUPER_INFO_SIZE) {
printk(KERN_INFO
"btrfsic: cannot work with too short bios!\n");
return;
}
is_metadata = 1;
- BUG_ON(BTRFS_SUPER_INFO_SIZE & (PAGE_CACHE_SIZE - 1));
+ BUG_ON(BTRFS_SUPER_INFO_SIZE & (PAGE_SIZE - 1));
processed_len = BTRFS_SUPER_INFO_SIZE;
if (state->print_mask &
BTRFSIC_PRINT_MASK_TREE_BEFORE_SB_WRITE) {
@@ -1842,7 +1842,7 @@ again:
}
if (is_metadata) {
if (!block->is_superblock) {
- if (num_pages * PAGE_CACHE_SIZE <
+ if (num_pages * PAGE_SIZE <
state->metablock_size) {
printk(KERN_INFO
"btrfsic: cannot work with too short bios!\n");
@@ -1878,7 +1878,7 @@ again:
}
block->logical_bytenr = bytenr;
} else {
- if (num_pages * PAGE_CACHE_SIZE <
+ if (num_pages * PAGE_SIZE <
state->datablock_size) {
printk(KERN_INFO
"btrfsic: cannot work with too short bios!\n");
@@ -2011,7 +2011,7 @@ again:
block->logical_bytenr = bytenr;
block->is_metadata = 1;
if (block->is_superblock) {
- BUG_ON(PAGE_CACHE_SIZE !=
+ BUG_ON(PAGE_SIZE !=
BTRFS_SUPER_INFO_SIZE);
ret = btrfsic_process_written_superblock(
state,
@@ -2170,8 +2170,8 @@ again:
continue_loop:
BUG_ON(!processed_len);
dev_bytenr += processed_len;
- mapped_datav += processed_len >> PAGE_CACHE_SHIFT;
- num_pages -= processed_len >> PAGE_CACHE_SHIFT;
+ mapped_datav += processed_len >> PAGE_SHIFT;
+ num_pages -= processed_len >> PAGE_SHIFT;
goto again;
}

@@ -2952,7 +2952,7 @@ static void __btrfsic_submit_bio(int rw, struct bio *bio)
goto leave;
cur_bytenr = dev_bytenr;
for (i = 0; i < bio->bi_vcnt; i++) {
- BUG_ON(bio->bi_io_vec[i].bv_len != PAGE_CACHE_SIZE);
+ BUG_ON(bio->bi_io_vec[i].bv_len != PAGE_SIZE);
mapped_datav[i] = kmap(bio->bi_io_vec[i].bv_page);
if (!mapped_datav[i]) {
while (i > 0) {
@@ -3035,16 +3035,16 @@ int btrfsic_mount(struct btrfs_root *root,
struct list_head *dev_head = &fs_devices->devices;
struct btrfs_device *device;

- if (root->nodesize & ((u64)PAGE_CACHE_SIZE - 1)) {
+ if (root->nodesize & ((u64)PAGE_SIZE - 1)) {
printk(KERN_INFO
- "btrfsic: cannot handle nodesize %d not being a multiple of PAGE_CACHE_SIZE %ld!\n",
- root->nodesize, PAGE_CACHE_SIZE);
+ "btrfsic: cannot handle nodesize %d not being a multiple of PAGE_SIZE %ld!\n",
+ root->nodesize, PAGE_SIZE);
return -1;
}
- if (root->sectorsize & ((u64)PAGE_CACHE_SIZE - 1)) {
+ if (root->sectorsize & ((u64)PAGE_SIZE - 1)) {
printk(KERN_INFO
- "btrfsic: cannot handle sectorsize %d not being a multiple of PAGE_CACHE_SIZE %ld!\n",
- root->sectorsize, PAGE_CACHE_SIZE);
+ "btrfsic: cannot handle sectorsize %d not being a multiple of PAGE_SIZE %ld!\n",
+ root->sectorsize, PAGE_SIZE);
return -1;
}
state = kzalloc(sizeof(*state), GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 3346cd8f9910..ff61a41ac90b 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -119,7 +119,7 @@ static int check_compressed_csum(struct inode *inode,
csum = ~(u32)0;

kaddr = kmap_atomic(page);
- csum = btrfs_csum_data(kaddr, csum, PAGE_CACHE_SIZE);
+ csum = btrfs_csum_data(kaddr, csum, PAGE_SIZE);
btrfs_csum_final(csum, (char *)&csum);
kunmap_atomic(kaddr);

@@ -190,7 +190,7 @@ csum_failed:
for (index = 0; index < cb->nr_pages; index++) {
page = cb->compressed_pages[index];
page->mapping = NULL;
- page_cache_release(page);
+ put_page(page);
}

/* do io completion on the original bio */
@@ -224,8 +224,8 @@ out:
static noinline void end_compressed_writeback(struct inode *inode,
const struct compressed_bio *cb)
{
- unsigned long index = cb->start >> PAGE_CACHE_SHIFT;
- unsigned long end_index = (cb->start + cb->len - 1) >> PAGE_CACHE_SHIFT;
+ unsigned long index = cb->start >> PAGE_SHIFT;
+ unsigned long end_index = (cb->start + cb->len - 1) >> PAGE_SHIFT;
struct page *pages[16];
unsigned long nr_pages = end_index - index + 1;
int i;
@@ -247,7 +247,7 @@ static noinline void end_compressed_writeback(struct inode *inode,
if (cb->errors)
SetPageError(pages[i]);
end_page_writeback(pages[i]);
- page_cache_release(pages[i]);
+ put_page(pages[i]);
}
nr_pages -= ret;
index += ret;
@@ -304,7 +304,7 @@ static void end_compressed_bio_write(struct bio *bio)
for (index = 0; index < cb->nr_pages; index++) {
page = cb->compressed_pages[index];
page->mapping = NULL;
- page_cache_release(page);
+ put_page(page);
}

/* finally free the cb struct */
@@ -341,7 +341,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
int ret;
int skip_sum = BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM;

- WARN_ON(start & ((u64)PAGE_CACHE_SIZE - 1));
+ WARN_ON(start & ((u64)PAGE_SIZE - 1));
cb = kmalloc(compressed_bio_size(root, compressed_len), GFP_NOFS);
if (!cb)
return -ENOMEM;
@@ -374,14 +374,14 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
page->mapping = inode->i_mapping;
if (bio->bi_iter.bi_size)
ret = io_tree->ops->merge_bio_hook(WRITE, page, 0,
- PAGE_CACHE_SIZE,
+ PAGE_SIZE,
bio, 0);
else
ret = 0;

page->mapping = NULL;
- if (ret || bio_add_page(bio, page, PAGE_CACHE_SIZE, 0) <
- PAGE_CACHE_SIZE) {
+ if (ret || bio_add_page(bio, page, PAGE_SIZE, 0) <
+ PAGE_SIZE) {
bio_get(bio);

/*
@@ -410,15 +410,15 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
BUG_ON(!bio);
bio->bi_private = cb;
bio->bi_end_io = end_compressed_bio_write;
- bio_add_page(bio, page, PAGE_CACHE_SIZE, 0);
+ bio_add_page(bio, page, PAGE_SIZE, 0);
}
- if (bytes_left < PAGE_CACHE_SIZE) {
+ if (bytes_left < PAGE_SIZE) {
btrfs_info(BTRFS_I(inode)->root->fs_info,
"bytes left %lu compress len %lu nr %lu",
bytes_left, cb->compressed_len, cb->nr_pages);
}
- bytes_left -= PAGE_CACHE_SIZE;
- first_byte += PAGE_CACHE_SIZE;
+ bytes_left -= PAGE_SIZE;
+ first_byte += PAGE_SIZE;
cond_resched();
}
bio_get(bio);
@@ -457,17 +457,17 @@ static noinline int add_ra_bio_pages(struct inode *inode,
int misses = 0;

page = cb->orig_bio->bi_io_vec[cb->orig_bio->bi_vcnt - 1].bv_page;
- last_offset = (page_offset(page) + PAGE_CACHE_SIZE);
+ last_offset = (page_offset(page) + PAGE_SIZE);
em_tree = &BTRFS_I(inode)->extent_tree;
tree = &BTRFS_I(inode)->io_tree;

if (isize == 0)
return 0;

- end_index = (i_size_read(inode) - 1) >> PAGE_CACHE_SHIFT;
+ end_index = (i_size_read(inode) - 1) >> PAGE_SHIFT;

while (last_offset < compressed_end) {
- pg_index = last_offset >> PAGE_CACHE_SHIFT;
+ pg_index = last_offset >> PAGE_SHIFT;

if (pg_index > end_index)
break;
@@ -488,11 +488,11 @@ static noinline int add_ra_bio_pages(struct inode *inode,
break;

if (add_to_page_cache_lru(page, mapping, pg_index, GFP_NOFS)) {
- page_cache_release(page);
+ put_page(page);
goto next;
}

- end = last_offset + PAGE_CACHE_SIZE - 1;
+ end = last_offset + PAGE_SIZE - 1;
/*
* at this point, we have a locked page in the page cache
* for these bytes in the file. But, we have to make
@@ -502,27 +502,27 @@ static noinline int add_ra_bio_pages(struct inode *inode,
lock_extent(tree, last_offset, end);
read_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, last_offset,
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);
read_unlock(&em_tree->lock);

if (!em || last_offset < em->start ||
- (last_offset + PAGE_CACHE_SIZE > extent_map_end(em)) ||
+ (last_offset + PAGE_SIZE > extent_map_end(em)) ||
(em->block_start >> 9) != cb->orig_bio->bi_iter.bi_sector) {
free_extent_map(em);
unlock_extent(tree, last_offset, end);
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
break;
}
free_extent_map(em);

if (page->index == end_index) {
char *userpage;
- size_t zero_offset = isize & (PAGE_CACHE_SIZE - 1);
+ size_t zero_offset = isize & (PAGE_SIZE - 1);

if (zero_offset) {
int zeros;
- zeros = PAGE_CACHE_SIZE - zero_offset;
+ zeros = PAGE_SIZE - zero_offset;
userpage = kmap_atomic(page);
memset(userpage + zero_offset, 0, zeros);
flush_dcache_page(page);
@@ -531,19 +531,19 @@ static noinline int add_ra_bio_pages(struct inode *inode,
}

ret = bio_add_page(cb->orig_bio, page,
- PAGE_CACHE_SIZE, 0);
+ PAGE_SIZE, 0);

- if (ret == PAGE_CACHE_SIZE) {
+ if (ret == PAGE_SIZE) {
nr_pages++;
- page_cache_release(page);
+ put_page(page);
} else {
unlock_extent(tree, last_offset, end);
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
break;
}
next:
- last_offset += PAGE_CACHE_SIZE;
+ last_offset += PAGE_SIZE;
}
return 0;
}
@@ -567,7 +567,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
struct extent_map_tree *em_tree;
struct compressed_bio *cb;
struct btrfs_root *root = BTRFS_I(inode)->root;
- unsigned long uncompressed_len = bio->bi_vcnt * PAGE_CACHE_SIZE;
+ unsigned long uncompressed_len = bio->bi_vcnt * PAGE_SIZE;
unsigned long compressed_len;
unsigned long nr_pages;
unsigned long pg_index;
@@ -589,7 +589,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
read_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree,
page_offset(bio->bi_io_vec->bv_page),
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);
read_unlock(&em_tree->lock);
if (!em)
return -EIO;
@@ -617,7 +617,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
cb->compress_type = extent_compress_type(bio_flags);
cb->orig_bio = bio;

- nr_pages = DIV_ROUND_UP(compressed_len, PAGE_CACHE_SIZE);
+ nr_pages = DIV_ROUND_UP(compressed_len, PAGE_SIZE);
cb->compressed_pages = kcalloc(nr_pages, sizeof(struct page *),
GFP_NOFS);
if (!cb->compressed_pages)
@@ -640,7 +640,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
add_ra_bio_pages(inode, em_start + em_len, cb);

/* include any pages we added in add_ra-bio_pages */
- uncompressed_len = bio->bi_vcnt * PAGE_CACHE_SIZE;
+ uncompressed_len = bio->bi_vcnt * PAGE_SIZE;
cb->len = uncompressed_len;

comp_bio = compressed_bio_alloc(bdev, cur_disk_byte, GFP_NOFS);
@@ -653,18 +653,18 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
for (pg_index = 0; pg_index < nr_pages; pg_index++) {
page = cb->compressed_pages[pg_index];
page->mapping = inode->i_mapping;
- page->index = em_start >> PAGE_CACHE_SHIFT;
+ page->index = em_start >> PAGE_SHIFT;

if (comp_bio->bi_iter.bi_size)
ret = tree->ops->merge_bio_hook(READ, page, 0,
- PAGE_CACHE_SIZE,
+ PAGE_SIZE,
comp_bio, 0);
else
ret = 0;

page->mapping = NULL;
- if (ret || bio_add_page(comp_bio, page, PAGE_CACHE_SIZE, 0) <
- PAGE_CACHE_SIZE) {
+ if (ret || bio_add_page(comp_bio, page, PAGE_SIZE, 0) <
+ PAGE_SIZE) {
bio_get(comp_bio);

ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio,
@@ -702,9 +702,9 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
comp_bio->bi_private = cb;
comp_bio->bi_end_io = end_compressed_bio_read;

- bio_add_page(comp_bio, page, PAGE_CACHE_SIZE, 0);
+ bio_add_page(comp_bio, page, PAGE_SIZE, 0);
}
- cur_disk_byte += PAGE_CACHE_SIZE;
+ cur_disk_byte += PAGE_SIZE;
}
bio_get(comp_bio);

@@ -1013,8 +1013,8 @@ int btrfs_decompress_buf2page(char *buf, unsigned long buf_start,

/* copy bytes from the working buffer into the pages */
while (working_bytes > 0) {
- bytes = min(PAGE_CACHE_SIZE - *pg_offset,
- PAGE_CACHE_SIZE - buf_offset);
+ bytes = min(PAGE_SIZE - *pg_offset,
+ PAGE_SIZE - buf_offset);
bytes = min(bytes, working_bytes);
kaddr = kmap_atomic(page_out);
memcpy(kaddr + *pg_offset, buf + buf_offset, bytes);
@@ -1027,7 +1027,7 @@ int btrfs_decompress_buf2page(char *buf, unsigned long buf_start,
current_buf_start += bytes;

/* check if we need to pick another page */
- if (*pg_offset == PAGE_CACHE_SIZE) {
+ if (*pg_offset == PAGE_SIZE) {
(*pg_index)++;
if (*pg_index >= vcnt)
return 0;
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 769e0ff1b4ce..1ef1c40d70f4 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -523,7 +523,7 @@ alloc_tree_mod_elem(struct extent_buffer *eb, int slot,
if (!tm)
return NULL;

- tm->index = eb->start >> PAGE_CACHE_SHIFT;
+ tm->index = eb->start >> PAGE_SHIFT;
if (op != MOD_LOG_KEY_ADD) {
btrfs_node_key(eb, &tm->key, slot);
tm->blockptr = btrfs_node_blockptr(eb, slot);
@@ -588,7 +588,7 @@ tree_mod_log_insert_move(struct btrfs_fs_info *fs_info,
goto free_tms;
}

- tm->index = eb->start >> PAGE_CACHE_SHIFT;
+ tm->index = eb->start >> PAGE_SHIFT;
tm->slot = src_slot;
tm->move.dst_slot = dst_slot;
tm->move.nr_items = nr_items;
@@ -699,7 +699,7 @@ tree_mod_log_insert_root(struct btrfs_fs_info *fs_info,
goto free_tms;
}

- tm->index = new_root->start >> PAGE_CACHE_SHIFT;
+ tm->index = new_root->start >> PAGE_SHIFT;
tm->old_root.logical = old_root->start;
tm->old_root.level = btrfs_header_level(old_root);
tm->generation = btrfs_header_generation(old_root);
@@ -739,7 +739,7 @@ __tree_mod_log_search(struct btrfs_fs_info *fs_info, u64 start, u64 min_seq,
struct rb_node *node;
struct tree_mod_elem *cur = NULL;
struct tree_mod_elem *found = NULL;
- u64 index = start >> PAGE_CACHE_SHIFT;
+ u64 index = start >> PAGE_SHIFT;

tree_mod_log_read_lock(fs_info);
tm_root = &fs_info->tree_mod_log;
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 5699bbc23feb..20ce055700f5 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1055,7 +1055,7 @@ static void btree_invalidatepage(struct page *page, unsigned int offset,
(unsigned long long)page_offset(page));
ClearPagePrivate(page);
set_page_private(page, 0);
- page_cache_release(page);
+ put_page(page);
}
}

@@ -1756,7 +1756,7 @@ static int setup_bdi(struct btrfs_fs_info *info, struct backing_dev_info *bdi)
if (err)
return err;

- bdi->ra_pages = VM_MAX_READAHEAD * 1024 / PAGE_CACHE_SIZE;
+ bdi->ra_pages = VM_MAX_READAHEAD * 1024 / PAGE_SIZE;
bdi->congested_fn = btrfs_congested_fn;
bdi->congested_data = info;
bdi->capabilities |= BDI_CAP_CGROUP_WRITEBACK;
@@ -2534,7 +2534,7 @@ int open_ctree(struct super_block *sb,
err = ret;
goto fail_bdi;
}
- fs_info->dirty_metadata_batch = PAGE_CACHE_SIZE *
+ fs_info->dirty_metadata_batch = PAGE_SIZE *
(1 + ilog2(nr_cpu_ids));

ret = percpu_counter_init(&fs_info->delalloc_bytes, 0, GFP_KERNEL);
@@ -2778,7 +2778,7 @@ int open_ctree(struct super_block *sb,
* flag our filesystem as having big metadata blocks if
* they are bigger than the page size
*/
- if (btrfs_super_nodesize(disk_super) > PAGE_CACHE_SIZE) {
+ if (btrfs_super_nodesize(disk_super) > PAGE_SIZE) {
if (!(features & BTRFS_FEATURE_INCOMPAT_BIG_METADATA))
printk(KERN_INFO "BTRFS: flagging fs with big metadata feature\n");
features |= BTRFS_FEATURE_INCOMPAT_BIG_METADATA;
@@ -2828,7 +2828,7 @@ int open_ctree(struct super_block *sb,

fs_info->bdi.ra_pages *= btrfs_super_num_devices(disk_super);
fs_info->bdi.ra_pages = max(fs_info->bdi.ra_pages,
- SZ_4M / PAGE_CACHE_SIZE);
+ SZ_4M / PAGE_SIZE);

tree_root->nodesize = nodesize;
tree_root->sectorsize = sectorsize;
@@ -4060,9 +4060,9 @@ static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info,
ret = -EINVAL;
}
/* Only PAGE SIZE is supported yet */
- if (sectorsize != PAGE_CACHE_SIZE) {
+ if (sectorsize != PAGE_SIZE) {
printk(KERN_ERR "BTRFS: sectorsize %llu not supported yet, only support %lu\n",
- sectorsize, PAGE_CACHE_SIZE);
+ sectorsize, PAGE_SIZE);
ret = -EINVAL;
}
if (!is_power_of_2(nodesize) || nodesize < sectorsize ||
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index e2287c7c10be..e50a13ea4dd8 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3452,7 +3452,7 @@ again:
num_pages = 1;

num_pages *= 16;
- num_pages *= PAGE_CACHE_SIZE;
+ num_pages *= PAGE_SIZE;

ret = btrfs_check_data_free_space(inode, 0, num_pages);
if (ret)
@@ -4639,7 +4639,7 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
loops = 0;
while (delalloc_bytes && loops < 3) {
max_reclaim = min(delalloc_bytes, to_reclaim);
- nr_pages = max_reclaim >> PAGE_CACHE_SHIFT;
+ nr_pages = max_reclaim >> PAGE_SHIFT;
btrfs_writeback_inodes_sb_nr(root, nr_pages, items);
/*
* We need to wait for the async pages to actually start before
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 392592dc7010..b7608fa4ddc4 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1365,23 +1365,23 @@ int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end)

void extent_range_clear_dirty_for_io(struct inode *inode, u64 start, u64 end)
{
- unsigned long index = start >> PAGE_CACHE_SHIFT;
- unsigned long end_index = end >> PAGE_CACHE_SHIFT;
+ unsigned long index = start >> PAGE_SHIFT;
+ unsigned long end_index = end >> PAGE_SHIFT;
struct page *page;

while (index <= end_index) {
page = find_get_page(inode->i_mapping, index);
BUG_ON(!page); /* Pages should be in the extent_io_tree */
clear_page_dirty_for_io(page);
- page_cache_release(page);
+ put_page(page);
index++;
}
}

void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end)
{
- unsigned long index = start >> PAGE_CACHE_SHIFT;
- unsigned long end_index = end >> PAGE_CACHE_SHIFT;
+ unsigned long index = start >> PAGE_SHIFT;
+ unsigned long end_index = end >> PAGE_SHIFT;
struct page *page;

while (index <= end_index) {
@@ -1389,7 +1389,7 @@ void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end)
BUG_ON(!page); /* Pages should be in the extent_io_tree */
__set_page_dirty_nobuffers(page);
account_page_redirty(page);
- page_cache_release(page);
+ put_page(page);
index++;
}
}
@@ -1399,15 +1399,15 @@ void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end)
*/
static void set_range_writeback(struct extent_io_tree *tree, u64 start, u64 end)
{
- unsigned long index = start >> PAGE_CACHE_SHIFT;
- unsigned long end_index = end >> PAGE_CACHE_SHIFT;
+ unsigned long index = start >> PAGE_SHIFT;
+ unsigned long end_index = end >> PAGE_SHIFT;
struct page *page;

while (index <= end_index) {
page = find_get_page(tree->mapping, index);
BUG_ON(!page); /* Pages should be in the extent_io_tree */
set_page_writeback(page);
- page_cache_release(page);
+ put_page(page);
index++;
}
}
@@ -1558,8 +1558,8 @@ static noinline void __unlock_for_delalloc(struct inode *inode,
{
int ret;
struct page *pages[16];
- unsigned long index = start >> PAGE_CACHE_SHIFT;
- unsigned long end_index = end >> PAGE_CACHE_SHIFT;
+ unsigned long index = start >> PAGE_SHIFT;
+ unsigned long end_index = end >> PAGE_SHIFT;
unsigned long nr_pages = end_index - index + 1;
int i;

@@ -1573,7 +1573,7 @@ static noinline void __unlock_for_delalloc(struct inode *inode,
for (i = 0; i < ret; i++) {
if (pages[i] != locked_page)
unlock_page(pages[i]);
- page_cache_release(pages[i]);
+ put_page(pages[i]);
}
nr_pages -= ret;
index += ret;
@@ -1586,9 +1586,9 @@ static noinline int lock_delalloc_pages(struct inode *inode,
u64 delalloc_start,
u64 delalloc_end)
{
- unsigned long index = delalloc_start >> PAGE_CACHE_SHIFT;
+ unsigned long index = delalloc_start >> PAGE_SHIFT;
unsigned long start_index = index;
- unsigned long end_index = delalloc_end >> PAGE_CACHE_SHIFT;
+ unsigned long end_index = delalloc_end >> PAGE_SHIFT;
unsigned long pages_locked = 0;
struct page *pages[16];
unsigned long nrpages;
@@ -1621,11 +1621,11 @@ static noinline int lock_delalloc_pages(struct inode *inode,
pages[i]->mapping != inode->i_mapping) {
ret = -EAGAIN;
unlock_page(pages[i]);
- page_cache_release(pages[i]);
+ put_page(pages[i]);
goto done;
}
}
- page_cache_release(pages[i]);
+ put_page(pages[i]);
pages_locked++;
}
nrpages -= ret;
@@ -1638,7 +1638,7 @@ done:
__unlock_for_delalloc(inode, locked_page,
delalloc_start,
((u64)(start_index + pages_locked - 1)) <<
- PAGE_CACHE_SHIFT);
+ PAGE_SHIFT);
}
return ret;
}
@@ -1698,7 +1698,7 @@ again:
free_extent_state(cached_state);
cached_state = NULL;
if (!loops) {
- max_bytes = PAGE_CACHE_SIZE;
+ max_bytes = PAGE_SIZE;
loops = 1;
goto again;
} else {
@@ -1737,8 +1737,8 @@ void extent_clear_unlock_delalloc(struct inode *inode, u64 start, u64 end,
struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
int ret;
struct page *pages[16];
- unsigned long index = start >> PAGE_CACHE_SHIFT;
- unsigned long end_index = end >> PAGE_CACHE_SHIFT;
+ unsigned long index = start >> PAGE_SHIFT;
+ unsigned long end_index = end >> PAGE_SHIFT;
unsigned long nr_pages = end_index - index + 1;
int i;

@@ -1759,7 +1759,7 @@ void extent_clear_unlock_delalloc(struct inode *inode, u64 start, u64 end,
SetPagePrivate2(pages[i]);

if (pages[i] == locked_page) {
- page_cache_release(pages[i]);
+ put_page(pages[i]);
continue;
}
if (page_ops & PAGE_CLEAR_DIRTY)
@@ -1772,7 +1772,7 @@ void extent_clear_unlock_delalloc(struct inode *inode, u64 start, u64 end,
end_page_writeback(pages[i]);
if (page_ops & PAGE_UNLOCK)
unlock_page(pages[i]);
- page_cache_release(pages[i]);
+ put_page(pages[i]);
}
nr_pages -= ret;
index += ret;
@@ -1961,7 +1961,7 @@ int test_range_bit(struct extent_io_tree *tree, u64 start, u64 end,
static void check_page_uptodate(struct extent_io_tree *tree, struct page *page)
{
u64 start = page_offset(page);
- u64 end = start + PAGE_CACHE_SIZE - 1;
+ u64 end = start + PAGE_SIZE - 1;
if (test_range_bit(tree, start, end, EXTENT_UPTODATE, 1, NULL))
SetPageUptodate(page);
}
@@ -2071,11 +2071,11 @@ int repair_eb_io_failure(struct btrfs_root *root, struct extent_buffer *eb,
struct page *p = eb->pages[i];

ret = repair_io_failure(root->fs_info->btree_inode, start,
- PAGE_CACHE_SIZE, start, p,
+ PAGE_SIZE, start, p,
start - page_offset(p), mirror_num);
if (ret)
break;
- start += PAGE_CACHE_SIZE;
+ start += PAGE_SIZE;
}

return ret;
@@ -2471,8 +2471,8 @@ static void end_bio_extent_writepage(struct bio *bio)
* advance bv_offset and adjust bv_len to compensate.
* Print a warning for nonzero offsets, and an error
* if they don't add up to a full page. */
- if (bvec->bv_offset || bvec->bv_len != PAGE_CACHE_SIZE) {
- if (bvec->bv_offset + bvec->bv_len != PAGE_CACHE_SIZE)
+ if (bvec->bv_offset || bvec->bv_len != PAGE_SIZE) {
+ if (bvec->bv_offset + bvec->bv_len != PAGE_SIZE)
btrfs_err(BTRFS_I(page->mapping->host)->root->fs_info,
"partial page write in btrfs with offset %u and length %u",
bvec->bv_offset, bvec->bv_len);
@@ -2546,8 +2546,8 @@ static void end_bio_extent_readpage(struct bio *bio)
* advance bv_offset and adjust bv_len to compensate.
* Print a warning for nonzero offsets, and an error
* if they don't add up to a full page. */
- if (bvec->bv_offset || bvec->bv_len != PAGE_CACHE_SIZE) {
- if (bvec->bv_offset + bvec->bv_len != PAGE_CACHE_SIZE)
+ if (bvec->bv_offset || bvec->bv_len != PAGE_SIZE) {
+ if (bvec->bv_offset + bvec->bv_len != PAGE_SIZE)
btrfs_err(BTRFS_I(page->mapping->host)->root->fs_info,
"partial page read in btrfs with offset %u and length %u",
bvec->bv_offset, bvec->bv_len);
@@ -2603,13 +2603,13 @@ static void end_bio_extent_readpage(struct bio *bio)
readpage_ok:
if (likely(uptodate)) {
loff_t i_size = i_size_read(inode);
- pgoff_t end_index = i_size >> PAGE_CACHE_SHIFT;
+ pgoff_t end_index = i_size >> PAGE_SHIFT;
unsigned off;

/* Zero out the end if this page straddles i_size */
- off = i_size & (PAGE_CACHE_SIZE-1);
+ off = i_size & (PAGE_SIZE-1);
if (page->index == end_index && off)
- zero_user_segment(page, off, PAGE_CACHE_SIZE);
+ zero_user_segment(page, off, PAGE_SIZE);
SetPageUptodate(page);
} else {
ClearPageUptodate(page);
@@ -2773,7 +2773,7 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree,
struct bio *bio;
int contig = 0;
int old_compressed = prev_bio_flags & EXTENT_BIO_COMPRESSED;
- size_t page_size = min_t(size_t, size, PAGE_CACHE_SIZE);
+ size_t page_size = min_t(size_t, size, PAGE_SIZE);

if (bio_ret && *bio_ret) {
bio = *bio_ret;
@@ -2826,7 +2826,7 @@ static void attach_extent_buffer_page(struct extent_buffer *eb,
{
if (!PagePrivate(page)) {
SetPagePrivate(page);
- page_cache_get(page);
+ get_page(page);
set_page_private(page, (unsigned long)eb);
} else {
WARN_ON(page->private != (unsigned long)eb);
@@ -2837,7 +2837,7 @@ void set_page_extent_mapped(struct page *page)
{
if (!PagePrivate(page)) {
SetPagePrivate(page);
- page_cache_get(page);
+ get_page(page);
set_page_private(page, EXTENT_PAGE_PRIVATE);
}
}
@@ -2885,7 +2885,7 @@ static int __do_readpage(struct extent_io_tree *tree,
{
struct inode *inode = page->mapping->host;
u64 start = page_offset(page);
- u64 page_end = start + PAGE_CACHE_SIZE - 1;
+ u64 page_end = start + PAGE_SIZE - 1;
u64 end;
u64 cur = start;
u64 extent_offset;
@@ -2914,12 +2914,12 @@ static int __do_readpage(struct extent_io_tree *tree,
}
}

- if (page->index == last_byte >> PAGE_CACHE_SHIFT) {
+ if (page->index == last_byte >> PAGE_SHIFT) {
char *userpage;
- size_t zero_offset = last_byte & (PAGE_CACHE_SIZE - 1);
+ size_t zero_offset = last_byte & (PAGE_SIZE - 1);

if (zero_offset) {
- iosize = PAGE_CACHE_SIZE - zero_offset;
+ iosize = PAGE_SIZE - zero_offset;
userpage = kmap_atomic(page);
memset(userpage + zero_offset, 0, iosize);
flush_dcache_page(page);
@@ -2927,14 +2927,14 @@ static int __do_readpage(struct extent_io_tree *tree,
}
}
while (cur <= end) {
- unsigned long pnr = (last_byte >> PAGE_CACHE_SHIFT) + 1;
+ unsigned long pnr = (last_byte >> PAGE_SHIFT) + 1;
bool force_bio_submit = false;

if (cur >= last_byte) {
char *userpage;
struct extent_state *cached = NULL;

- iosize = PAGE_CACHE_SIZE - pg_offset;
+ iosize = PAGE_SIZE - pg_offset;
userpage = kmap_atomic(page);
memset(userpage + pg_offset, 0, iosize);
flush_dcache_page(page);
@@ -3117,7 +3117,7 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree,
for (index = 0; index < nr_pages; index++) {
__do_readpage(tree, pages[index], get_extent, em_cached, bio,
mirror_num, bio_flags, rw, prev_em_start);
- page_cache_release(pages[index]);
+ put_page(pages[index]);
}
}

@@ -3139,10 +3139,10 @@ static void __extent_readpages(struct extent_io_tree *tree,
page_start = page_offset(pages[index]);
if (!end) {
start = page_start;
- end = start + PAGE_CACHE_SIZE - 1;
+ end = start + PAGE_SIZE - 1;
first_index = index;
} else if (end + 1 == page_start) {
- end += PAGE_CACHE_SIZE;
+ end += PAGE_SIZE;
} else {
__do_contiguous_readpages(tree, &pages[first_index],
index - first_index, start,
@@ -3150,7 +3150,7 @@ static void __extent_readpages(struct extent_io_tree *tree,
bio, mirror_num, bio_flags,
rw, prev_em_start);
start = page_start;
- end = start + PAGE_CACHE_SIZE - 1;
+ end = start + PAGE_SIZE - 1;
first_index = index;
}
}
@@ -3172,7 +3172,7 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
struct inode *inode = page->mapping->host;
struct btrfs_ordered_extent *ordered;
u64 start = page_offset(page);
- u64 end = start + PAGE_CACHE_SIZE - 1;
+ u64 end = start + PAGE_SIZE - 1;
int ret;

while (1) {
@@ -3231,7 +3231,7 @@ static noinline_for_stack int writepage_delalloc(struct inode *inode,
unsigned long *nr_written)
{
struct extent_io_tree *tree = epd->tree;
- u64 page_end = delalloc_start + PAGE_CACHE_SIZE - 1;
+ u64 page_end = delalloc_start + PAGE_SIZE - 1;
u64 nr_delalloc;
u64 delalloc_to_write = 0;
u64 delalloc_end = 0;
@@ -3270,11 +3270,11 @@ static noinline_for_stack int writepage_delalloc(struct inode *inode,
/*
* delalloc_end is already one less than the total
* length, so we don't subtract one from
- * PAGE_CACHE_SIZE
+ * PAGE_SIZE
*/
delalloc_to_write += (delalloc_end - delalloc_start +
- PAGE_CACHE_SIZE) >>
- PAGE_CACHE_SHIFT;
+ PAGE_SIZE) >>
+ PAGE_SHIFT;
delalloc_start = delalloc_end + 1;
}
if (wbc->nr_to_write < delalloc_to_write) {
@@ -3323,7 +3323,7 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
{
struct extent_io_tree *tree = epd->tree;
u64 start = page_offset(page);
- u64 page_end = start + PAGE_CACHE_SIZE - 1;
+ u64 page_end = start + PAGE_SIZE - 1;
u64 end;
u64 cur = start;
u64 extent_offset;
@@ -3438,7 +3438,7 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
if (ret) {
SetPageError(page);
} else {
- unsigned long max_nr = (i_size >> PAGE_CACHE_SHIFT) + 1;
+ unsigned long max_nr = (i_size >> PAGE_SHIFT) + 1;

set_range_writeback(tree, cur, cur + iosize - 1);
if (!PageWriteback(page)) {
@@ -3481,12 +3481,12 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
struct inode *inode = page->mapping->host;
struct extent_page_data *epd = data;
u64 start = page_offset(page);
- u64 page_end = start + PAGE_CACHE_SIZE - 1;
+ u64 page_end = start + PAGE_SIZE - 1;
int ret;
int nr = 0;
size_t pg_offset = 0;
loff_t i_size = i_size_read(inode);
- unsigned long end_index = i_size >> PAGE_CACHE_SHIFT;
+ unsigned long end_index = i_size >> PAGE_SHIFT;
int write_flags;
unsigned long nr_written = 0;

@@ -3501,10 +3501,10 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,

ClearPageError(page);

- pg_offset = i_size & (PAGE_CACHE_SIZE - 1);
+ pg_offset = i_size & (PAGE_SIZE - 1);
if (page->index > end_index ||
(page->index == end_index && !pg_offset)) {
- page->mapping->a_ops->invalidatepage(page, 0, PAGE_CACHE_SIZE);
+ page->mapping->a_ops->invalidatepage(page, 0, PAGE_SIZE);
unlock_page(page);
return 0;
}
@@ -3514,7 +3514,7 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,

userpage = kmap_atomic(page);
memset(userpage + pg_offset, 0,
- PAGE_CACHE_SIZE - pg_offset);
+ PAGE_SIZE - pg_offset);
kunmap_atomic(userpage);
flush_dcache_page(page);
}
@@ -3752,7 +3752,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
clear_page_dirty_for_io(p);
set_page_writeback(p);
ret = submit_extent_page(rw, tree, wbc, p, offset >> 9,
- PAGE_CACHE_SIZE, 0, bdev, &epd->bio,
+ PAGE_SIZE, 0, bdev, &epd->bio,
-1, end_bio_extent_buffer_writepage,
0, epd->bio_flags, bio_flags, false);
epd->bio_flags = bio_flags;
@@ -3764,7 +3764,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
ret = -EIO;
break;
}
- offset += PAGE_CACHE_SIZE;
+ offset += PAGE_SIZE;
update_nr_written(p, wbc, 1);
unlock_page(p);
}
@@ -3808,8 +3808,8 @@ int btree_write_cache_pages(struct address_space *mapping,
index = mapping->writeback_index; /* Start from prev offset */
end = -1;
} else {
- index = wbc->range_start >> PAGE_CACHE_SHIFT;
- end = wbc->range_end >> PAGE_CACHE_SHIFT;
+ index = wbc->range_start >> PAGE_SHIFT;
+ end = wbc->range_end >> PAGE_SHIFT;
scanned = 1;
}
if (wbc->sync_mode == WB_SYNC_ALL)
@@ -3952,8 +3952,8 @@ static int extent_write_cache_pages(struct extent_io_tree *tree,
index = mapping->writeback_index; /* Start from prev offset */
end = -1;
} else {
- index = wbc->range_start >> PAGE_CACHE_SHIFT;
- end = wbc->range_end >> PAGE_CACHE_SHIFT;
+ index = wbc->range_start >> PAGE_SHIFT;
+ end = wbc->range_end >> PAGE_SHIFT;
scanned = 1;
}
if (wbc->sync_mode == WB_SYNC_ALL)
@@ -4087,8 +4087,8 @@ int extent_write_locked_range(struct extent_io_tree *tree, struct inode *inode,
int ret = 0;
struct address_space *mapping = inode->i_mapping;
struct page *page;
- unsigned long nr_pages = (end - start + PAGE_CACHE_SIZE) >>
- PAGE_CACHE_SHIFT;
+ unsigned long nr_pages = (end - start + PAGE_SIZE) >>
+ PAGE_SHIFT;

struct extent_page_data epd = {
.bio = NULL,
@@ -4106,18 +4106,18 @@ int extent_write_locked_range(struct extent_io_tree *tree, struct inode *inode,
};

while (start <= end) {
- page = find_get_page(mapping, start >> PAGE_CACHE_SHIFT);
+ page = find_get_page(mapping, start >> PAGE_SHIFT);
if (clear_page_dirty_for_io(page))
ret = __extent_writepage(page, &wbc_writepages, &epd);
else {
if (tree->ops && tree->ops->writepage_end_io_hook)
tree->ops->writepage_end_io_hook(page, start,
- start + PAGE_CACHE_SIZE - 1,
+ start + PAGE_SIZE - 1,
NULL, 1);
unlock_page(page);
}
- page_cache_release(page);
- start += PAGE_CACHE_SIZE;
+ put_page(page);
+ start += PAGE_SIZE;
}

flush_epd_write_bio(&epd);
@@ -4167,7 +4167,7 @@ int extent_readpages(struct extent_io_tree *tree,
list_del(&page->lru);
if (add_to_page_cache_lru(page, mapping,
page->index, GFP_NOFS)) {
- page_cache_release(page);
+ put_page(page);
continue;
}

@@ -4201,7 +4201,7 @@ int extent_invalidatepage(struct extent_io_tree *tree,
{
struct extent_state *cached_state = NULL;
u64 start = page_offset(page);
- u64 end = start + PAGE_CACHE_SIZE - 1;
+ u64 end = start + PAGE_SIZE - 1;
size_t blocksize = page->mapping->host->i_sb->s_blocksize;

start += ALIGN(offset, blocksize);
@@ -4227,7 +4227,7 @@ static int try_release_extent_state(struct extent_map_tree *map,
struct page *page, gfp_t mask)
{
u64 start = page_offset(page);
- u64 end = start + PAGE_CACHE_SIZE - 1;
+ u64 end = start + PAGE_SIZE - 1;
int ret = 1;

if (test_range_bit(tree, start, end,
@@ -4266,7 +4266,7 @@ int try_release_extent_mapping(struct extent_map_tree *map,
{
struct extent_map *em;
u64 start = page_offset(page);
- u64 end = start + PAGE_CACHE_SIZE - 1;
+ u64 end = start + PAGE_SIZE - 1;

if (gfpflags_allow_blocking(mask) &&
page->mapping->host->i_size > SZ_16M) {
@@ -4591,14 +4591,14 @@ static void btrfs_release_extent_buffer_page(struct extent_buffer *eb)
ClearPagePrivate(page);
set_page_private(page, 0);
/* One for the page private */
- page_cache_release(page);
+ put_page(page);
}

if (mapped)
spin_unlock(&page->mapping->private_lock);

/* One for when we alloced the page */
- page_cache_release(page);
+ put_page(page);
} while (index != 0);
}

@@ -4783,7 +4783,7 @@ struct extent_buffer *find_extent_buffer(struct btrfs_fs_info *fs_info,

rcu_read_lock();
eb = radix_tree_lookup(&fs_info->buffer_radix,
- start >> PAGE_CACHE_SHIFT);
+ start >> PAGE_SHIFT);
if (eb && atomic_inc_not_zero(&eb->refs)) {
rcu_read_unlock();
/*
@@ -4833,7 +4833,7 @@ again:
goto free_eb;
spin_lock(&fs_info->buffer_lock);
ret = radix_tree_insert(&fs_info->buffer_radix,
- start >> PAGE_CACHE_SHIFT, eb);
+ start >> PAGE_SHIFT, eb);
spin_unlock(&fs_info->buffer_lock);
radix_tree_preload_end();
if (ret == -EEXIST) {
@@ -4866,7 +4866,7 @@ struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info,
unsigned long len = fs_info->tree_root->nodesize;
unsigned long num_pages = num_extent_pages(start, len);
unsigned long i;
- unsigned long index = start >> PAGE_CACHE_SHIFT;
+ unsigned long index = start >> PAGE_SHIFT;
struct extent_buffer *eb;
struct extent_buffer *exists = NULL;
struct page *p;
@@ -4900,7 +4900,7 @@ struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info,
if (atomic_inc_not_zero(&exists->refs)) {
spin_unlock(&mapping->private_lock);
unlock_page(p);
- page_cache_release(p);
+ put_page(p);
mark_extent_buffer_accessed(exists, p);
goto free_eb;
}
@@ -4912,7 +4912,7 @@ struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info,
*/
ClearPagePrivate(p);
WARN_ON(PageDirty(p));
- page_cache_release(p);
+ put_page(p);
}
attach_extent_buffer_page(eb, p);
spin_unlock(&mapping->private_lock);
@@ -4935,7 +4935,7 @@ again:

spin_lock(&fs_info->buffer_lock);
ret = radix_tree_insert(&fs_info->buffer_radix,
- start >> PAGE_CACHE_SHIFT, eb);
+ start >> PAGE_SHIFT, eb);
spin_unlock(&fs_info->buffer_lock);
radix_tree_preload_end();
if (ret == -EEXIST) {
@@ -4998,7 +4998,7 @@ static int release_extent_buffer(struct extent_buffer *eb)

spin_lock(&fs_info->buffer_lock);
radix_tree_delete(&fs_info->buffer_radix,
- eb->start >> PAGE_CACHE_SHIFT);
+ eb->start >> PAGE_SHIFT);
spin_unlock(&fs_info->buffer_lock);
} else {
spin_unlock(&eb->refs_lock);
@@ -5172,8 +5172,8 @@ int read_extent_buffer_pages(struct extent_io_tree *tree,

if (start) {
WARN_ON(start < eb->start);
- start_i = (start >> PAGE_CACHE_SHIFT) -
- (eb->start >> PAGE_CACHE_SHIFT);
+ start_i = (start >> PAGE_SHIFT) -
+ (eb->start >> PAGE_SHIFT);
} else {
start_i = 0;
}
@@ -5256,18 +5256,18 @@ void read_extent_buffer(struct extent_buffer *eb, void *dstv,
struct page *page;
char *kaddr;
char *dst = (char *)dstv;
- size_t start_offset = eb->start & ((u64)PAGE_CACHE_SIZE - 1);
- unsigned long i = (start_offset + start) >> PAGE_CACHE_SHIFT;
+ size_t start_offset = eb->start & ((u64)PAGE_SIZE - 1);
+ unsigned long i = (start_offset + start) >> PAGE_SHIFT;

WARN_ON(start > eb->len);
WARN_ON(start + len > eb->start + eb->len);

- offset = (start_offset + start) & (PAGE_CACHE_SIZE - 1);
+ offset = (start_offset + start) & (PAGE_SIZE - 1);

while (len > 0) {
page = eb->pages[i];

- cur = min(len, (PAGE_CACHE_SIZE - offset));
+ cur = min(len, (PAGE_SIZE - offset));
kaddr = page_address(page);
memcpy(dst, kaddr + offset, cur);

@@ -5287,19 +5287,19 @@ int read_extent_buffer_to_user(struct extent_buffer *eb, void __user *dstv,
struct page *page;
char *kaddr;
char __user *dst = (char __user *)dstv;
- size_t start_offset = eb->start & ((u64)PAGE_CACHE_SIZE - 1);
- unsigned long i = (start_offset + start) >> PAGE_CACHE_SHIFT;
+ size_t start_offset = eb->start & ((u64)PAGE_SIZE - 1);
+ unsigned long i = (start_offset + start) >> PAGE_SHIFT;
int ret = 0;

WARN_ON(start > eb->len);
WARN_ON(start + len > eb->start + eb->len);

- offset = (start_offset + start) & (PAGE_CACHE_SIZE - 1);
+ offset = (start_offset + start) & (PAGE_SIZE - 1);

while (len > 0) {
page = eb->pages[i];

- cur = min(len, (PAGE_CACHE_SIZE - offset));
+ cur = min(len, (PAGE_SIZE - offset));
kaddr = page_address(page);
if (copy_to_user(dst, kaddr + offset, cur)) {
ret = -EFAULT;
@@ -5320,13 +5320,13 @@ int map_private_extent_buffer(struct extent_buffer *eb, unsigned long start,
unsigned long *map_start,
unsigned long *map_len)
{
- size_t offset = start & (PAGE_CACHE_SIZE - 1);
+ size_t offset = start & (PAGE_SIZE - 1);
char *kaddr;
struct page *p;
- size_t start_offset = eb->start & ((u64)PAGE_CACHE_SIZE - 1);
- unsigned long i = (start_offset + start) >> PAGE_CACHE_SHIFT;
+ size_t start_offset = eb->start & ((u64)PAGE_SIZE - 1);
+ unsigned long i = (start_offset + start) >> PAGE_SHIFT;
unsigned long end_i = (start_offset + start + min_len - 1) >>
- PAGE_CACHE_SHIFT;
+ PAGE_SHIFT;

if (i != end_i)
return -EINVAL;
@@ -5336,7 +5336,7 @@ int map_private_extent_buffer(struct extent_buffer *eb, unsigned long start,
*map_start = 0;
} else {
offset = 0;
- *map_start = ((u64)i << PAGE_CACHE_SHIFT) - start_offset;
+ *map_start = ((u64)i << PAGE_SHIFT) - start_offset;
}

if (start + min_len > eb->len) {
@@ -5349,7 +5349,7 @@ int map_private_extent_buffer(struct extent_buffer *eb, unsigned long start,
p = eb->pages[i];
kaddr = page_address(p);
*map = kaddr + offset;
- *map_len = PAGE_CACHE_SIZE - offset;
+ *map_len = PAGE_SIZE - offset;
return 0;
}

@@ -5362,19 +5362,19 @@ int memcmp_extent_buffer(struct extent_buffer *eb, const void *ptrv,
struct page *page;
char *kaddr;
char *ptr = (char *)ptrv;
- size_t start_offset = eb->start & ((u64)PAGE_CACHE_SIZE - 1);
- unsigned long i = (start_offset + start) >> PAGE_CACHE_SHIFT;
+ size_t start_offset = eb->start & ((u64)PAGE_SIZE - 1);
+ unsigned long i = (start_offset + start) >> PAGE_SHIFT;
int ret = 0;

WARN_ON(start > eb->len);
WARN_ON(start + len > eb->start + eb->len);

- offset = (start_offset + start) & (PAGE_CACHE_SIZE - 1);
+ offset = (start_offset + start) & (PAGE_SIZE - 1);

while (len > 0) {
page = eb->pages[i];

- cur = min(len, (PAGE_CACHE_SIZE - offset));
+ cur = min(len, (PAGE_SIZE - offset));

kaddr = page_address(page);
ret = memcmp(ptr, kaddr + offset, cur);
@@ -5397,19 +5397,19 @@ void write_extent_buffer(struct extent_buffer *eb, const void *srcv,
struct page *page;
char *kaddr;
char *src = (char *)srcv;
- size_t start_offset = eb->start & ((u64)PAGE_CACHE_SIZE - 1);
- unsigned long i = (start_offset + start) >> PAGE_CACHE_SHIFT;
+ size_t start_offset = eb->start & ((u64)PAGE_SIZE - 1);
+ unsigned long i = (start_offset + start) >> PAGE_SHIFT;

WARN_ON(start > eb->len);
WARN_ON(start + len > eb->start + eb->len);

- offset = (start_offset + start) & (PAGE_CACHE_SIZE - 1);
+ offset = (start_offset + start) & (PAGE_SIZE - 1);

while (len > 0) {
page = eb->pages[i];
WARN_ON(!PageUptodate(page));

- cur = min(len, PAGE_CACHE_SIZE - offset);
+ cur = min(len, PAGE_SIZE - offset);
kaddr = page_address(page);
memcpy(kaddr + offset, src, cur);

@@ -5427,19 +5427,19 @@ void memset_extent_buffer(struct extent_buffer *eb, char c,
size_t offset;
struct page *page;
char *kaddr;
- size_t start_offset = eb->start & ((u64)PAGE_CACHE_SIZE - 1);
- unsigned long i = (start_offset + start) >> PAGE_CACHE_SHIFT;
+ size_t start_offset = eb->start & ((u64)PAGE_SIZE - 1);
+ unsigned long i = (start_offset + start) >> PAGE_SHIFT;

WARN_ON(start > eb->len);
WARN_ON(start + len > eb->start + eb->len);

- offset = (start_offset + start) & (PAGE_CACHE_SIZE - 1);
+ offset = (start_offset + start) & (PAGE_SIZE - 1);

while (len > 0) {
page = eb->pages[i];
WARN_ON(!PageUptodate(page));

- cur = min(len, PAGE_CACHE_SIZE - offset);
+ cur = min(len, PAGE_SIZE - offset);
kaddr = page_address(page);
memset(kaddr + offset, c, cur);

@@ -5458,19 +5458,19 @@ void copy_extent_buffer(struct extent_buffer *dst, struct extent_buffer *src,
size_t offset;
struct page *page;
char *kaddr;
- size_t start_offset = dst->start & ((u64)PAGE_CACHE_SIZE - 1);
- unsigned long i = (start_offset + dst_offset) >> PAGE_CACHE_SHIFT;
+ size_t start_offset = dst->start & ((u64)PAGE_SIZE - 1);
+ unsigned long i = (start_offset + dst_offset) >> PAGE_SHIFT;

WARN_ON(src->len != dst_len);

offset = (start_offset + dst_offset) &
- (PAGE_CACHE_SIZE - 1);
+ (PAGE_SIZE - 1);

while (len > 0) {
page = dst->pages[i];
WARN_ON(!PageUptodate(page));

- cur = min(len, (unsigned long)(PAGE_CACHE_SIZE - offset));
+ cur = min(len, (unsigned long)(PAGE_SIZE - offset));

kaddr = page_address(page);
read_extent_buffer(src, kaddr + offset, src_offset, cur);
@@ -5512,7 +5512,7 @@ static inline void eb_bitmap_offset(struct extent_buffer *eb,
unsigned long *page_index,
size_t *page_offset)
{
- size_t start_offset = eb->start & ((u64)PAGE_CACHE_SIZE - 1);
+ size_t start_offset = eb->start & ((u64)PAGE_SIZE - 1);
size_t byte_offset = BIT_BYTE(nr);
size_t offset;

@@ -5523,8 +5523,8 @@ static inline void eb_bitmap_offset(struct extent_buffer *eb,
*/
offset = start_offset + start + byte_offset;

- *page_index = offset >> PAGE_CACHE_SHIFT;
- *page_offset = offset & (PAGE_CACHE_SIZE - 1);
+ *page_index = offset >> PAGE_SHIFT;
+ *page_offset = offset & (PAGE_SIZE - 1);
}

/**
@@ -5576,7 +5576,7 @@ void extent_buffer_bitmap_set(struct extent_buffer *eb, unsigned long start,
len -= bits_to_set;
bits_to_set = BITS_PER_BYTE;
mask_to_set = ~0U;
- if (++offset >= PAGE_CACHE_SIZE && len > 0) {
+ if (++offset >= PAGE_SIZE && len > 0) {
offset = 0;
page = eb->pages[++i];
WARN_ON(!PageUptodate(page));
@@ -5618,7 +5618,7 @@ void extent_buffer_bitmap_clear(struct extent_buffer *eb, unsigned long start,
len -= bits_to_clear;
bits_to_clear = BITS_PER_BYTE;
mask_to_clear = ~0U;
- if (++offset >= PAGE_CACHE_SIZE && len > 0) {
+ if (++offset >= PAGE_SIZE && len > 0) {
offset = 0;
page = eb->pages[++i];
WARN_ON(!PageUptodate(page));
@@ -5665,7 +5665,7 @@ void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
size_t cur;
size_t dst_off_in_page;
size_t src_off_in_page;
- size_t start_offset = dst->start & ((u64)PAGE_CACHE_SIZE - 1);
+ size_t start_offset = dst->start & ((u64)PAGE_SIZE - 1);
unsigned long dst_i;
unsigned long src_i;

@@ -5684,17 +5684,17 @@ void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,

while (len > 0) {
dst_off_in_page = (start_offset + dst_offset) &
- (PAGE_CACHE_SIZE - 1);
+ (PAGE_SIZE - 1);
src_off_in_page = (start_offset + src_offset) &
- (PAGE_CACHE_SIZE - 1);
+ (PAGE_SIZE - 1);

- dst_i = (start_offset + dst_offset) >> PAGE_CACHE_SHIFT;
- src_i = (start_offset + src_offset) >> PAGE_CACHE_SHIFT;
+ dst_i = (start_offset + dst_offset) >> PAGE_SHIFT;
+ src_i = (start_offset + src_offset) >> PAGE_SHIFT;

- cur = min(len, (unsigned long)(PAGE_CACHE_SIZE -
+ cur = min(len, (unsigned long)(PAGE_SIZE -
src_off_in_page));
cur = min_t(unsigned long, cur,
- (unsigned long)(PAGE_CACHE_SIZE - dst_off_in_page));
+ (unsigned long)(PAGE_SIZE - dst_off_in_page));

copy_pages(dst->pages[dst_i], dst->pages[src_i],
dst_off_in_page, src_off_in_page, cur);
@@ -5713,7 +5713,7 @@ void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
size_t src_off_in_page;
unsigned long dst_end = dst_offset + len - 1;
unsigned long src_end = src_offset + len - 1;
- size_t start_offset = dst->start & ((u64)PAGE_CACHE_SIZE - 1);
+ size_t start_offset = dst->start & ((u64)PAGE_SIZE - 1);
unsigned long dst_i;
unsigned long src_i;

@@ -5732,13 +5732,13 @@ void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
return;
}
while (len > 0) {
- dst_i = (start_offset + dst_end) >> PAGE_CACHE_SHIFT;
- src_i = (start_offset + src_end) >> PAGE_CACHE_SHIFT;
+ dst_i = (start_offset + dst_end) >> PAGE_SHIFT;
+ src_i = (start_offset + src_end) >> PAGE_SHIFT;

dst_off_in_page = (start_offset + dst_end) &
- (PAGE_CACHE_SIZE - 1);
+ (PAGE_SIZE - 1);
src_off_in_page = (start_offset + src_end) &
- (PAGE_CACHE_SIZE - 1);
+ (PAGE_SIZE - 1);

cur = min_t(unsigned long, len, src_off_in_page + 1);
cur = min(cur, dst_off_in_page + 1);
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 880d5292e972..9c5abfac3338 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -120,7 +120,7 @@ struct extent_state {
};

#define INLINE_EXTENT_BUFFER_PAGES 16
-#define MAX_INLINE_EXTENT_BUFFER_SIZE (INLINE_EXTENT_BUFFER_PAGES * PAGE_CACHE_SIZE)
+#define MAX_INLINE_EXTENT_BUFFER_SIZE (INLINE_EXTENT_BUFFER_PAGES * PAGE_SIZE)
struct extent_buffer {
u64 start;
unsigned long len;
@@ -366,8 +366,8 @@ void wait_on_extent_buffer_writeback(struct extent_buffer *eb);

static inline unsigned long num_extent_pages(u64 start, u64 len)
{
- return ((start + len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT) -
- (start >> PAGE_CACHE_SHIFT);
+ return ((start + len + PAGE_SIZE - 1) >> PAGE_SHIFT) -
+ (start >> PAGE_SHIFT);
}

static inline void extent_buffer_get(struct extent_buffer *eb)
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index a67e1c828d0f..9311b524b1c1 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -31,7 +31,7 @@
size) - 1))

#define MAX_CSUM_ITEMS(r, size) (min_t(u32, __MAX_CSUM_ITEMS(r, size), \
- PAGE_CACHE_SIZE))
+ PAGE_SIZE))

#define MAX_ORDERED_SUM_BYTES(r) ((PAGE_SIZE - \
sizeof(struct btrfs_ordered_sum)) / \
@@ -201,7 +201,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
csum = (u8 *)dst;
}

- if (bio->bi_iter.bi_size > PAGE_CACHE_SIZE * 8)
+ if (bio->bi_iter.bi_size > PAGE_SIZE * 8)
path->reada = READA_FORWARD;

WARN_ON(bio->bi_vcnt <= 0);
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 098bb8f690c9..bbb4b4a618a6 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -413,11 +413,11 @@ static noinline int btrfs_copy_from_user(loff_t pos, size_t write_bytes,
size_t copied = 0;
size_t total_copied = 0;
int pg = 0;
- int offset = pos & (PAGE_CACHE_SIZE - 1);
+ int offset = pos & (PAGE_SIZE - 1);

while (write_bytes > 0) {
size_t count = min_t(size_t,
- PAGE_CACHE_SIZE - offset, write_bytes);
+ PAGE_SIZE - offset, write_bytes);
struct page *page = prepared_pages[pg];
/*
* Copy data from userspace to the current page
@@ -447,7 +447,7 @@ static noinline int btrfs_copy_from_user(loff_t pos, size_t write_bytes,
if (unlikely(copied == 0))
break;

- if (copied < PAGE_CACHE_SIZE - offset) {
+ if (copied < PAGE_SIZE - offset) {
offset += copied;
} else {
pg++;
@@ -472,7 +472,7 @@ static void btrfs_drop_pages(struct page **pages, size_t num_pages)
*/
ClearPageChecked(pages[i]);
unlock_page(pages[i]);
- page_cache_release(pages[i]);
+ put_page(pages[i]);
}
}

@@ -1296,7 +1296,7 @@ static int prepare_uptodate_page(struct inode *inode,
{
int ret = 0;

- if (((pos & (PAGE_CACHE_SIZE - 1)) || force_uptodate) &&
+ if (((pos & (PAGE_SIZE - 1)) || force_uptodate) &&
!PageUptodate(page)) {
ret = btrfs_readpage(NULL, page);
if (ret)
@@ -1322,7 +1322,7 @@ static noinline int prepare_pages(struct inode *inode, struct page **pages,
size_t write_bytes, bool force_uptodate)
{
int i;
- unsigned long index = pos >> PAGE_CACHE_SHIFT;
+ unsigned long index = pos >> PAGE_SHIFT;
gfp_t mask = btrfs_alloc_write_mask(inode->i_mapping);
int err = 0;
int faili;
@@ -1344,7 +1344,7 @@ again:
err = prepare_uptodate_page(inode, pages[i],
pos + write_bytes, false);
if (err) {
- page_cache_release(pages[i]);
+ put_page(pages[i]);
if (err == -EAGAIN) {
err = 0;
goto again;
@@ -1359,7 +1359,7 @@ again:
fail:
while (faili >= 0) {
unlock_page(pages[faili]);
- page_cache_release(pages[faili]);
+ put_page(pages[faili]);
faili--;
}
return err;
@@ -1387,8 +1387,8 @@ lock_and_cleanup_extent_if_need(struct inode *inode, struct page **pages,
int i;
int ret = 0;

- start_pos = pos & ~((u64)PAGE_CACHE_SIZE - 1);
- last_pos = start_pos + ((u64)num_pages << PAGE_CACHE_SHIFT) - 1;
+ start_pos = pos & ~((u64)PAGE_SIZE - 1);
+ last_pos = start_pos + ((u64)num_pages << PAGE_SHIFT) - 1;

if (start_pos < inode->i_size) {
struct btrfs_ordered_extent *ordered;
@@ -1404,7 +1404,7 @@ lock_and_cleanup_extent_if_need(struct inode *inode, struct page **pages,
cached_state, GFP_NOFS);
for (i = 0; i < num_pages; i++) {
unlock_page(pages[i]);
- page_cache_release(pages[i]);
+ put_page(pages[i]);
}
btrfs_start_ordered_extent(inode, ordered, 1);
btrfs_put_ordered_extent(ordered);
@@ -1493,8 +1493,8 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
bool force_page_uptodate = false;
bool need_unlock;

- nrptrs = min(DIV_ROUND_UP(iov_iter_count(i), PAGE_CACHE_SIZE),
- PAGE_CACHE_SIZE / (sizeof(struct page *)));
+ nrptrs = min(DIV_ROUND_UP(iov_iter_count(i), PAGE_SIZE),
+ PAGE_SIZE / (sizeof(struct page *)));
nrptrs = min(nrptrs, current->nr_dirtied_pause - current->nr_dirtied);
nrptrs = max(nrptrs, 8);
pages = kmalloc_array(nrptrs, sizeof(struct page *), GFP_KERNEL);
@@ -1502,12 +1502,12 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
return -ENOMEM;

while (iov_iter_count(i) > 0) {
- size_t offset = pos & (PAGE_CACHE_SIZE - 1);
+ size_t offset = pos & (PAGE_SIZE - 1);
size_t write_bytes = min(iov_iter_count(i),
- nrptrs * (size_t)PAGE_CACHE_SIZE -
+ nrptrs * (size_t)PAGE_SIZE -
offset);
size_t num_pages = DIV_ROUND_UP(write_bytes + offset,
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);
size_t reserve_bytes;
size_t dirty_pages;
size_t copied;
@@ -1523,7 +1523,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
break;
}

- reserve_bytes = num_pages << PAGE_CACHE_SHIFT;
+ reserve_bytes = num_pages << PAGE_SHIFT;

if (BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW |
BTRFS_INODE_PREALLOC)) {
@@ -1541,8 +1541,8 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
* write_bytes, so scale down.
*/
num_pages = DIV_ROUND_UP(write_bytes + offset,
- PAGE_CACHE_SIZE);
- reserve_bytes = num_pages << PAGE_CACHE_SHIFT;
+ PAGE_SIZE);
+ reserve_bytes = num_pages << PAGE_SHIFT;
goto reserve_metadata;
}
}
@@ -1602,7 +1602,7 @@ again:
} else {
force_page_uptodate = false;
dirty_pages = DIV_ROUND_UP(copied + offset,
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);
}

/*
@@ -1614,7 +1614,7 @@ again:
*/
if (num_pages > dirty_pages) {
release_bytes = (num_pages - dirty_pages) <<
- PAGE_CACHE_SHIFT;
+ PAGE_SHIFT;
if (copied > 0) {
spin_lock(&BTRFS_I(inode)->lock);
BTRFS_I(inode)->outstanding_extents++;
@@ -1627,13 +1627,13 @@ again:
u64 __pos;

__pos = round_down(pos, root->sectorsize) +
- (dirty_pages << PAGE_CACHE_SHIFT);
+ (dirty_pages << PAGE_SHIFT);
btrfs_delalloc_release_space(inode, __pos,
release_bytes);
}
}

- release_bytes = dirty_pages << PAGE_CACHE_SHIFT;
+ release_bytes = dirty_pages << PAGE_SHIFT;

if (copied > 0)
ret = btrfs_dirty_pages(root, inode, pages,
@@ -1655,7 +1655,7 @@ again:
if (only_release_metadata && copied > 0) {
lockstart = round_down(pos, root->sectorsize);
lockend = lockstart +
- (dirty_pages << PAGE_CACHE_SHIFT) - 1;
+ (dirty_pages << PAGE_SHIFT) - 1;

set_extent_bit(&BTRFS_I(inode)->io_tree, lockstart,
lockend, EXTENT_NORESERVE, NULL,
@@ -1668,7 +1668,7 @@ again:
cond_resched();

balance_dirty_pages_ratelimited(inode->i_mapping);
- if (dirty_pages < (root->nodesize >> PAGE_CACHE_SHIFT) + 1)
+ if (dirty_pages < (root->nodesize >> PAGE_SHIFT) + 1)
btrfs_btree_balance_dirty(root);

pos += copied;
@@ -1724,8 +1724,8 @@ static ssize_t __btrfs_direct_write(struct kiocb *iocb,
goto out;
written += written_buffered;
iocb->ki_pos = pos + written_buffered;
- invalidate_mapping_pages(file->f_mapping, pos >> PAGE_CACHE_SHIFT,
- endbyte >> PAGE_CACHE_SHIFT);
+ invalidate_mapping_pages(file->f_mapping, pos >> PAGE_SHIFT,
+ endbyte >> PAGE_SHIFT);
out:
return written ? written : err;
}
@@ -2304,7 +2304,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
return ret;

inode_lock(inode);
- ino_size = round_up(inode->i_size, PAGE_CACHE_SIZE);
+ ino_size = round_up(inode->i_size, PAGE_SIZE);
ret = find_first_non_hole(inode, &offset, &len);
if (ret < 0)
goto out_only_mutex;
@@ -2317,8 +2317,8 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
lockstart = round_up(offset, BTRFS_I(inode)->root->sectorsize);
lockend = round_down(offset + len,
BTRFS_I(inode)->root->sectorsize) - 1;
- same_page = ((offset >> PAGE_CACHE_SHIFT) ==
- ((offset + len - 1) >> PAGE_CACHE_SHIFT));
+ same_page = ((offset >> PAGE_SHIFT) ==
+ ((offset + len - 1) >> PAGE_SHIFT));

/*
* We needn't truncate any page which is beyond the end of the file
@@ -2328,7 +2328,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
* Only do this if we are in the same page and we aren't doing the
* entire page.
*/
- if (same_page && len < PAGE_CACHE_SIZE) {
+ if (same_page && len < PAGE_SIZE) {
if (offset < ino_size) {
truncated_page = true;
ret = btrfs_truncate_page(inode, offset, len, 0);
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 8f835bfa1bdd..5e6062c26129 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -29,7 +29,7 @@
#include "inode-map.h"
#include "volumes.h"

-#define BITS_PER_BITMAP (PAGE_CACHE_SIZE * 8)
+#define BITS_PER_BITMAP (PAGE_SIZE * 8)
#define MAX_CACHE_BYTES_PER_GIG SZ_32K

struct btrfs_trim_range {
@@ -295,7 +295,7 @@ static int readahead_cache(struct inode *inode)
return -ENOMEM;

file_ra_state_init(ra, inode->i_mapping);
- last_index = (i_size_read(inode) - 1) >> PAGE_CACHE_SHIFT;
+ last_index = (i_size_read(inode) - 1) >> PAGE_SHIFT;

page_cache_sync_readahead(inode->i_mapping, ra, NULL, 0, last_index);

@@ -310,14 +310,14 @@ static int io_ctl_init(struct btrfs_io_ctl *io_ctl, struct inode *inode,
int num_pages;
int check_crcs = 0;

- num_pages = DIV_ROUND_UP(i_size_read(inode), PAGE_CACHE_SIZE);
+ num_pages = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);

if (btrfs_ino(inode) != BTRFS_FREE_INO_OBJECTID)
check_crcs = 1;

/* Make sure we can fit our crcs into the first page */
if (write && check_crcs &&
- (num_pages * sizeof(u32)) >= PAGE_CACHE_SIZE)
+ (num_pages * sizeof(u32)) >= PAGE_SIZE)
return -ENOSPC;

memset(io_ctl, 0, sizeof(struct btrfs_io_ctl));
@@ -354,9 +354,9 @@ static void io_ctl_map_page(struct btrfs_io_ctl *io_ctl, int clear)
io_ctl->page = io_ctl->pages[io_ctl->index++];
io_ctl->cur = page_address(io_ctl->page);
io_ctl->orig = io_ctl->cur;
- io_ctl->size = PAGE_CACHE_SIZE;
+ io_ctl->size = PAGE_SIZE;
if (clear)
- memset(io_ctl->cur, 0, PAGE_CACHE_SIZE);
+ memset(io_ctl->cur, 0, PAGE_SIZE);
}

static void io_ctl_drop_pages(struct btrfs_io_ctl *io_ctl)
@@ -369,7 +369,7 @@ static void io_ctl_drop_pages(struct btrfs_io_ctl *io_ctl)
if (io_ctl->pages[i]) {
ClearPageChecked(io_ctl->pages[i]);
unlock_page(io_ctl->pages[i]);
- page_cache_release(io_ctl->pages[i]);
+ put_page(io_ctl->pages[i]);
}
}
}
@@ -475,7 +475,7 @@ static void io_ctl_set_crc(struct btrfs_io_ctl *io_ctl, int index)
offset = sizeof(u32) * io_ctl->num_pages;

crc = btrfs_csum_data(io_ctl->orig + offset, crc,
- PAGE_CACHE_SIZE - offset);
+ PAGE_SIZE - offset);
btrfs_csum_final(crc, (char *)&crc);
io_ctl_unmap_page(io_ctl);
tmp = page_address(io_ctl->pages[0]);
@@ -503,7 +503,7 @@ static int io_ctl_check_crc(struct btrfs_io_ctl *io_ctl, int index)

io_ctl_map_page(io_ctl, 0);
crc = btrfs_csum_data(io_ctl->orig + offset, crc,
- PAGE_CACHE_SIZE - offset);
+ PAGE_SIZE - offset);
btrfs_csum_final(crc, (char *)&crc);
if (val != crc) {
btrfs_err_rl(io_ctl->root->fs_info,
@@ -561,7 +561,7 @@ static int io_ctl_add_bitmap(struct btrfs_io_ctl *io_ctl, void *bitmap)
io_ctl_map_page(io_ctl, 0);
}

- memcpy(io_ctl->cur, bitmap, PAGE_CACHE_SIZE);
+ memcpy(io_ctl->cur, bitmap, PAGE_SIZE);
io_ctl_set_crc(io_ctl, io_ctl->index - 1);
if (io_ctl->index < io_ctl->num_pages)
io_ctl_map_page(io_ctl, 0);
@@ -621,7 +621,7 @@ static int io_ctl_read_bitmap(struct btrfs_io_ctl *io_ctl,
if (ret)
return ret;

- memcpy(entry->bitmap, io_ctl->cur, PAGE_CACHE_SIZE);
+ memcpy(entry->bitmap, io_ctl->cur, PAGE_SIZE);
io_ctl_unmap_page(io_ctl);

return 0;
@@ -775,7 +775,7 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
} else {
ASSERT(num_bitmaps);
num_bitmaps--;
- e->bitmap = kzalloc(PAGE_CACHE_SIZE, GFP_NOFS);
+ e->bitmap = kzalloc(PAGE_SIZE, GFP_NOFS);
if (!e->bitmap) {
kmem_cache_free(
btrfs_free_space_cachep, e);
@@ -1660,7 +1660,7 @@ static void recalculate_thresholds(struct btrfs_free_space_ctl *ctl)
* sure we don't go over our overall goal of MAX_CACHE_BYTES_PER_GIG as
* we add more bitmaps.
*/
- bitmap_bytes = (ctl->total_bitmaps + 1) * PAGE_CACHE_SIZE;
+ bitmap_bytes = (ctl->total_bitmaps + 1) * PAGE_SIZE;

if (bitmap_bytes >= max_bytes) {
ctl->extents_thresh = 0;
@@ -2111,7 +2111,7 @@ new_bitmap:
}

/* allocate the bitmap */
- info->bitmap = kzalloc(PAGE_CACHE_SIZE, GFP_NOFS);
+ info->bitmap = kzalloc(PAGE_SIZE, GFP_NOFS);
spin_lock(&ctl->tree_lock);
if (!info->bitmap) {
ret = -ENOMEM;
@@ -3580,7 +3580,7 @@ again:
}

if (!map) {
- map = kzalloc(PAGE_CACHE_SIZE, GFP_NOFS);
+ map = kzalloc(PAGE_SIZE, GFP_NOFS);
if (!map) {
kmem_cache_free(btrfs_free_space_cachep, info);
return -ENOMEM;
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index e50316c4af15..72e34e25dd8e 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -283,7 +283,7 @@ void btrfs_unpin_free_ino(struct btrfs_root *root)
}

#define INIT_THRESHOLD ((SZ_32K / 2) / sizeof(struct btrfs_free_space))
-#define INODES_PER_BITMAP (PAGE_CACHE_SIZE * 8)
+#define INODES_PER_BITMAP (PAGE_SIZE * 8)

/*
* The goal is to keep the memory used by the free_ino tree won't
@@ -317,7 +317,7 @@ static void recalculate_thresholds(struct btrfs_free_space_ctl *ctl)
}

ctl->extents_thresh = (max_bitmaps - ctl->total_bitmaps) *
- PAGE_CACHE_SIZE / sizeof(*info);
+ PAGE_SIZE / sizeof(*info);
}

/*
@@ -481,12 +481,12 @@ again:

spin_lock(&ctl->tree_lock);
prealloc = sizeof(struct btrfs_free_space) * ctl->free_extents;
- prealloc = ALIGN(prealloc, PAGE_CACHE_SIZE);
- prealloc += ctl->total_bitmaps * PAGE_CACHE_SIZE;
+ prealloc = ALIGN(prealloc, PAGE_SIZE);
+ prealloc += ctl->total_bitmaps * PAGE_SIZE;
spin_unlock(&ctl->tree_lock);

/* Just to make sure we have enough space */
- prealloc += 8 * PAGE_CACHE_SIZE;
+ prealloc += 8 * PAGE_SIZE;

ret = btrfs_delalloc_reserve_space(inode, 0, prealloc);
if (ret)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index d96f5cf38a2d..ad15bbfc5003 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -194,7 +194,7 @@ static int insert_inline_extent(struct btrfs_trans_handle *trans,
while (compressed_size > 0) {
cpage = compressed_pages[i];
cur_size = min_t(unsigned long, compressed_size,
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);

kaddr = kmap_atomic(cpage);
write_extent_buffer(leaf, kaddr, ptr, cur_size);
@@ -208,13 +208,13 @@ static int insert_inline_extent(struct btrfs_trans_handle *trans,
compress_type);
} else {
page = find_get_page(inode->i_mapping,
- start >> PAGE_CACHE_SHIFT);
+ start >> PAGE_SHIFT);
btrfs_set_file_extent_compression(leaf, ei, 0);
kaddr = kmap_atomic(page);
- offset = start & (PAGE_CACHE_SIZE - 1);
+ offset = start & (PAGE_SIZE - 1);
write_extent_buffer(leaf, kaddr + offset, ptr, size);
kunmap_atomic(kaddr);
- page_cache_release(page);
+ put_page(page);
}
btrfs_mark_buffer_dirty(leaf);
btrfs_release_path(path);
@@ -263,7 +263,7 @@ static noinline int cow_file_range_inline(struct btrfs_root *root,
data_len = compressed_size;

if (start > 0 ||
- actual_end > PAGE_CACHE_SIZE ||
+ actual_end > PAGE_SIZE ||
data_len > BTRFS_MAX_INLINE_DATA_SIZE(root) ||
(!compressed_size &&
(actual_end & (root->sectorsize - 1)) == 0) ||
@@ -322,7 +322,7 @@ out:
* And at reserve time, it's always aligned to page size, so
* just free one page here.
*/
- btrfs_qgroup_free_data(inode, 0, PAGE_CACHE_SIZE);
+ btrfs_qgroup_free_data(inode, 0, PAGE_SIZE);
btrfs_free_path(path);
btrfs_end_transaction(trans, root);
return ret;
@@ -435,8 +435,8 @@ static noinline void compress_file_range(struct inode *inode,
actual_end = min_t(u64, isize, end + 1);
again:
will_compress = 0;
- nr_pages = (end >> PAGE_CACHE_SHIFT) - (start >> PAGE_CACHE_SHIFT) + 1;
- nr_pages = min_t(unsigned long, nr_pages, SZ_128K / PAGE_CACHE_SIZE);
+ nr_pages = (end >> PAGE_SHIFT) - (start >> PAGE_SHIFT) + 1;
+ nr_pages = min_t(unsigned long, nr_pages, SZ_128K / PAGE_SIZE);

/*
* we don't want to send crud past the end of i_size through
@@ -514,7 +514,7 @@ again:

if (!ret) {
unsigned long offset = total_compressed &
- (PAGE_CACHE_SIZE - 1);
+ (PAGE_SIZE - 1);
struct page *page = pages[nr_pages_ret - 1];
char *kaddr;

@@ -524,7 +524,7 @@ again:
if (offset) {
kaddr = kmap_atomic(page);
memset(kaddr + offset, 0,
- PAGE_CACHE_SIZE - offset);
+ PAGE_SIZE - offset);
kunmap_atomic(kaddr);
}
will_compress = 1;
@@ -580,7 +580,7 @@ cont:
* one last check to make sure the compression is really a
* win, compare the page count read with the blocks on disk
*/
- total_in = ALIGN(total_in, PAGE_CACHE_SIZE);
+ total_in = ALIGN(total_in, PAGE_SIZE);
if (total_compressed >= total_in) {
will_compress = 0;
} else {
@@ -594,7 +594,7 @@ cont:
*/
for (i = 0; i < nr_pages_ret; i++) {
WARN_ON(pages[i]->mapping);
- page_cache_release(pages[i]);
+ put_page(pages[i]);
}
kfree(pages);
pages = NULL;
@@ -650,7 +650,7 @@ cleanup_and_bail_uncompressed:
free_pages_out:
for (i = 0; i < nr_pages_ret; i++) {
WARN_ON(pages[i]->mapping);
- page_cache_release(pages[i]);
+ put_page(pages[i]);
}
kfree(pages);
}
@@ -664,7 +664,7 @@ static void free_async_extent_pages(struct async_extent *async_extent)

for (i = 0; i < async_extent->nr_pages; i++) {
WARN_ON(async_extent->pages[i]->mapping);
- page_cache_release(async_extent->pages[i]);
+ put_page(async_extent->pages[i]);
}
kfree(async_extent->pages);
async_extent->nr_pages = 0;
@@ -966,7 +966,7 @@ static noinline int cow_file_range(struct inode *inode,
PAGE_END_WRITEBACK);

*nr_written = *nr_written +
- (end - start + PAGE_CACHE_SIZE) / PAGE_CACHE_SIZE;
+ (end - start + PAGE_SIZE) / PAGE_SIZE;
*page_started = 1;
goto out;
} else if (ret < 0) {
@@ -1106,8 +1106,8 @@ static noinline void async_cow_submit(struct btrfs_work *work)
async_cow = container_of(work, struct async_cow, work);

root = async_cow->root;
- nr_pages = (async_cow->end - async_cow->start + PAGE_CACHE_SIZE) >>
- PAGE_CACHE_SHIFT;
+ nr_pages = (async_cow->end - async_cow->start + PAGE_SIZE) >>
+ PAGE_SHIFT;

/*
* atomic_sub_return implies a barrier for waitqueue_active
@@ -1164,8 +1164,8 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page,
async_cow_start, async_cow_submit,
async_cow_free);

- nr_pages = (cur_end - start + PAGE_CACHE_SIZE) >>
- PAGE_CACHE_SHIFT;
+ nr_pages = (cur_end - start + PAGE_SIZE) >>
+ PAGE_SHIFT;
atomic_add(nr_pages, &root->fs_info->async_delalloc_pages);

btrfs_queue_work(root->fs_info->delalloc_workers,
@@ -1960,7 +1960,7 @@ static noinline int add_pending_csums(struct btrfs_trans_handle *trans,
int btrfs_set_extent_delalloc(struct inode *inode, u64 start, u64 end,
struct extent_state **cached_state)
{
- WARN_ON((end & (PAGE_CACHE_SIZE - 1)) == 0);
+ WARN_ON((end & (PAGE_SIZE - 1)) == 0);
return set_extent_delalloc(&BTRFS_I(inode)->io_tree, start, end,
cached_state, GFP_NOFS);
}
@@ -1993,7 +1993,7 @@ again:

inode = page->mapping->host;
page_start = page_offset(page);
- page_end = page_offset(page) + PAGE_CACHE_SIZE - 1;
+ page_end = page_offset(page) + PAGE_SIZE - 1;

lock_extent_bits(&BTRFS_I(inode)->io_tree, page_start, page_end,
&cached_state);
@@ -2013,7 +2013,7 @@ again:
}

ret = btrfs_delalloc_reserve_space(inode, page_start,
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);
if (ret) {
mapping_set_error(page->mapping, ret);
end_extent_writepage(page, ret, page_start, page_end);
@@ -2029,7 +2029,7 @@ out:
&cached_state, GFP_NOFS);
out_page:
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
kfree(fixup);
}

@@ -2062,7 +2062,7 @@ static int btrfs_writepage_start_hook(struct page *page, u64 start, u64 end)
return -EAGAIN;

SetPageChecked(page);
- page_cache_get(page);
+ get_page(page);
btrfs_init_work(&fixup->work, btrfs_fixup_helper,
btrfs_writepage_fixup_worker, NULL, NULL);
fixup->page = page;
@@ -4236,7 +4236,7 @@ static int truncate_inline_extent(struct inode *inode,

if (btrfs_file_extent_compression(leaf, fi) != BTRFS_COMPRESS_NONE) {
loff_t offset = new_size;
- loff_t page_end = ALIGN(offset, PAGE_CACHE_SIZE);
+ loff_t page_end = ALIGN(offset, PAGE_SIZE);

/*
* Zero out the remaining of the last page of our inline extent,
@@ -4621,8 +4621,8 @@ int btrfs_truncate_page(struct inode *inode, loff_t from, loff_t len,
struct extent_state *cached_state = NULL;
char *kaddr;
u32 blocksize = root->sectorsize;
- pgoff_t index = from >> PAGE_CACHE_SHIFT;
- unsigned offset = from & (PAGE_CACHE_SIZE-1);
+ pgoff_t index = from >> PAGE_SHIFT;
+ unsigned offset = from & (PAGE_SIZE-1);
struct page *page;
gfp_t mask = btrfs_alloc_write_mask(mapping);
int ret = 0;
@@ -4633,7 +4633,7 @@ int btrfs_truncate_page(struct inode *inode, loff_t from, loff_t len,
(!len || ((len & (blocksize - 1)) == 0)))
goto out;
ret = btrfs_delalloc_reserve_space(inode,
- round_down(from, PAGE_CACHE_SIZE), PAGE_CACHE_SIZE);
+ round_down(from, PAGE_SIZE), PAGE_SIZE);
if (ret)
goto out;

@@ -4641,21 +4641,21 @@ again:
page = find_or_create_page(mapping, index, mask);
if (!page) {
btrfs_delalloc_release_space(inode,
- round_down(from, PAGE_CACHE_SIZE),
- PAGE_CACHE_SIZE);
+ round_down(from, PAGE_SIZE),
+ PAGE_SIZE);
ret = -ENOMEM;
goto out;
}

page_start = page_offset(page);
- page_end = page_start + PAGE_CACHE_SIZE - 1;
+ page_end = page_start + PAGE_SIZE - 1;

if (!PageUptodate(page)) {
ret = btrfs_readpage(NULL, page);
lock_page(page);
if (page->mapping != mapping) {
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
goto again;
}
if (!PageUptodate(page)) {
@@ -4673,7 +4673,7 @@ again:
unlock_extent_cached(io_tree, page_start, page_end,
&cached_state, GFP_NOFS);
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
btrfs_start_ordered_extent(inode, ordered, 1);
btrfs_put_ordered_extent(ordered);
goto again;
@@ -4692,9 +4692,9 @@ again:
goto out_unlock;
}

- if (offset != PAGE_CACHE_SIZE) {
+ if (offset != PAGE_SIZE) {
if (!len)
- len = PAGE_CACHE_SIZE - offset;
+ len = PAGE_SIZE - offset;
kaddr = kmap(page);
if (front)
memset(kaddr, 0, offset);
@@ -4711,9 +4711,9 @@ again:
out_unlock:
if (ret)
btrfs_delalloc_release_space(inode, page_start,
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
out:
return ret;
}
@@ -6701,7 +6701,7 @@ static noinline int uncompress_inline(struct btrfs_path *path,

read_extent_buffer(leaf, tmp, ptr, inline_size);

- max_size = min_t(unsigned long, PAGE_CACHE_SIZE, max_size);
+ max_size = min_t(unsigned long, PAGE_SIZE, max_size);
ret = btrfs_decompress(compress_type, tmp, page,
extent_offset, inline_size, max_size);
kfree(tmp);
@@ -6863,8 +6863,8 @@ next:

size = btrfs_file_extent_inline_len(leaf, path->slots[0], item);
extent_offset = page_offset(page) + pg_offset - extent_start;
- copy_size = min_t(u64, PAGE_CACHE_SIZE - pg_offset,
- size - extent_offset);
+ copy_size = min_t(u64, PAGE_SIZE - pg_offset,
+ size - extent_offset);
em->start = extent_start + extent_offset;
em->len = ALIGN(copy_size, root->sectorsize);
em->orig_block_len = em->len;
@@ -6883,9 +6883,9 @@ next:
map = kmap(page);
read_extent_buffer(leaf, map + pg_offset, ptr,
copy_size);
- if (pg_offset + copy_size < PAGE_CACHE_SIZE) {
+ if (pg_offset + copy_size < PAGE_SIZE) {
memset(map + pg_offset + copy_size, 0,
- PAGE_CACHE_SIZE - pg_offset -
+ PAGE_SIZE - pg_offset -
copy_size);
}
kunmap(page);
@@ -7320,12 +7320,12 @@ bool btrfs_page_exists_in_range(struct inode *inode, loff_t start, loff_t end)
int start_idx;
int end_idx;

- start_idx = start >> PAGE_CACHE_SHIFT;
+ start_idx = start >> PAGE_SHIFT;

/*
* end is the last byte in the last page. end == start is legal
*/
- end_idx = end >> PAGE_CACHE_SHIFT;
+ end_idx = end >> PAGE_SHIFT;

rcu_read_lock();

@@ -7366,7 +7366,7 @@ bool btrfs_page_exists_in_range(struct inode *inode, loff_t start, loff_t end)
* include/linux/pagemap.h for details.
*/
if (unlikely(page != *pagep)) {
- page_cache_release(page);
+ put_page(page);
page = NULL;
}
}
@@ -7374,7 +7374,7 @@ bool btrfs_page_exists_in_range(struct inode *inode, loff_t start, loff_t end)
if (page) {
if (page->index <= end_idx)
found = true;
- page_cache_release(page);
+ put_page(page);
}

rcu_read_unlock();
@@ -8621,7 +8621,7 @@ static int __btrfs_releasepage(struct page *page, gfp_t gfp_flags)
if (ret == 1) {
ClearPagePrivate(page);
set_page_private(page, 0);
- page_cache_release(page);
+ put_page(page);
}
return ret;
}
@@ -8641,7 +8641,7 @@ static void btrfs_invalidatepage(struct page *page, unsigned int offset,
struct btrfs_ordered_extent *ordered;
struct extent_state *cached_state = NULL;
u64 page_start = page_offset(page);
- u64 page_end = page_start + PAGE_CACHE_SIZE - 1;
+ u64 page_end = page_start + PAGE_SIZE - 1;
int inode_evicting = inode->i_state & I_FREEING;

/*
@@ -8692,7 +8692,7 @@ static void btrfs_invalidatepage(struct page *page, unsigned int offset,

if (btrfs_dec_test_ordered_pending(inode, &ordered,
page_start,
- PAGE_CACHE_SIZE, 1))
+ PAGE_SIZE, 1))
btrfs_finish_ordered_io(ordered);
}
btrfs_put_ordered_extent(ordered);
@@ -8714,7 +8714,7 @@ static void btrfs_invalidatepage(struct page *page, unsigned int offset,
* 2) Not written to disk
* This means the reserved space should be freed here.
*/
- btrfs_qgroup_free_data(inode, page_start, PAGE_CACHE_SIZE);
+ btrfs_qgroup_free_data(inode, page_start, PAGE_SIZE);
if (!inode_evicting) {
clear_extent_bit(tree, page_start, page_end,
EXTENT_LOCKED | EXTENT_DIRTY |
@@ -8729,7 +8729,7 @@ static void btrfs_invalidatepage(struct page *page, unsigned int offset,
if (PagePrivate(page)) {
ClearPagePrivate(page);
set_page_private(page, 0);
- page_cache_release(page);
+ put_page(page);
}
}

@@ -8766,10 +8766,10 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)

sb_start_pagefault(inode->i_sb);
page_start = page_offset(page);
- page_end = page_start + PAGE_CACHE_SIZE - 1;
+ page_end = page_start + PAGE_SIZE - 1;

ret = btrfs_delalloc_reserve_space(inode, page_start,
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);
if (!ret) {
ret = file_update_time(vma->vm_file);
reserved = 1;
@@ -8836,14 +8836,14 @@ again:
ret = 0;

/* page is wholly or partially inside EOF */
- if (page_start + PAGE_CACHE_SIZE > size)
- zero_start = size & ~PAGE_CACHE_MASK;
+ if (page_start + PAGE_SIZE > size)
+ zero_start = size & ~PAGE_MASK;
else
- zero_start = PAGE_CACHE_SIZE;
+ zero_start = PAGE_SIZE;

- if (zero_start != PAGE_CACHE_SIZE) {
+ if (zero_start != PAGE_SIZE) {
kaddr = kmap(page);
- memset(kaddr + zero_start, 0, PAGE_CACHE_SIZE - zero_start);
+ memset(kaddr + zero_start, 0, PAGE_SIZE - zero_start);
flush_dcache_page(page);
kunmap(page);
}
@@ -8864,7 +8864,7 @@ out_unlock:
}
unlock_page(page);
out:
- btrfs_delalloc_release_space(inode, page_start, PAGE_CACHE_SIZE);
+ btrfs_delalloc_release_space(inode, page_start, PAGE_SIZE);
out_noreserve:
sb_end_pagefault(inode->i_sb);
return ret;
@@ -9250,7 +9250,7 @@ static int btrfs_getattr(struct vfsmount *mnt,

generic_fillattr(inode, stat);
stat->dev = BTRFS_I(inode)->root->anon_dev;
- stat->blksize = PAGE_CACHE_SIZE;
+ stat->blksize = PAGE_SIZE;

spin_lock(&BTRFS_I(inode)->lock);
delalloc_bytes = BTRFS_I(inode)->delalloc_bytes;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 48aee9846329..095a135ef6a2 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -900,7 +900,7 @@ static int check_defrag_in_cache(struct inode *inode, u64 offset, u32 thresh)
u64 end;

read_lock(&em_tree->lock);
- em = lookup_extent_mapping(em_tree, offset, PAGE_CACHE_SIZE);
+ em = lookup_extent_mapping(em_tree, offset, PAGE_SIZE);
read_unlock(&em_tree->lock);

if (em) {
@@ -990,7 +990,7 @@ static struct extent_map *defrag_lookup_extent(struct inode *inode, u64 start)
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct extent_map *em;
- u64 len = PAGE_CACHE_SIZE;
+ u64 len = PAGE_SIZE;

/*
* hopefully we have this extent in the tree already, try without
@@ -1126,15 +1126,15 @@ static int cluster_pages_for_defrag(struct inode *inode,
struct extent_io_tree *tree;
gfp_t mask = btrfs_alloc_write_mask(inode->i_mapping);

- file_end = (isize - 1) >> PAGE_CACHE_SHIFT;
+ file_end = (isize - 1) >> PAGE_SHIFT;
if (!isize || start_index > file_end)
return 0;

page_cnt = min_t(u64, (u64)num_pages, (u64)file_end - start_index + 1);

ret = btrfs_delalloc_reserve_space(inode,
- start_index << PAGE_CACHE_SHIFT,
- page_cnt << PAGE_CACHE_SHIFT);
+ start_index << PAGE_SHIFT,
+ page_cnt << PAGE_SHIFT);
if (ret)
return ret;
i_done = 0;
@@ -1150,7 +1150,7 @@ again:
break;

page_start = page_offset(page);
- page_end = page_start + PAGE_CACHE_SIZE - 1;
+ page_end = page_start + PAGE_SIZE - 1;
while (1) {
lock_extent_bits(tree, page_start, page_end,
&cached_state);
@@ -1171,7 +1171,7 @@ again:
*/
if (page->mapping != inode->i_mapping) {
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
goto again;
}
}
@@ -1181,7 +1181,7 @@ again:
lock_page(page);
if (!PageUptodate(page)) {
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
ret = -EIO;
break;
}
@@ -1189,7 +1189,7 @@ again:

if (page->mapping != inode->i_mapping) {
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
goto again;
}

@@ -1210,7 +1210,7 @@ again:
wait_on_page_writeback(pages[i]);

page_start = page_offset(pages[0]);
- page_end = page_offset(pages[i_done - 1]) + PAGE_CACHE_SIZE;
+ page_end = page_offset(pages[i_done - 1]) + PAGE_SIZE;

lock_extent_bits(&BTRFS_I(inode)->io_tree,
page_start, page_end - 1, &cached_state);
@@ -1224,8 +1224,8 @@ again:
BTRFS_I(inode)->outstanding_extents++;
spin_unlock(&BTRFS_I(inode)->lock);
btrfs_delalloc_release_space(inode,
- start_index << PAGE_CACHE_SHIFT,
- (page_cnt - i_done) << PAGE_CACHE_SHIFT);
+ start_index << PAGE_SHIFT,
+ (page_cnt - i_done) << PAGE_SHIFT);
}

@@ -1242,17 +1242,17 @@ again:
set_page_extent_mapped(pages[i]);
set_page_dirty(pages[i]);
unlock_page(pages[i]);
- page_cache_release(pages[i]);
+ put_page(pages[i]);
}
return i_done;
out:
for (i = 0; i < i_done; i++) {
unlock_page(pages[i]);
- page_cache_release(pages[i]);
+ put_page(pages[i]);
}
btrfs_delalloc_release_space(inode,
- start_index << PAGE_CACHE_SHIFT,
- page_cnt << PAGE_CACHE_SHIFT);
+ start_index << PAGE_SHIFT,
+ page_cnt << PAGE_SHIFT);
return ret;

}
@@ -1275,7 +1275,7 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
int defrag_count = 0;
int compress_type = BTRFS_COMPRESS_ZLIB;
u32 extent_thresh = range->extent_thresh;
- unsigned long max_cluster = SZ_256K >> PAGE_CACHE_SHIFT;
+ unsigned long max_cluster = SZ_256K >> PAGE_SHIFT;
unsigned long cluster = max_cluster;
u64 new_align = ~((u64)SZ_128K - 1);
struct page **pages = NULL;
@@ -1319,9 +1319,9 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
/* find the last page to defrag */
if (range->start + range->len > range->start) {
last_index = min_t(u64, isize - 1,
- range->start + range->len - 1) >> PAGE_CACHE_SHIFT;
+ range->start + range->len - 1) >> PAGE_SHIFT;
} else {
- last_index = (isize - 1) >> PAGE_CACHE_SHIFT;
+ last_index = (isize - 1) >> PAGE_SHIFT;
}

if (newer_than) {
@@ -1333,11 +1333,11 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
* we always align our defrag to help keep
* the extents in the file evenly spaced
*/
- i = (newer_off & new_align) >> PAGE_CACHE_SHIFT;
+ i = (newer_off & new_align) >> PAGE_SHIFT;
} else
goto out_ra;
} else {
- i = range->start >> PAGE_CACHE_SHIFT;
+ i = range->start >> PAGE_SHIFT;
}
if (!max_to_defrag)
max_to_defrag = last_index - i + 1;
@@ -1350,7 +1350,7 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
inode->i_mapping->writeback_index = i;

while (i <= last_index && defrag_count < max_to_defrag &&
- (i < DIV_ROUND_UP(i_size_read(inode), PAGE_CACHE_SIZE))) {
+ (i < DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE))) {
/*
* make sure we stop running if someone unmounts
* the FS
@@ -1364,7 +1364,7 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
break;
}

- if (!should_defrag_range(inode, (u64)i << PAGE_CACHE_SHIFT,
+ if (!should_defrag_range(inode, (u64)i << PAGE_SHIFT,
extent_thresh, &last_len, &skip,
&defrag_end, range->flags &
BTRFS_DEFRAG_RANGE_COMPRESS)) {
@@ -1373,14 +1373,14 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
* the should_defrag function tells us how much to skip
* bump our counter by the suggested amount
*/
- next = DIV_ROUND_UP(skip, PAGE_CACHE_SIZE);
+ next = DIV_ROUND_UP(skip, PAGE_SIZE);
i = max(i + 1, next);
continue;
}

if (!newer_than) {
- cluster = (PAGE_CACHE_ALIGN(defrag_end) >>
- PAGE_CACHE_SHIFT) - i;
+ cluster = (PAGE_ALIGN(defrag_end) >>
+ PAGE_SHIFT) - i;
cluster = min(cluster, max_cluster);
} else {
cluster = max_cluster;
@@ -1414,20 +1414,20 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
i += ret;

newer_off = max(newer_off + 1,
- (u64)i << PAGE_CACHE_SHIFT);
+ (u64)i << PAGE_SHIFT);

ret = find_new_extents(root, inode, newer_than,
&newer_off, SZ_64K);
if (!ret) {
range->start = newer_off;
- i = (newer_off & new_align) >> PAGE_CACHE_SHIFT;
+ i = (newer_off & new_align) >> PAGE_SHIFT;
} else {
break;
}
} else {
if (ret > 0) {
i += ret;
- last_len += ret << PAGE_CACHE_SHIFT;
+ last_len += ret << PAGE_SHIFT;
} else {
i++;
last_len = 0;
@@ -1724,7 +1724,7 @@ static noinline int btrfs_ioctl_snap_create_v2(struct file *file,
if (vol_args->flags & BTRFS_SUBVOL_RDONLY)
readonly = true;
if (vol_args->flags & BTRFS_SUBVOL_QGROUP_INHERIT) {
- if (vol_args->size > PAGE_CACHE_SIZE) {
+ if (vol_args->size > PAGE_SIZE) {
ret = -EINVAL;
goto free_args;
}
@@ -2808,12 +2808,12 @@ static struct page *extent_same_get_page(struct inode *inode, pgoff_t index)
lock_page(page);
if (!PageUptodate(page)) {
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
return ERR_PTR(-EIO);
}
if (page->mapping != inode->i_mapping) {
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
return ERR_PTR(-EAGAIN);
}
}
@@ -2825,7 +2825,7 @@ static int gather_extent_pages(struct inode *inode, struct page **pages,
int num_pages, u64 off)
{
int i;
- pgoff_t index = off >> PAGE_CACHE_SHIFT;
+ pgoff_t index = off >> PAGE_SHIFT;

for (i = 0; i < num_pages; i++) {
again:
@@ -2934,12 +2934,12 @@ static void btrfs_cmp_data_free(struct cmp_pages *cmp)
pg = cmp->src_pages[i];
if (pg) {
unlock_page(pg);
- page_cache_release(pg);
+ put_page(pg);
}
pg = cmp->dst_pages[i];
if (pg) {
unlock_page(pg);
- page_cache_release(pg);
+ put_page(pg);
}
}
kfree(cmp->src_pages);
@@ -2951,7 +2951,7 @@ static int btrfs_cmp_data_prepare(struct inode *src, u64 loff,
u64 len, struct cmp_pages *cmp)
{
int ret;
- int num_pages = PAGE_CACHE_ALIGN(len) >> PAGE_CACHE_SHIFT;
+ int num_pages = PAGE_ALIGN(len) >> PAGE_SHIFT;
struct page **src_pgarr, **dst_pgarr;

/*
@@ -2989,12 +2989,12 @@ static int btrfs_cmp_data(struct inode *src, u64 loff, struct inode *dst,
int ret = 0;
int i;
struct page *src_page, *dst_page;
- unsigned int cmp_len = PAGE_CACHE_SIZE;
+ unsigned int cmp_len = PAGE_SIZE;
void *addr, *dst_addr;

i = 0;
while (len) {
- if (len < PAGE_CACHE_SIZE)
+ if (len < PAGE_SIZE)
cmp_len = len;

BUG_ON(i >= cmp->num_pages);
@@ -3190,7 +3190,7 @@ ssize_t btrfs_dedupe_file_range(struct file *src_file, u64 loff, u64 olen,
if (olen > BTRFS_MAX_DEDUPE_LEN)
olen = BTRFS_MAX_DEDUPE_LEN;

- if (WARN_ON_ONCE(bs < PAGE_CACHE_SIZE)) {
+ if (WARN_ON_ONCE(bs < PAGE_SIZE)) {
/*
* Btrfs does not support blocksize < page_size. As a
* result, btrfs_cmp_data() won't correctly handle
@@ -3890,7 +3890,7 @@ static noinline int btrfs_clone_files(struct file *file, struct file *file_src,
* data immediately and not the previous data.
*/
truncate_inode_pages_range(&inode->i_data, destoff,
- PAGE_CACHE_ALIGN(destoff + len) - 1);
+ PAGE_ALIGN(destoff + len) - 1);
out_unlock:
if (!same_inode)
btrfs_double_inode_unlock(src, inode);
@@ -4122,7 +4122,7 @@ static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
/* we generally have at most 6 or so space infos, one for each raid
* level. So, a whole page should be more than enough for everyone
*/
- if (alloc_size > PAGE_CACHE_SIZE)
+ if (alloc_size > PAGE_SIZE)
return -ENOMEM;

space_args.total_spaces = 0;
diff --git a/fs/btrfs/lzo.c b/fs/btrfs/lzo.c
index a2f051347731..1adfbe7be6b8 100644
--- a/fs/btrfs/lzo.c
+++ b/fs/btrfs/lzo.c
@@ -55,8 +55,8 @@ static struct list_head *lzo_alloc_workspace(void)
return ERR_PTR(-ENOMEM);

workspace->mem = vmalloc(LZO1X_MEM_COMPRESS);
- workspace->buf = vmalloc(lzo1x_worst_compress(PAGE_CACHE_SIZE));
- workspace->cbuf = vmalloc(lzo1x_worst_compress(PAGE_CACHE_SIZE));
+ workspace->buf = vmalloc(lzo1x_worst_compress(PAGE_SIZE));
+ workspace->cbuf = vmalloc(lzo1x_worst_compress(PAGE_SIZE));
if (!workspace->mem || !workspace->buf || !workspace->cbuf)
goto fail;

@@ -116,7 +116,7 @@ static int lzo_compress_pages(struct list_head *ws,
*total_out = 0;
*total_in = 0;

- in_page = find_get_page(mapping, start >> PAGE_CACHE_SHIFT);
+ in_page = find_get_page(mapping, start >> PAGE_SHIFT);
data_in = kmap(in_page);

/*
@@ -133,10 +133,10 @@ static int lzo_compress_pages(struct list_head *ws,
tot_out = LZO_LEN;
pages[0] = out_page;
nr_pages = 1;
- pg_bytes_left = PAGE_CACHE_SIZE - LZO_LEN;
+ pg_bytes_left = PAGE_SIZE - LZO_LEN;

/* compress at most one page of data each time */
- in_len = min(len, PAGE_CACHE_SIZE);
+ in_len = min(len, PAGE_SIZE);
while (tot_in < len) {
ret = lzo1x_1_compress(data_in, in_len, workspace->cbuf,
&out_len, workspace->mem);
@@ -201,7 +201,7 @@ static int lzo_compress_pages(struct list_head *ws,
cpage_out = kmap(out_page);
pages[nr_pages++] = out_page;

- pg_bytes_left = PAGE_CACHE_SIZE;
+ pg_bytes_left = PAGE_SIZE;
out_offset = 0;
}
}
@@ -221,12 +221,12 @@ static int lzo_compress_pages(struct list_head *ws,

bytes_left = len - tot_in;
kunmap(in_page);
- page_cache_release(in_page);
+ put_page(in_page);

- start += PAGE_CACHE_SIZE;
- in_page = find_get_page(mapping, start >> PAGE_CACHE_SHIFT);
+ start += PAGE_SIZE;
+ in_page = find_get_page(mapping, start >> PAGE_SHIFT);
data_in = kmap(in_page);
- in_len = min(bytes_left, PAGE_CACHE_SIZE);
+ in_len = min(bytes_left, PAGE_SIZE);
}

if (tot_out > tot_in)
@@ -248,7 +248,7 @@ out:

if (in_page) {
kunmap(in_page);
- page_cache_release(in_page);
+ put_page(in_page);
}

return ret;
@@ -266,7 +266,7 @@ static int lzo_decompress_biovec(struct list_head *ws,
char *data_in;
unsigned long page_in_index = 0;
unsigned long page_out_index = 0;
- unsigned long total_pages_in = DIV_ROUND_UP(srclen, PAGE_CACHE_SIZE);
+ unsigned long total_pages_in = DIV_ROUND_UP(srclen, PAGE_SIZE);
unsigned long buf_start;
unsigned long buf_offset = 0;
unsigned long bytes;
@@ -289,7 +289,7 @@ static int lzo_decompress_biovec(struct list_head *ws,
tot_in = LZO_LEN;
in_offset = LZO_LEN;
tot_len = min_t(size_t, srclen, tot_len);
- in_page_bytes_left = PAGE_CACHE_SIZE - LZO_LEN;
+ in_page_bytes_left = PAGE_SIZE - LZO_LEN;

tot_out = 0;
pg_offset = 0;
@@ -345,12 +345,12 @@ cont:

data_in = kmap(pages_in[++page_in_index]);

- in_page_bytes_left = PAGE_CACHE_SIZE;
+ in_page_bytes_left = PAGE_SIZE;
in_offset = 0;
}
}

- out_len = lzo1x_worst_compress(PAGE_CACHE_SIZE);
+ out_len = lzo1x_worst_compress(PAGE_SIZE);
ret = lzo1x_decompress_safe(buf, in_len, workspace->buf,
&out_len);
if (need_unmap)
@@ -399,7 +399,7 @@ static int lzo_decompress(struct list_head *ws, unsigned char *data_in,
in_len = read_compress_length(data_in);
data_in += LZO_LEN;

- out_len = PAGE_CACHE_SIZE;
+ out_len = PAGE_SIZE;
ret = lzo1x_decompress_safe(data_in, in_len, workspace->buf, &out_len);
if (ret != LZO_E_OK) {
printk(KERN_WARNING "BTRFS: decompress failed!\n");
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 55161369fab1..0b7792e02dd5 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -270,7 +270,7 @@ static void cache_rbio_pages(struct btrfs_raid_bio *rbio)
s = kmap(rbio->bio_pages[i]);
d = kmap(rbio->stripe_pages[i]);

- memcpy(d, s, PAGE_CACHE_SIZE);
+ memcpy(d, s, PAGE_SIZE);

kunmap(rbio->bio_pages[i]);
kunmap(rbio->stripe_pages[i]);
@@ -962,7 +962,7 @@ static struct page *page_in_rbio(struct btrfs_raid_bio *rbio,
*/
static unsigned long rbio_nr_pages(unsigned long stripe_len, int nr_stripes)
{
- return DIV_ROUND_UP(stripe_len, PAGE_CACHE_SIZE) * nr_stripes;
+ return DIV_ROUND_UP(stripe_len, PAGE_SIZE) * nr_stripes;
}

/*
@@ -1078,7 +1078,7 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio,
u64 disk_start;

stripe = &rbio->bbio->stripes[stripe_nr];
- disk_start = stripe->physical + (page_index << PAGE_CACHE_SHIFT);
+ disk_start = stripe->physical + (page_index << PAGE_SHIFT);

/* if the device is missing, just fail this stripe */
if (!stripe->dev->bdev)
@@ -1096,8 +1096,8 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio,
if (last_end == disk_start && stripe->dev->bdev &&
!last->bi_error &&
last->bi_bdev == stripe->dev->bdev) {
- ret = bio_add_page(last, page, PAGE_CACHE_SIZE, 0);
- if (ret == PAGE_CACHE_SIZE)
+ ret = bio_add_page(last, page, PAGE_SIZE, 0);
+ if (ret == PAGE_SIZE)
return 0;
}
}
@@ -1111,7 +1111,7 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio,
bio->bi_bdev = stripe->dev->bdev;
bio->bi_iter.bi_sector = disk_start >> 9;

- bio_add_page(bio, page, PAGE_CACHE_SIZE, 0);
+ bio_add_page(bio, page, PAGE_SIZE, 0);
bio_list_add(bio_list, bio);
return 0;
}
@@ -1154,7 +1154,7 @@ static void index_rbio_pages(struct btrfs_raid_bio *rbio)
bio_list_for_each(bio, &rbio->bio_list) {
start = (u64)bio->bi_iter.bi_sector << 9;
stripe_offset = start - rbio->bbio->raid_map[0];
- page_index = stripe_offset >> PAGE_CACHE_SHIFT;
+ page_index = stripe_offset >> PAGE_SHIFT;

for (i = 0; i < bio->bi_vcnt; i++) {
p = bio->bi_io_vec[i].bv_page;
@@ -1253,7 +1253,7 @@ static noinline void finish_rmw(struct btrfs_raid_bio *rbio)
} else {
/* raid5 */
memcpy(pointers[nr_data], pointers[0], PAGE_SIZE);
- run_xor(pointers + 1, nr_data - 1, PAGE_CACHE_SIZE);
+ run_xor(pointers + 1, nr_data - 1, PAGE_SIZE);
}

@@ -1914,7 +1914,7 @@ pstripe:
/* Copy parity block into failed block to start with */
memcpy(pointers[faila],
pointers[rbio->nr_data],
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);

/* rearrange the pointer array */
p = pointers[faila];
@@ -1923,7 +1923,7 @@ pstripe:
pointers[rbio->nr_data - 1] = p;

/* xor in the rest */
- run_xor(pointers, rbio->nr_data - 1, PAGE_CACHE_SIZE);
+ run_xor(pointers, rbio->nr_data - 1, PAGE_SIZE);
}
/* if we're doing this rebuild as part of an rmw, go through
* and set all of our private rbio pages in the
@@ -2250,7 +2250,7 @@ void raid56_add_scrub_pages(struct btrfs_raid_bio *rbio, struct page *page,
ASSERT(logical + PAGE_SIZE <= rbio->bbio->raid_map[0] +
rbio->stripe_len * rbio->nr_data);
stripe_offset = (int)(logical - rbio->bbio->raid_map[0]);
- index = stripe_offset >> PAGE_CACHE_SHIFT;
+ index = stripe_offset >> PAGE_SHIFT;
rbio->bio_pages[index] = page;
}

@@ -2365,14 +2365,14 @@ static noinline void finish_parity_scrub(struct btrfs_raid_bio *rbio,
} else {
/* raid5 */
memcpy(pointers[nr_data], pointers[0], PAGE_SIZE);
- run_xor(pointers + 1, nr_data - 1, PAGE_CACHE_SIZE);
+ run_xor(pointers + 1, nr_data - 1, PAGE_SIZE);
}

/* Check scrubbing pairty and repair it */
p = rbio_stripe_page(rbio, rbio->scrubp, pagenr);
parity = kmap(p);
- if (memcmp(parity, pointers[rbio->scrubp], PAGE_CACHE_SIZE))
- memcpy(parity, pointers[rbio->scrubp], PAGE_CACHE_SIZE);
+ if (memcmp(parity, pointers[rbio->scrubp], PAGE_SIZE))
+ memcpy(parity, pointers[rbio->scrubp], PAGE_SIZE);
else
/* Parity is right, needn't writeback */
bitmap_clear(rbio->dbitmap, pagenr, 1);
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index 619f92963e27..bacc55e2655b 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -116,7 +116,7 @@ static int __readahead_hook(struct btrfs_root *root, struct extent_buffer *eb,
struct reada_extent *re;
struct btrfs_fs_info *fs_info = root->fs_info;
struct list_head list;
- unsigned long index = start >> PAGE_CACHE_SHIFT;
+ unsigned long index = start >> PAGE_SHIFT;
struct btrfs_device *for_dev;

if (eb)
@@ -259,7 +259,7 @@ static struct reada_zone *reada_find_zone(struct btrfs_fs_info *fs_info,
zone = NULL;
spin_lock(&fs_info->reada_lock);
ret = radix_tree_gang_lookup(&dev->reada_zones, (void **)&zone,
- logical >> PAGE_CACHE_SHIFT, 1);
+ logical >> PAGE_SHIFT, 1);
if (ret == 1)
kref_get(&zone->refcnt);
spin_unlock(&fs_info->reada_lock);
@@ -300,13 +300,13 @@ static struct reada_zone *reada_find_zone(struct btrfs_fs_info *fs_info,

spin_lock(&fs_info->reada_lock);
ret = radix_tree_insert(&dev->reada_zones,
- (unsigned long)(zone->end >> PAGE_CACHE_SHIFT),
+ (unsigned long)(zone->end >> PAGE_SHIFT),
zone);

if (ret == -EEXIST) {
kfree(zone);
ret = radix_tree_gang_lookup(&dev->reada_zones, (void **)&zone,
- logical >> PAGE_CACHE_SHIFT, 1);
+ logical >> PAGE_SHIFT, 1);
if (ret == 1)
kref_get(&zone->refcnt);
}
@@ -331,7 +331,7 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root,
int real_stripes;
int nzones = 0;
int i;
- unsigned long index = logical >> PAGE_CACHE_SHIFT;
+ unsigned long index = logical >> PAGE_SHIFT;
int dev_replace_is_ongoing;

spin_lock(&fs_info->reada_lock);
@@ -497,7 +497,7 @@ static void reada_extent_put(struct btrfs_fs_info *fs_info,
struct reada_extent *re)
{
int i;
- unsigned long index = re->logical >> PAGE_CACHE_SHIFT;
+ unsigned long index = re->logical >> PAGE_SHIFT;

spin_lock(&fs_info->reada_lock);
if (--re->refcnt) {
@@ -542,7 +542,7 @@ static void reada_zone_release(struct kref *kref)
struct reada_zone *zone = container_of(kref, struct reada_zone, refcnt);

radix_tree_delete(&zone->device->reada_zones,
- zone->end >> PAGE_CACHE_SHIFT);
+ zone->end >> PAGE_SHIFT);

kfree(zone);
}
@@ -591,7 +591,7 @@ static int reada_add_block(struct reada_control *rc, u64 logical,
static void reada_peer_zones_set_lock(struct reada_zone *zone, int lock)
{
int i;
- unsigned long index = zone->end >> PAGE_CACHE_SHIFT;
+ unsigned long index = zone->end >> PAGE_SHIFT;

for (i = 0; i < zone->ndevs; ++i) {
struct reada_zone *peer;
@@ -626,7 +626,7 @@ static int reada_pick_zone(struct btrfs_device *dev)
(void **)&zone, index, 1);
if (ret == 0)
break;
- index = (zone->end >> PAGE_CACHE_SHIFT) + 1;
+ index = (zone->end >> PAGE_SHIFT) + 1;
if (zone->locked) {
if (zone->elems > top_locked_elems) {
top_locked_elems = zone->elems;
@@ -678,7 +678,7 @@ static int reada_start_machine_dev(struct btrfs_fs_info *fs_info,
* plugging to speed things up
*/
ret = radix_tree_gang_lookup(&dev->reada_extents, (void **)&re,
- dev->reada_next >> PAGE_CACHE_SHIFT, 1);
+ dev->reada_next >> PAGE_SHIFT, 1);
if (ret == 0 || re->logical >= dev->reada_curr_zone->end) {
ret = reada_pick_zone(dev);
if (!ret) {
@@ -687,7 +687,7 @@ static int reada_start_machine_dev(struct btrfs_fs_info *fs_info,
}
re = NULL;
ret = radix_tree_gang_lookup(&dev->reada_extents, (void **)&re,
- dev->reada_next >> PAGE_CACHE_SHIFT, 1);
+ dev->reada_next >> PAGE_SHIFT, 1);
}
if (ret == 0) {
spin_unlock(&fs_info->reada_lock);
@@ -836,7 +836,7 @@ static void dump_devs(struct btrfs_fs_info *fs_info, int all)
printk(KERN_CONT " curr off %llu",
device->reada_next - zone->start);
printk(KERN_CONT "\n");
- index = (zone->end >> PAGE_CACHE_SHIFT) + 1;
+ index = (zone->end >> PAGE_SHIFT) + 1;
}
cnt = 0;
index = 0;
@@ -863,7 +863,7 @@ static void dump_devs(struct btrfs_fs_info *fs_info, int all)
}
}
printk(KERN_CONT "\n");
- index = (re->logical >> PAGE_CACHE_SHIFT) + 1;
+ index = (re->logical >> PAGE_SHIFT) + 1;
if (++cnt > 15)
break;
}
@@ -879,7 +879,7 @@ static void dump_devs(struct btrfs_fs_info *fs_info, int all)
if (ret == 0)
break;
if (!re->scheduled_for) {
- index = (re->logical >> PAGE_CACHE_SHIFT) + 1;
+ index = (re->logical >> PAGE_SHIFT) + 1;
continue;
}
printk(KERN_DEBUG
@@ -902,7 +902,7 @@ static void dump_devs(struct btrfs_fs_info *fs_info, int all)
}
}
printk(KERN_CONT "\n");
- index = (re->logical >> PAGE_CACHE_SHIFT) + 1;
+ index = (re->logical >> PAGE_SHIFT) + 1;
}
spin_unlock(&fs_info->reada_lock);
}
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 2bd0011450df..3c93968b539d 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3129,10 +3129,10 @@ static int relocate_file_extent_cluster(struct inode *inode,
if (ret)
goto out;

- index = (cluster->start - offset) >> PAGE_CACHE_SHIFT;
- last_index = (cluster->end - offset) >> PAGE_CACHE_SHIFT;
+ index = (cluster->start - offset) >> PAGE_SHIFT;
+ last_index = (cluster->end - offset) >> PAGE_SHIFT;
while (index <= last_index) {
- ret = btrfs_delalloc_reserve_metadata(inode, PAGE_CACHE_SIZE);
+ ret = btrfs_delalloc_reserve_metadata(inode, PAGE_SIZE);
if (ret)
goto out;

@@ -3145,7 +3145,7 @@ static int relocate_file_extent_cluster(struct inode *inode,
mask);
if (!page) {
btrfs_delalloc_release_metadata(inode,
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);
ret = -ENOMEM;
goto out;
}
@@ -3162,16 +3162,16 @@ static int relocate_file_extent_cluster(struct inode *inode,
lock_page(page);
if (!PageUptodate(page)) {
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
btrfs_delalloc_release_metadata(inode,
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);
ret = -EIO;
goto out;
}
}

page_start = page_offset(page);
- page_end = page_start + PAGE_CACHE_SIZE - 1;
+ page_end = page_start + PAGE_SIZE - 1;

lock_extent(&BTRFS_I(inode)->io_tree, page_start, page_end);

@@ -3191,7 +3191,7 @@ static int relocate_file_extent_cluster(struct inode *inode,
unlock_extent(&BTRFS_I(inode)->io_tree,
page_start, page_end);
unlock_page(page);
- page_cache_release(page);
+ put_page(page);

index++;
balance_dirty_pages_ratelimited(inode->i_mapping);
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 92bf5ee732fb..1c6d3267029f 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -703,7 +703,7 @@ static int scrub_fixup_readpage(u64 inum, u64 offset, u64 root, void *fixup_ctx)
if (IS_ERR(inode))
return PTR_ERR(inode);

- index = offset >> PAGE_CACHE_SHIFT;
+ index = offset >> PAGE_SHIFT;

page = find_or_create_page(inode->i_mapping, index, GFP_NOFS);
if (!page) {
@@ -1636,7 +1636,7 @@ static int scrub_write_page_to_dev_replace(struct scrub_block *sblock,
if (spage->io_error) {
void *mapped_buffer = kmap_atomic(spage->page);

- memset(mapped_buffer, 0, PAGE_CACHE_SIZE);
+ memset(mapped_buffer, 0, PAGE_SIZE);
flush_dcache_page(spage->page);
kunmap_atomic(mapped_buffer);
}
@@ -4292,8 +4292,8 @@ static int copy_nocow_pages_for_inode(u64 inum, u64 offset, u64 root,
goto out;
}

- while (len >= PAGE_CACHE_SIZE) {
- index = offset >> PAGE_CACHE_SHIFT;
+ while (len >= PAGE_SIZE) {
+ index = offset >> PAGE_SHIFT;
again:
page = find_or_create_page(inode->i_mapping, index, GFP_NOFS);
if (!page) {
@@ -4324,7 +4324,7 @@ again:
*/
if (page->mapping != inode->i_mapping) {
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
goto again;
}
if (!PageUptodate(page)) {
@@ -4346,15 +4346,15 @@ again:
ret = err;
next_page:
unlock_page(page);
- page_cache_release(page);
+ put_page(page);

if (ret)
break;

- offset += PAGE_CACHE_SIZE;
- physical_for_dev_replace += PAGE_CACHE_SIZE;
- nocow_ctx_logical += PAGE_CACHE_SIZE;
- len -= PAGE_CACHE_SIZE;
+ offset += PAGE_SIZE;
+ physical_for_dev_replace += PAGE_SIZE;
+ nocow_ctx_logical += PAGE_SIZE;
+ len -= PAGE_SIZE;
}
ret = COPY_COMPLETE;
out:
@@ -4388,8 +4388,8 @@ static int write_page_nocow(struct scrub_ctx *sctx,
bio->bi_iter.bi_size = 0;
bio->bi_iter.bi_sector = physical_for_dev_replace >> 9;
bio->bi_bdev = dev->bdev;
- ret = bio_add_page(bio, page, PAGE_CACHE_SIZE, 0);
- if (ret != PAGE_CACHE_SIZE) {
+ ret = bio_add_page(bio, page, PAGE_SIZE, 0);
+ if (ret != PAGE_SIZE) {
leave_with_eio:
bio_put(bio);
btrfs_dev_stat_inc_and_print(dev, BTRFS_DEV_STAT_WRITE_ERRS);
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 63a6152be04b..f5b875c8c2d8 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -4448,9 +4448,9 @@ static ssize_t fill_read_buf(struct send_ctx *sctx, u64 offset, u32 len)
struct page *page;
char *addr;
struct btrfs_key key;
- pgoff_t index = offset >> PAGE_CACHE_SHIFT;
+ pgoff_t index = offset >> PAGE_SHIFT;
pgoff_t last_index;
- unsigned pg_offset = offset & ~PAGE_CACHE_MASK;
+ unsigned pg_offset = offset & ~PAGE_MASK;
ssize_t ret = 0;

key.objectid = sctx->cur_ino;
@@ -4470,7 +4470,7 @@ static ssize_t fill_read_buf(struct send_ctx *sctx, u64 offset, u32 len)
if (len == 0)
goto out;

- last_index = (offset + len - 1) >> PAGE_CACHE_SHIFT;
+ last_index = (offset + len - 1) >> PAGE_SHIFT;

/* initial readahead */
memset(&sctx->ra, 0, sizeof(struct file_ra_state));
@@ -4480,7 +4480,7 @@ static ssize_t fill_read_buf(struct send_ctx *sctx, u64 offset, u32 len)

while (index <= last_index) {
unsigned cur_len = min_t(unsigned, len,
- PAGE_CACHE_SIZE - pg_offset);
+ PAGE_SIZE - pg_offset);
page = find_or_create_page(inode->i_mapping, index, GFP_NOFS);
if (!page) {
ret = -ENOMEM;
@@ -4492,7 +4492,7 @@ static ssize_t fill_read_buf(struct send_ctx *sctx, u64 offset, u32 len)
lock_page(page);
if (!PageUptodate(page)) {
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
ret = -EIO;
break;
}
@@ -4502,7 +4502,7 @@ static ssize_t fill_read_buf(struct send_ctx *sctx, u64 offset, u32 len)
memcpy(sctx->read_buf + ret, addr + pg_offset, cur_len);
kunmap(page);
unlock_page(page);
- page_cache_release(page);
+ put_page(page);
index++;
pg_offset = 0;
len -= cur_len;
@@ -4803,7 +4803,7 @@ static int clone_range(struct send_ctx *sctx,
type = btrfs_file_extent_type(leaf, ei);
if (type == BTRFS_FILE_EXTENT_INLINE) {
ext_len = btrfs_file_extent_inline_len(leaf, slot, ei);
- ext_len = PAGE_CACHE_ALIGN(ext_len);
+ ext_len = PAGE_ALIGN(ext_len);
} else {
ext_len = btrfs_file_extent_num_bytes(leaf, ei);
}
@@ -4885,7 +4885,7 @@ static int send_write_or_clone(struct send_ctx *sctx,
* but there may be items after this page. Make
* sure to send the whole thing
*/
- len = PAGE_CACHE_ALIGN(len);
+ len = PAGE_ALIGN(len);
} else {
len = btrfs_file_extent_num_bytes(path->nodes[0], ei);
}
diff --git a/fs/btrfs/struct-funcs.c b/fs/btrfs/struct-funcs.c
index b976597b0721..42752e5ead15 100644
--- a/fs/btrfs/struct-funcs.c
+++ b/fs/btrfs/struct-funcs.c
@@ -66,7 +66,7 @@ u##bits btrfs_get_token_##bits(struct extent_buffer *eb, void *ptr, \
\
if (token && token->kaddr && token->offset <= offset && \
token->eb == eb && \
- (token->offset + PAGE_CACHE_SIZE >= offset + size)) { \
+ (token->offset + PAGE_SIZE >= offset + size)) { \
kaddr = token->kaddr; \
p = kaddr + part_offset - token->offset; \
res = get_unaligned_le##bits(p + off); \
@@ -104,7 +104,7 @@ void btrfs_set_token_##bits(struct extent_buffer *eb, \
\
if (token && token->kaddr && token->offset <= offset && \
token->eb == eb && \
- (token->offset + PAGE_CACHE_SIZE >= offset + size)) { \
+ (token->offset + PAGE_SIZE >= offset + size)) { \
kaddr = token->kaddr; \
p = kaddr + part_offset - token->offset; \
put_unaligned_le##bits(val, p + off); \
diff --git a/fs/btrfs/tests/extent-io-tests.c b/fs/btrfs/tests/extent-io-tests.c
index 669b58201e36..70948b13bc81 100644
--- a/fs/btrfs/tests/extent-io-tests.c
+++ b/fs/btrfs/tests/extent-io-tests.c
@@ -32,8 +32,8 @@ static noinline int process_page_range(struct inode *inode, u64 start, u64 end,
{
int ret;
struct page *pages[16];
- unsigned long index = start >> PAGE_CACHE_SHIFT;
- unsigned long end_index = end >> PAGE_CACHE_SHIFT;
+ unsigned long index = start >> PAGE_SHIFT;
+ unsigned long end_index = end >> PAGE_SHIFT;
unsigned long nr_pages = end_index - index + 1;
int i;
int count = 0;
@@ -49,9 +49,9 @@ static noinline int process_page_range(struct inode *inode, u64 start, u64 end,
count++;
if (flags & PROCESS_UNLOCK && PageLocked(pages[i]))
unlock_page(pages[i]);
- page_cache_release(pages[i]);
+ put_page(pages[i]);
if (flags & PROCESS_RELEASE)
- page_cache_release(pages[i]);
+ put_page(pages[i]);
}
nr_pages -= ret;
index += ret;
@@ -93,7 +93,7 @@ static int test_find_delalloc(void)
* everything to make sure our pages don't get evicted and screw up our
* test.
*/
- for (index = 0; index < (total_dirty >> PAGE_CACHE_SHIFT); index++) {
+ for (index = 0; index < (total_dirty >> PAGE_SHIFT); index++) {
page = find_or_create_page(inode->i_mapping, index, GFP_KERNEL);
if (!page) {
test_msg("Failed to allocate test page\n");
@@ -104,7 +104,7 @@ static int test_find_delalloc(void)
if (index) {
unlock_page(page);
} else {
- page_cache_get(page);
+ get_page(page);
locked_page = page;
}
}
@@ -129,7 +129,7 @@ static int test_find_delalloc(void)
}
unlock_extent(&tmp, start, end);
unlock_page(locked_page);
- page_cache_release(locked_page);
+ put_page(locked_page);

/*
* Test this scenario
@@ -139,7 +139,7 @@ static int test_find_delalloc(void)
*/
test_start = SZ_64M;
locked_page = find_lock_page(inode->i_mapping,
- test_start >> PAGE_CACHE_SHIFT);
+ test_start >> PAGE_SHIFT);
if (!locked_page) {
test_msg("Couldn't find the locked page\n");
goto out_bits;
@@ -165,7 +165,7 @@ static int test_find_delalloc(void)
}
unlock_extent(&tmp, start, end);
/* locked_page was unlocked above */
- page_cache_release(locked_page);
+ put_page(locked_page);

/*
* Test this scenario
@@ -174,7 +174,7 @@ static int test_find_delalloc(void)
*/
test_start = max_bytes + 4096;
locked_page = find_lock_page(inode->i_mapping, test_start >>
- PAGE_CACHE_SHIFT);
+ PAGE_SHIFT);
if (!locked_page) {
test_msg("Could'nt find the locked page\n");
goto out_bits;
@@ -225,13 +225,13 @@ static int test_find_delalloc(void)
* range we want to find.
*/
page = find_get_page(inode->i_mapping,
- (max_bytes + SZ_1M) >> PAGE_CACHE_SHIFT);
+ (max_bytes + SZ_1M) >> PAGE_SHIFT);
if (!page) {
test_msg("Couldn't find our page\n");
goto out_bits;
}
ClearPageDirty(page);
- page_cache_release(page);
+ put_page(page);

/* We unlocked it in the previous test */
lock_page(locked_page);
@@ -239,7 +239,7 @@ static int test_find_delalloc(void)
end = 0;
/*
* Currently if we fail to find dirty pages in the delalloc range we
- * will adjust max_bytes down to PAGE_CACHE_SIZE and then re-search. If
+ * will adjust max_bytes down to PAGE_SIZE and then re-search. If
* this changes at any point in the future we will need to fix this
* tests expected behavior.
*/
@@ -249,9 +249,9 @@ static int test_find_delalloc(void)
test_msg("Didn't find our range\n");
goto out_bits;
}
- if (start != test_start && end != test_start + PAGE_CACHE_SIZE - 1) {
+ if (start != test_start && end != test_start + PAGE_SIZE - 1) {
test_msg("Expected start %Lu end %Lu, got start %Lu end %Lu\n",
- test_start, test_start + PAGE_CACHE_SIZE - 1, start,
+ test_start, test_start + PAGE_SIZE - 1, start,
end);
goto out_bits;
}
@@ -265,7 +265,7 @@ out_bits:
clear_extent_bits(&tmp, 0, total_dirty - 1, (unsigned)-1, GFP_KERNEL);
out:
if (locked_page)
- page_cache_release(locked_page);
+ put_page(locked_page);
process_page_range(inode, 0, total_dirty - 1,
PROCESS_UNLOCK | PROCESS_RELEASE);
iput(inode);
@@ -298,9 +298,9 @@ static int __test_eb_bitmaps(unsigned long *bitmap, struct extent_buffer *eb,
return -EINVAL;
}

- bitmap_set(bitmap, (PAGE_CACHE_SIZE - sizeof(long) / 2) * BITS_PER_BYTE,
+ bitmap_set(bitmap, (PAGE_SIZE - sizeof(long) / 2) * BITS_PER_BYTE,
sizeof(long) * BITS_PER_BYTE);
- extent_buffer_bitmap_set(eb, PAGE_CACHE_SIZE - sizeof(long) / 2, 0,
+ extent_buffer_bitmap_set(eb, PAGE_SIZE - sizeof(long) / 2, 0,
sizeof(long) * BITS_PER_BYTE);
if (memcmp_extent_buffer(eb, bitmap, 0, len) != 0) {
test_msg("Setting straddling pages failed\n");
@@ -309,10 +309,10 @@ static int __test_eb_bitmaps(unsigned long *bitmap, struct extent_buffer *eb,

bitmap_set(bitmap, 0, len * BITS_PER_BYTE);
bitmap_clear(bitmap,
- (PAGE_CACHE_SIZE - sizeof(long) / 2) * BITS_PER_BYTE,
+ (PAGE_SIZE - sizeof(long) / 2) * BITS_PER_BYTE,
sizeof(long) * BITS_PER_BYTE);
extent_buffer_bitmap_set(eb, 0, 0, len * BITS_PER_BYTE);
- extent_buffer_bitmap_clear(eb, PAGE_CACHE_SIZE - sizeof(long) / 2, 0,
+ extent_buffer_bitmap_clear(eb, PAGE_SIZE - sizeof(long) / 2, 0,
sizeof(long) * BITS_PER_BYTE);
if (memcmp_extent_buffer(eb, bitmap, 0, len) != 0) {
test_msg("Clearing straddling pages failed\n");
@@ -353,7 +353,7 @@ static int __test_eb_bitmaps(unsigned long *bitmap, struct extent_buffer *eb,

static int test_eb_bitmaps(void)
{
- unsigned long len = PAGE_CACHE_SIZE * 4;
+ unsigned long len = PAGE_SIZE * 4;
unsigned long *bitmap;
struct extent_buffer *eb;
int ret;
@@ -379,7 +379,7 @@ static int test_eb_bitmaps(void)

/* Do it over again with an extent buffer which isn't page-aligned. */
free_extent_buffer(eb);
- eb = __alloc_dummy_extent_buffer(NULL, PAGE_CACHE_SIZE / 2, len);
+ eb = __alloc_dummy_extent_buffer(NULL, PAGE_SIZE / 2, len);
if (!eb) {
test_msg("Couldn't allocate test extent buffer\n");
kfree(bitmap);
diff --git a/fs/btrfs/tests/free-space-tests.c b/fs/btrfs/tests/free-space-tests.c
index c9ad97b1e690..514247515312 100644
--- a/fs/btrfs/tests/free-space-tests.c
+++ b/fs/btrfs/tests/free-space-tests.c
@@ -22,7 +22,7 @@
#include "../disk-io.h"
#include "../free-space-cache.h"

-#define BITS_PER_BITMAP (PAGE_CACHE_SIZE * 8)
+#define BITS_PER_BITMAP (PAGE_SIZE * 8)

/*
* This test just does basic sanity checking, making sure we can add an exten
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 366b335946fa..eeb6da7976a5 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1024,16 +1024,16 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
}

/* make sure our super fits in the device */
- if (bytenr + PAGE_CACHE_SIZE >= i_size_read(bdev->bd_inode))
+ if (bytenr + PAGE_SIZE >= i_size_read(bdev->bd_inode))
goto error_bdev_put;

/* make sure our super fits in the page */
- if (sizeof(*disk_super) > PAGE_CACHE_SIZE)
+ if (sizeof(*disk_super) > PAGE_SIZE)
goto error_bdev_put;

/* make sure our super doesn't straddle pages on disk */
- index = bytenr >> PAGE_CACHE_SHIFT;
- if ((bytenr + sizeof(*disk_super) - 1) >> PAGE_CACHE_SHIFT != index)
+ index = bytenr >> PAGE_SHIFT;
+ if ((bytenr + sizeof(*disk_super) - 1) >> PAGE_SHIFT != index)
goto error_bdev_put;

/* pull in the page with our super */
@@ -1046,7 +1046,7 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
p = kmap(page);

/* align our pointer to the offset of the super block */
- disk_super = p + (bytenr & ~PAGE_CACHE_MASK);
+ disk_super = p + (bytenr & ~PAGE_MASK);

if (btrfs_super_bytenr(disk_super) != bytenr ||
btrfs_super_magic(disk_super) != BTRFS_MAGIC)
@@ -1074,7 +1074,7 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,

error_unmap:
kunmap(page);
- page_cache_release(page);
+ put_page(page);

error_bdev_put:
blkdev_put(bdev, flags);
@@ -6522,7 +6522,7 @@ int btrfs_read_sys_array(struct btrfs_root *root)
* but sb spans only this function. Add an explicit SetPageUptodate call
* to silence the warning eg. on PowerPC 64.
*/
- if (PAGE_CACHE_SIZE > BTRFS_SUPER_INFO_SIZE)
+ if (PAGE_SIZE > BTRFS_SUPER_INFO_SIZE)
SetPageUptodate(sb->pages[0]);

write_extent_buffer(sb, super_copy, 0, BTRFS_SUPER_INFO_SIZE);
diff --git a/fs/btrfs/zlib.c b/fs/btrfs/zlib.c
index 82990b8f872b..88d274e8ecf2 100644
--- a/fs/btrfs/zlib.c
+++ b/fs/btrfs/zlib.c
@@ -59,7 +59,7 @@ static struct list_head *zlib_alloc_workspace(void)
workspacesize = max(zlib_deflate_workspacesize(MAX_WBITS, MAX_MEM_LEVEL),
zlib_inflate_workspacesize());
workspace->strm.workspace = vmalloc(workspacesize);
- workspace->buf = kmalloc(PAGE_CACHE_SIZE, GFP_NOFS);
+ workspace->buf = kmalloc(PAGE_SIZE, GFP_NOFS);
if (!workspace->strm.workspace || !workspace->buf)
goto fail;

@@ -103,7 +103,7 @@ static int zlib_compress_pages(struct list_head *ws,
workspace->strm.total_in = 0;
workspace->strm.total_out = 0;

- in_page = find_get_page(mapping, start >> PAGE_CACHE_SHIFT);
+ in_page = find_get_page(mapping, start >> PAGE_SHIFT);
data_in = kmap(in_page);

out_page = alloc_page(GFP_NOFS | __GFP_HIGHMEM);
@@ -117,8 +117,8 @@ static int zlib_compress_pages(struct list_head *ws,

workspace->strm.next_in = data_in;
workspace->strm.next_out = cpage_out;
- workspace->strm.avail_out = PAGE_CACHE_SIZE;
- workspace->strm.avail_in = min(len, PAGE_CACHE_SIZE);
+ workspace->strm.avail_out = PAGE_SIZE;
+ workspace->strm.avail_in = min(len, PAGE_SIZE);

while (workspace->strm.total_in < len) {
ret = zlib_deflate(&workspace->strm, Z_SYNC_FLUSH);
@@ -156,7 +156,7 @@ static int zlib_compress_pages(struct list_head *ws,
cpage_out = kmap(out_page);
pages[nr_pages] = out_page;
nr_pages++;
- workspace->strm.avail_out = PAGE_CACHE_SIZE;
+ workspace->strm.avail_out = PAGE_SIZE;
workspace->strm.next_out = cpage_out;
}
/* we're all done */
@@ -170,14 +170,14 @@ static int zlib_compress_pages(struct list_head *ws,

bytes_left = len - workspace->strm.total_in;
kunmap(in_page);
- page_cache_release(in_page);
+ put_page(in_page);

- start += PAGE_CACHE_SIZE;
+ start += PAGE_SIZE;
in_page = find_get_page(mapping,
- start >> PAGE_CACHE_SHIFT);
+ start >> PAGE_SHIFT);
data_in = kmap(in_page);
workspace->strm.avail_in = min(bytes_left,
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);
workspace->strm.next_in = data_in;
}
}
@@ -205,7 +205,7 @@ out:

if (in_page) {
kunmap(in_page);
- page_cache_release(in_page);
+ put_page(in_page);
}
return ret;
}
@@ -223,18 +223,18 @@ static int zlib_decompress_biovec(struct list_head *ws, struct page **pages_in,
size_t total_out = 0;
unsigned long page_in_index = 0;
unsigned long page_out_index = 0;
- unsigned long total_pages_in = DIV_ROUND_UP(srclen, PAGE_CACHE_SIZE);
+ unsigned long total_pages_in = DIV_ROUND_UP(srclen, PAGE_SIZE);
unsigned long buf_start;
unsigned long pg_offset;

data_in = kmap(pages_in[page_in_index]);
workspace->strm.next_in = data_in;
- workspace->strm.avail_in = min_t(size_t, srclen, PAGE_CACHE_SIZE);
+ workspace->strm.avail_in = min_t(size_t, srclen, PAGE_SIZE);
workspace->strm.total_in = 0;

workspace->strm.total_out = 0;
workspace->strm.next_out = workspace->buf;
- workspace->strm.avail_out = PAGE_CACHE_SIZE;
+ workspace->strm.avail_out = PAGE_SIZE;
pg_offset = 0;

/* If it's deflate, and it's got no preset dictionary, then
@@ -274,7 +274,7 @@ static int zlib_decompress_biovec(struct list_head *ws, struct page **pages_in,
}

workspace->strm.next_out = workspace->buf;
- workspace->strm.avail_out = PAGE_CACHE_SIZE;
+ workspace->strm.avail_out = PAGE_SIZE;

if (workspace->strm.avail_in == 0) {
unsigned long tmp;
@@ -288,7 +288,7 @@ static int zlib_decompress_biovec(struct list_head *ws, struct page **pages_in,
workspace->strm.next_in = data_in;
tmp = srclen - workspace->strm.total_in;
workspace->strm.avail_in = min(tmp,
- PAGE_CACHE_SIZE);
+ PAGE_SIZE);
}
}
if (ret != Z_STREAM_END)
@@ -325,7 +325,7 @@ static int zlib_decompress(struct list_head *ws, unsigned char *data_in,
workspace->strm.total_in = 0;

workspace->strm.next_out = workspace->buf;
- workspace->strm.avail_out = PAGE_CACHE_SIZE;
+ workspace->strm.avail_out = PAGE_SIZE;
workspace->strm.total_out = 0;
/* If it's deflate, and it's got no preset dictionary, then
we can tell zlib to skip the adler32 check. */
@@ -368,8 +368,8 @@ static int zlib_decompress(struct list_head *ws, unsigned char *data_in,
else
buf_offset = 0;

- bytes = min(PAGE_CACHE_SIZE - pg_offset,
- PAGE_CACHE_SIZE - buf_offset);
+ bytes = min(PAGE_SIZE - pg_offset,
+ PAGE_SIZE - buf_offset);
bytes = min(bytes, bytes_left);

kaddr = kmap_atomic(dest_page);
@@ -380,7 +380,7 @@ static int zlib_decompress(struct list_head *ws, unsigned char *data_in,
bytes_left -= bytes;
next:
workspace->strm.next_out = workspace->buf;
- workspace->strm.avail_out = PAGE_CACHE_SIZE;
+ workspace->strm.avail_out = PAGE_SIZE;
}

if (ret != Z_STREAM_END && bytes_left != 0)
--
2.7.0

On Sun, Mar 20, 2016 at 09:40:20PM +0300, Kirill A. Shutemov wrote:
> PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time ago
> with promise that one day it will be possible to implement page cache with
> bigger chunks than PAGE_SIZE.
>
> This promise never materialized. And unlikely will.
>
> We have many places where PAGE_CACHE_SIZE assumed to be equal to
> PAGE_SIZE. And it's constant source of confusion on whether PAGE_CACHE_*
> or PAGE_* constant should be used in a particular case, especially on the
> border between fs and mm.
>
> Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much
> breakage to be doable.
>
> Let's stop pretending that pages in page cache are special. They are not.
>
> The changes are pretty straight-forward:
>
> - <foo> << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>;
>
> - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN};
>
> - page_cache_get() -> get_page();
>
> - page_cache_release() -> put_page();
>
> Signed-off-by: Kirill A. Shutemov <[email protected]>
> Cc: Dan Williams <[email protected]>
> Cc: Vishal Verma <[email protected]>
> Cc: Ross Zwisler <[email protected]>

Sure, this seems right. Thanks for making this simpler.

Reviewed-by: Ross Zwisler <[email protected]>

> ---
> drivers/nvdimm/btt.c | 2 +-
> drivers/nvdimm/pmem.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
> index c32cbb593600..f068b6513cd2 100644
> --- a/drivers/nvdimm/btt.c
> +++ b/drivers/nvdimm/btt.c
> @@ -1204,7 +1204,7 @@ static int btt_rw_page(struct block_device *bdev, sector_t sector,
> {
> struct btt *btt = bdev->bd_disk->private_data;
>
> - btt_do_bvec(btt, NULL, page, PAGE_CACHE_SIZE, 0, rw, sector);
> + btt_do_bvec(btt, NULL, page, PAGE_SIZE, 0, rw, sector);
> page_endio(page, rw & WRITE, 0);
> return 0;
> }
> diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
> index ca5721c306bb..a1a29c711532 100644
> --- a/drivers/nvdimm/pmem.c
> +++ b/drivers/nvdimm/pmem.c
> @@ -151,7 +151,7 @@ static int pmem_rw_page(struct block_device *bdev, sector_t sector,
> struct pmem_device *pmem = bdev->bd_disk->private_data;
> int rc;
>
> - rc = pmem_do_bvec(pmem, page, PAGE_CACHE_SIZE, 0, rw, sector);
> + rc = pmem_do_bvec(pmem, page, PAGE_SIZE, 0, rw, sector);
> if (rw & WRITE)
> wmb_pmem();
>
> --
> 2.7.0
>