Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755097AbcCTS4U (ORCPT ); Sun, 20 Mar 2016 14:56:20 -0400 Received: from mga04.intel.com ([192.55.52.120]:61069 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753320AbcCTSmU (ORCPT ); Sun, 20 Mar 2016 14:42:20 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,367,1455004800"; d="scan'208";a="937918646" From: "Kirill A. Shutemov" To: Andrew Morton , Alexander Viro , Linus Torvalds Cc: Christoph Lameter , Matthew Wilcox , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, "Kirill A. Shutemov" , Ilya Dryomov , "Yan, Zheng" , Sage Weil Subject: [PATCH 24/71] ceph: get rid of PAGE_CACHE_* and page_cache_{get,release} macros Date: Sun, 20 Mar 2016 21:40:31 +0300 Message-Id: <1458499278-1516-25-git-send-email-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1458499278-1516-1-git-send-email-kirill.shutemov@linux.intel.com> References: <1458499278-1516-1-git-send-email-kirill.shutemov@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 26258 Lines: 801 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: - << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> ; - 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 Cc: Ilya Dryomov Cc: "Yan, Zheng" Cc: Sage Weil --- fs/ceph/addr.c | 106 +++++++++++++++++++++---------------------- fs/ceph/caps.c | 2 +- fs/ceph/dir.c | 4 +- fs/ceph/file.c | 32 ++++++------- fs/ceph/inode.c | 4 +- fs/ceph/mds_client.c | 2 +- fs/ceph/mds_client.h | 2 +- fs/ceph/super.c | 8 ++-- include/linux/ceph/libceph.h | 4 +- net/ceph/messenger.c | 6 +-- net/ceph/pagelist.c | 4 +- net/ceph/pagevec.c | 30 ++++++------ 12 files changed, 102 insertions(+), 102 deletions(-) diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 19adeb0ef82a..355e2bc794cd 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -143,7 +143,7 @@ static void ceph_invalidatepage(struct page *page, unsigned int offset, inode = page->mapping->host; ci = ceph_inode(inode); - if (offset != 0 || length != PAGE_CACHE_SIZE) { + if (offset != 0 || length != PAGE_SIZE) { dout("%p invalidatepage %p idx %lu partial dirty page %u~%u\n", inode, page, page->index, offset, length); return; @@ -197,10 +197,10 @@ static int readpage_nounlock(struct file *filp, struct page *page) &ceph_inode_to_client(inode)->client->osdc; int err = 0; u64 off = page_offset(page); - u64 len = PAGE_CACHE_SIZE; + u64 len = PAGE_SIZE; if (off >= i_size_read(inode)) { - zero_user_segment(page, 0, PAGE_CACHE_SIZE); + zero_user_segment(page, 0, PAGE_SIZE); SetPageUptodate(page); return 0; } @@ -212,7 +212,7 @@ static int readpage_nounlock(struct file *filp, struct page *page) */ if (off == 0) return -EINVAL; - zero_user_segment(page, 0, PAGE_CACHE_SIZE); + zero_user_segment(page, 0, PAGE_SIZE); SetPageUptodate(page); return 0; } @@ -234,9 +234,9 @@ static int readpage_nounlock(struct file *filp, struct page *page) ceph_fscache_readpage_cancel(inode, page); goto out; } - if (err < PAGE_CACHE_SIZE) + if (err < PAGE_SIZE) /* zero fill remainder of page */ - zero_user_segment(page, err, PAGE_CACHE_SIZE); + zero_user_segment(page, err, PAGE_SIZE); else flush_dcache_page(page); @@ -278,10 +278,10 @@ static void finish_read(struct ceph_osd_request *req, struct ceph_msg *msg) if (rc < 0 && rc != ENOENT) goto unlock; - if (bytes < (int)PAGE_CACHE_SIZE) { + if (bytes < (int)PAGE_SIZE) { /* zero (remainder of) page */ int s = bytes < 0 ? 0 : bytes; - zero_user_segment(page, s, PAGE_CACHE_SIZE); + zero_user_segment(page, s, PAGE_SIZE); } dout("finish_read %p uptodate %p idx %lu\n", inode, page, page->index); @@ -290,8 +290,8 @@ static void finish_read(struct ceph_osd_request *req, struct ceph_msg *msg) ceph_readpage_to_fscache(inode, page); unlock: unlock_page(page); - page_cache_release(page); - bytes -= PAGE_CACHE_SIZE; + put_page(page); + bytes -= PAGE_SIZE; } kfree(osd_data->pages); } @@ -336,7 +336,7 @@ static int start_read(struct inode *inode, struct list_head *page_list, int max) if (max && nr_pages == max) break; } - len = nr_pages << PAGE_CACHE_SHIFT; + len = nr_pages << PAGE_SHIFT; dout("start_read %p nr_pages %d is %lld~%lld\n", inode, nr_pages, off, len); vino = ceph_vino(inode); @@ -364,7 +364,7 @@ static int start_read(struct inode *inode, struct list_head *page_list, int max) if (add_to_page_cache_lru(page, &inode->i_data, page->index, GFP_KERNEL)) { ceph_fscache_uncache_page(inode, page); - page_cache_release(page); + put_page(page); dout("start_read %p add_to_page_cache failed %p\n", inode, page); nr_pages = i; @@ -415,8 +415,8 @@ static int ceph_readpages(struct file *file, struct address_space *mapping, if (rc == 0) goto out; - if (fsc->mount_options->rsize >= PAGE_CACHE_SIZE) - max = (fsc->mount_options->rsize + PAGE_CACHE_SIZE - 1) + if (fsc->mount_options->rsize >= PAGE_SIZE) + max = (fsc->mount_options->rsize + PAGE_SIZE - 1) >> PAGE_SHIFT; dout("readpages %p file %p nr_pages %d max %d\n", inode, @@ -484,7 +484,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc) long writeback_stat; u64 truncate_size; u32 truncate_seq; - int err = 0, len = PAGE_CACHE_SIZE; + int err = 0, len = PAGE_SIZE; dout("writepage %p idx %lu\n", page, page->index); @@ -725,9 +725,9 @@ static int ceph_writepages_start(struct address_space *mapping, } if (fsc->mount_options->wsize && fsc->mount_options->wsize < wsize) wsize = fsc->mount_options->wsize; - if (wsize < PAGE_CACHE_SIZE) - wsize = PAGE_CACHE_SIZE; - max_pages_ever = wsize >> PAGE_CACHE_SHIFT; + if (wsize < PAGE_SIZE) + wsize = PAGE_SIZE; + max_pages_ever = wsize >> PAGE_SHIFT; pagevec_init(&pvec, 0); @@ -737,8 +737,8 @@ static int ceph_writepages_start(struct address_space *mapping, end = -1; dout(" cyclic, start at %lu\n", start); } else { - start = wbc->range_start >> PAGE_CACHE_SHIFT; - end = wbc->range_end >> PAGE_CACHE_SHIFT; + start = wbc->range_start >> PAGE_SHIFT; + end = wbc->range_end >> PAGE_SHIFT; if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX) range_whole = 1; should_loop = 0; @@ -953,14 +953,14 @@ get_more_pages: /* Format the osd request message and submit the write */ offset = page_offset(pages[0]); - len = (u64)locked_pages << PAGE_CACHE_SHIFT; + len = (u64)locked_pages << PAGE_SHIFT; if (snap_size == -1) { len = min(len, (u64)i_size_read(inode) - offset); /* writepages_finish() clears writeback pages * according to the data length, so make sure * data length covers all locked pages */ len = max(len, 1 + - ((u64)(locked_pages - 1) << PAGE_CACHE_SHIFT)); + ((u64)(locked_pages - 1) << PAGE_SHIFT)); } else { len = min(len, snap_size - offset); } @@ -1048,8 +1048,8 @@ static int ceph_update_writeable_page(struct file *file, { struct inode *inode = file_inode(file); struct ceph_inode_info *ci = ceph_inode(inode); - loff_t page_off = pos & PAGE_CACHE_MASK; - int pos_in_page = pos & ~PAGE_CACHE_MASK; + loff_t page_off = pos & PAGE_MASK; + int pos_in_page = pos & ~PAGE_MASK; int end_in_page = pos_in_page + len; loff_t i_size; int r; @@ -1104,7 +1104,7 @@ retry_locked: } /* full page? */ - if (pos_in_page == 0 && len == PAGE_CACHE_SIZE) + if (pos_in_page == 0 && len == PAGE_SIZE) return 0; /* past end of file? */ @@ -1112,12 +1112,12 @@ retry_locked: if (page_off >= i_size || (pos_in_page == 0 && (pos+len) >= i_size && - end_in_page - pos_in_page != PAGE_CACHE_SIZE)) { + end_in_page - pos_in_page != PAGE_SIZE)) { dout(" zeroing %p 0 - %d and %d - %d\n", - page, pos_in_page, end_in_page, (int)PAGE_CACHE_SIZE); + page, pos_in_page, end_in_page, (int)PAGE_SIZE); zero_user_segments(page, 0, pos_in_page, - end_in_page, PAGE_CACHE_SIZE); + end_in_page, PAGE_SIZE); return 0; } @@ -1141,7 +1141,7 @@ static int ceph_write_begin(struct file *file, struct address_space *mapping, { struct inode *inode = file_inode(file); struct page *page; - pgoff_t index = pos >> PAGE_CACHE_SHIFT; + pgoff_t index = pos >> PAGE_SHIFT; int r; do { @@ -1155,7 +1155,7 @@ static int ceph_write_begin(struct file *file, struct address_space *mapping, r = ceph_update_writeable_page(file, pos, len, page); if (r < 0) - page_cache_release(page); + put_page(page); else *pagep = page; } while (r == -EAGAIN); @@ -1172,7 +1172,7 @@ static int ceph_write_end(struct file *file, struct address_space *mapping, struct page *page, void *fsdata) { struct inode *inode = file_inode(file); - unsigned from = pos & (PAGE_CACHE_SIZE - 1); + unsigned from = pos & (PAGE_SIZE - 1); int check_cap = 0; dout("write_end file %p inode %p page %p %d~%d (%d)\n", file, @@ -1192,7 +1192,7 @@ static int ceph_write_end(struct file *file, struct address_space *mapping, set_page_dirty(page); unlock_page(page); - page_cache_release(page); + put_page(page); if (check_cap) ceph_check_caps(ceph_inode(inode), CHECK_CAPS_AUTHONLY, NULL); @@ -1235,11 +1235,11 @@ static int ceph_filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) struct ceph_inode_info *ci = ceph_inode(inode); struct ceph_file_info *fi = vma->vm_file->private_data; struct page *pinned_page = NULL; - loff_t off = vmf->pgoff << PAGE_CACHE_SHIFT; + loff_t off = vmf->pgoff << PAGE_SHIFT; int want, got, ret; dout("filemap_fault %p %llx.%llx %llu~%zd trying to get caps\n", - inode, ceph_vinop(inode), off, (size_t)PAGE_CACHE_SIZE); + inode, ceph_vinop(inode), off, (size_t)PAGE_SIZE); if (fi->fmode & CEPH_FILE_MODE_LAZY) want = CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO; else @@ -1256,7 +1256,7 @@ static int ceph_filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) } } dout("filemap_fault %p %llu~%zd got cap refs on %s\n", - inode, off, (size_t)PAGE_CACHE_SIZE, ceph_cap_string(got)); + inode, off, (size_t)PAGE_SIZE, ceph_cap_string(got)); if ((got & (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO)) || ci->i_inline_version == CEPH_INLINE_NONE) @@ -1265,16 +1265,16 @@ static int ceph_filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) ret = -EAGAIN; dout("filemap_fault %p %llu~%zd dropping cap refs on %s ret %d\n", - inode, off, (size_t)PAGE_CACHE_SIZE, ceph_cap_string(got), ret); + inode, off, (size_t)PAGE_SIZE, ceph_cap_string(got), ret); if (pinned_page) - page_cache_release(pinned_page); + put_page(pinned_page); ceph_put_cap_refs(ci, got); if (ret != -EAGAIN) return ret; /* read inline data */ - if (off >= PAGE_CACHE_SIZE) { + if (off >= PAGE_SIZE) { /* does not support inline data > PAGE_SIZE */ ret = VM_FAULT_SIGBUS; } else { @@ -1291,12 +1291,12 @@ static int ceph_filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) CEPH_STAT_CAP_INLINE_DATA, true); if (ret1 < 0 || off >= i_size_read(inode)) { unlock_page(page); - page_cache_release(page); + put_page(page); ret = VM_FAULT_SIGBUS; goto out; } - if (ret1 < PAGE_CACHE_SIZE) - zero_user_segment(page, ret1, PAGE_CACHE_SIZE); + if (ret1 < PAGE_SIZE) + zero_user_segment(page, ret1, PAGE_SIZE); else flush_dcache_page(page); SetPageUptodate(page); @@ -1305,7 +1305,7 @@ static int ceph_filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) } out: dout("filemap_fault %p %llu~%zd read inline data ret %d\n", - inode, off, (size_t)PAGE_CACHE_SIZE, ret); + inode, off, (size_t)PAGE_SIZE, ret); return ret; } @@ -1343,10 +1343,10 @@ static int ceph_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) } } - if (off + PAGE_CACHE_SIZE <= size) - len = PAGE_CACHE_SIZE; + if (off + PAGE_SIZE <= size) + len = PAGE_SIZE; else - len = size & ~PAGE_CACHE_MASK; + len = size & ~PAGE_MASK; dout("page_mkwrite %p %llx.%llx %llu~%zd getting caps i_size %llu\n", inode, ceph_vinop(inode), off, len, size); @@ -1432,7 +1432,7 @@ void ceph_fill_inline_data(struct inode *inode, struct page *locked_page, return; if (PageUptodate(page)) { unlock_page(page); - page_cache_release(page); + put_page(page); return; } } @@ -1447,14 +1447,14 @@ void ceph_fill_inline_data(struct inode *inode, struct page *locked_page, } if (page != locked_page) { - if (len < PAGE_CACHE_SIZE) - zero_user_segment(page, len, PAGE_CACHE_SIZE); + if (len < PAGE_SIZE) + zero_user_segment(page, len, PAGE_SIZE); else flush_dcache_page(page); SetPageUptodate(page); unlock_page(page); - page_cache_release(page); + put_page(page); } } @@ -1491,7 +1491,7 @@ int ceph_uninline_data(struct file *filp, struct page *locked_page) from_pagecache = true; lock_page(page); } else { - page_cache_release(page); + put_page(page); page = NULL; } } @@ -1499,8 +1499,8 @@ int ceph_uninline_data(struct file *filp, struct page *locked_page) if (page) { len = i_size_read(inode); - if (len > PAGE_CACHE_SIZE) - len = PAGE_CACHE_SIZE; + if (len > PAGE_SIZE) + len = PAGE_SIZE; } else { page = __page_cache_alloc(GFP_NOFS); if (!page) { @@ -1584,7 +1584,7 @@ out: if (page && page != locked_page) { if (from_pagecache) { unlock_page(page); - page_cache_release(page); + put_page(page); } else __free_pages(page, 0); } diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 6fe0ad26a7df..835b1d9a8873 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -2507,7 +2507,7 @@ int ceph_get_caps(struct ceph_inode_info *ci, int need, int want, *pinned_page = page; break; } - page_cache_release(page); + put_page(page); } /* * drop cap refs first because getattr while diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index fd11fb231a2e..b91369988eaa 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -146,7 +146,7 @@ static int __dcache_readdir(struct file *file, struct dir_context *ctx, struct inode *dir = d_inode(parent); struct dentry *dentry, *last = NULL; struct ceph_dentry_info *di; - unsigned nsize = PAGE_CACHE_SIZE / sizeof(struct dentry *); + unsigned nsize = PAGE_SIZE / sizeof(struct dentry *); int err = 0; loff_t ptr_pos = 0; struct ceph_readdir_cache_control cache_ctl = {}; @@ -171,7 +171,7 @@ static int __dcache_readdir(struct file *file, struct dir_context *ctx, } err = -EAGAIN; - pgoff = ptr_pos >> PAGE_CACHE_SHIFT; + pgoff = ptr_pos >> PAGE_SHIFT; if (!cache_ctl.page || pgoff != page_index(cache_ctl.page)) { ceph_readdir_cache_release(&cache_ctl); cache_ctl.page = find_lock_page(&dir->i_data, pgoff); diff --git a/fs/ceph/file.c b/fs/ceph/file.c index eb9028e8cfc5..04040daaf5f1 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -459,7 +459,7 @@ more: ret += zlen; } - didpages = (page_align + ret) >> PAGE_CACHE_SHIFT; + didpages = (page_align + ret) >> PAGE_SHIFT; pos += ret; read = pos - off; left -= ret; @@ -800,8 +800,8 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter, if (write) { ret = invalidate_inode_pages2_range(inode->i_mapping, - pos >> PAGE_CACHE_SHIFT, - (pos + count) >> PAGE_CACHE_SHIFT); + pos >> PAGE_SHIFT, + (pos + count) >> PAGE_SHIFT); if (ret < 0) dout("invalidate_inode_pages2_range returned %d\n", ret); @@ -866,7 +866,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter, * may block. */ truncate_inode_pages_range(inode->i_mapping, pos, - (pos+len) | (PAGE_CACHE_SIZE - 1)); + (pos+len) | (PAGE_SIZE - 1)); osd_req_op_init(req, 1, CEPH_OSD_OP_STARTSYNC, 0); } @@ -1001,8 +1001,8 @@ ceph_sync_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos, return ret; ret = invalidate_inode_pages2_range(inode->i_mapping, - pos >> PAGE_CACHE_SHIFT, - (pos + count) >> PAGE_CACHE_SHIFT); + pos >> PAGE_SHIFT, + (pos + count) >> PAGE_SHIFT); if (ret < 0) dout("invalidate_inode_pages2_range returned %d\n", ret); @@ -1031,7 +1031,7 @@ ceph_sync_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos, * write from beginning of first page, * regardless of io alignment */ - num_pages = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; + num_pages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT; pages = ceph_alloc_page_vector(num_pages, GFP_KERNEL); if (IS_ERR(pages)) { @@ -1154,7 +1154,7 @@ again: dout("aio_read %p %llx.%llx dropping cap refs on %s = %d\n", inode, ceph_vinop(inode), ceph_cap_string(got), (int)ret); if (pinned_page) { - page_cache_release(pinned_page); + put_page(pinned_page); pinned_page = NULL; } ceph_put_cap_refs(ci, got); @@ -1183,10 +1183,10 @@ again: if (retry_op == READ_INLINE) { BUG_ON(ret > 0 || read > 0); if (iocb->ki_pos < i_size && - iocb->ki_pos < PAGE_CACHE_SIZE) { + iocb->ki_pos < PAGE_SIZE) { loff_t end = min_t(loff_t, i_size, iocb->ki_pos + len); - end = min_t(loff_t, end, PAGE_CACHE_SIZE); + end = min_t(loff_t, end, PAGE_SIZE); if (statret < end) zero_user_segment(page, statret, end); ret = copy_page_to_iter(page, @@ -1458,21 +1458,21 @@ static inline void ceph_zero_partial_page( struct inode *inode, loff_t offset, unsigned size) { struct page *page; - pgoff_t index = offset >> PAGE_CACHE_SHIFT; + pgoff_t index = offset >> PAGE_SHIFT; page = find_lock_page(inode->i_mapping, index); if (page) { wait_on_page_writeback(page); - zero_user(page, offset & (PAGE_CACHE_SIZE - 1), size); + zero_user(page, offset & (PAGE_SIZE - 1), size); unlock_page(page); - page_cache_release(page); + put_page(page); } } static void ceph_zero_pagecache_range(struct inode *inode, loff_t offset, loff_t length) { - loff_t nearly = round_up(offset, PAGE_CACHE_SIZE); + loff_t nearly = round_up(offset, PAGE_SIZE); if (offset < nearly) { loff_t size = nearly - offset; if (length < size) @@ -1481,8 +1481,8 @@ static void ceph_zero_pagecache_range(struct inode *inode, loff_t offset, offset += size; length -= size; } - if (length >= PAGE_CACHE_SIZE) { - loff_t size = round_down(length, PAGE_CACHE_SIZE); + if (length >= PAGE_SIZE) { + loff_t size = round_down(length, PAGE_SIZE); truncate_pagecache_range(inode, offset, offset + size - 1); offset += size; length -= size; diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index e48fd8b23257..d5572db245e5 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -1333,7 +1333,7 @@ void ceph_readdir_cache_release(struct ceph_readdir_cache_control *ctl) { if (ctl->page) { kunmap(ctl->page); - page_cache_release(ctl->page); + put_page(ctl->page); ctl->page = NULL; } } @@ -1343,7 +1343,7 @@ static int fill_readdir_cache(struct inode *dir, struct dentry *dn, struct ceph_mds_request *req) { struct ceph_inode_info *ci = ceph_inode(dir); - unsigned nsize = PAGE_CACHE_SIZE / sizeof(struct dentry*); + unsigned nsize = PAGE_SIZE / sizeof(struct dentry*); unsigned idx = ctl->index % nsize; pgoff_t pgoff = ctl->index / nsize; diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 911d64d865f1..859c0444d3b9 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -1610,7 +1610,7 @@ again: while (!list_empty(&tmp_list)) { if (!msg) { msg = ceph_msg_new(CEPH_MSG_CLIENT_CAPRELEASE, - PAGE_CACHE_SIZE, GFP_NOFS, false); + PAGE_SIZE, GFP_NOFS, false); if (!msg) goto out_err; head = msg->front.iov_base; diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h index 37712ccffcc6..3a8408ccf337 100644 --- a/fs/ceph/mds_client.h +++ b/fs/ceph/mds_client.h @@ -97,7 +97,7 @@ struct ceph_mds_reply_info_parsed { /* * cap releases are batched and sent to the MDS en masse. */ -#define CEPH_CAPS_PER_RELEASE ((PAGE_CACHE_SIZE - \ +#define CEPH_CAPS_PER_RELEASE ((PAGE_SIZE - \ sizeof(struct ceph_mds_cap_release)) / \ sizeof(struct ceph_mds_cap_item)) diff --git a/fs/ceph/super.c b/fs/ceph/super.c index ca4d5e8457f1..98acbf7b3efc 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -560,7 +560,7 @@ static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt, /* set up mempools */ err = -ENOMEM; - page_count = fsc->mount_options->wsize >> PAGE_CACHE_SHIFT; + page_count = fsc->mount_options->wsize >> PAGE_SHIFT; size = sizeof (struct page *) * (page_count ? page_count : 1); fsc->wb_pagevec_pool = mempool_create_kmalloc_pool(10, size); if (!fsc->wb_pagevec_pool) @@ -915,13 +915,13 @@ static int ceph_register_bdi(struct super_block *sb, int err; /* set ra_pages based on rasize mount option? */ - if (fsc->mount_options->rasize >= PAGE_CACHE_SIZE) + if (fsc->mount_options->rasize >= PAGE_SIZE) fsc->backing_dev_info.ra_pages = - (fsc->mount_options->rasize + PAGE_CACHE_SIZE - 1) + (fsc->mount_options->rasize + PAGE_SIZE - 1) >> PAGE_SHIFT; else fsc->backing_dev_info.ra_pages = - VM_MAX_READAHEAD * 1024 / PAGE_CACHE_SIZE; + VM_MAX_READAHEAD * 1024 / PAGE_SIZE; err = bdi_register(&fsc->backing_dev_info, NULL, "ceph-%ld", atomic_long_inc_return(&bdi_seq)); diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h index 3e3799cdc6e6..9092a92400ac 100644 --- a/include/linux/ceph/libceph.h +++ b/include/linux/ceph/libceph.h @@ -172,8 +172,8 @@ extern void ceph_put_snap_context(struct ceph_snap_context *sc); */ static inline int calc_pages_for(u64 off, u64 len) { - return ((off+len+PAGE_CACHE_SIZE-1) >> PAGE_CACHE_SHIFT) - - (off >> PAGE_CACHE_SHIFT); + return ((off+len+PAGE_SIZE-1) >> PAGE_SHIFT) - + (off >> PAGE_SHIFT); } extern struct kmem_cache *ceph_inode_cachep; diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 9382619a405b..298770cf66e5 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -275,7 +275,7 @@ static void _ceph_msgr_exit(void) } BUG_ON(zero_page == NULL); - page_cache_release(zero_page); + put_page(zero_page); zero_page = NULL; ceph_msgr_slab_exit(); @@ -288,7 +288,7 @@ int ceph_msgr_init(void) BUG_ON(zero_page != NULL); zero_page = ZERO_PAGE(0); - page_cache_get(zero_page); + get_page(zero_page); /* * The number of active work items is limited by the number of @@ -1614,7 +1614,7 @@ static int write_partial_skip(struct ceph_connection *con) dout("%s %p %d left\n", __func__, con, con->out_skip); while (con->out_skip > 0) { - size_t size = min(con->out_skip, (int) PAGE_CACHE_SIZE); + size_t size = min(con->out_skip, (int) PAGE_SIZE); ret = ceph_tcp_sendpage(con->sock, zero_page, 0, size, true); if (ret <= 0) diff --git a/net/ceph/pagelist.c b/net/ceph/pagelist.c index c7c220a736e5..6864007e64fc 100644 --- a/net/ceph/pagelist.c +++ b/net/ceph/pagelist.c @@ -56,7 +56,7 @@ int ceph_pagelist_append(struct ceph_pagelist *pl, const void *buf, size_t len) size_t bit = pl->room; int ret; - memcpy(pl->mapped_tail + (pl->length & ~PAGE_CACHE_MASK), + memcpy(pl->mapped_tail + (pl->length & ~PAGE_MASK), buf, bit); pl->length += bit; pl->room -= bit; @@ -67,7 +67,7 @@ int ceph_pagelist_append(struct ceph_pagelist *pl, const void *buf, size_t len) return ret; } - memcpy(pl->mapped_tail + (pl->length & ~PAGE_CACHE_MASK), buf, len); + memcpy(pl->mapped_tail + (pl->length & ~PAGE_MASK), buf, len); pl->length += len; pl->room -= len; return 0; diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c index d4f5f220a8e5..72ca9651562a 100644 --- a/net/ceph/pagevec.c +++ b/net/ceph/pagevec.c @@ -95,19 +95,19 @@ int ceph_copy_user_to_page_vector(struct page **pages, loff_t off, size_t len) { int i = 0; - int po = off & ~PAGE_CACHE_MASK; + int po = off & ~PAGE_MASK; int left = len; int l, bad; while (left > 0) { - l = min_t(int, PAGE_CACHE_SIZE-po, left); + l = min_t(int, PAGE_SIZE-po, left); bad = copy_from_user(page_address(pages[i]) + po, data, l); if (bad == l) return -EFAULT; data += l - bad; left -= l - bad; po += l - bad; - if (po == PAGE_CACHE_SIZE) { + if (po == PAGE_SIZE) { po = 0; i++; } @@ -121,17 +121,17 @@ void ceph_copy_to_page_vector(struct page **pages, loff_t off, size_t len) { int i = 0; - size_t po = off & ~PAGE_CACHE_MASK; + size_t po = off & ~PAGE_MASK; size_t left = len; while (left > 0) { - size_t l = min_t(size_t, PAGE_CACHE_SIZE-po, left); + size_t l = min_t(size_t, PAGE_SIZE-po, left); memcpy(page_address(pages[i]) + po, data, l); data += l; left -= l; po += l; - if (po == PAGE_CACHE_SIZE) { + if (po == PAGE_SIZE) { po = 0; i++; } @@ -144,17 +144,17 @@ void ceph_copy_from_page_vector(struct page **pages, loff_t off, size_t len) { int i = 0; - size_t po = off & ~PAGE_CACHE_MASK; + size_t po = off & ~PAGE_MASK; size_t left = len; while (left > 0) { - size_t l = min_t(size_t, PAGE_CACHE_SIZE-po, left); + size_t l = min_t(size_t, PAGE_SIZE-po, left); memcpy(data, page_address(pages[i]) + po, l); data += l; left -= l; po += l; - if (po == PAGE_CACHE_SIZE) { + if (po == PAGE_SIZE) { po = 0; i++; } @@ -168,25 +168,25 @@ EXPORT_SYMBOL(ceph_copy_from_page_vector); */ void ceph_zero_page_vector_range(int off, int len, struct page **pages) { - int i = off >> PAGE_CACHE_SHIFT; + int i = off >> PAGE_SHIFT; - off &= ~PAGE_CACHE_MASK; + off &= ~PAGE_MASK; dout("zero_page_vector_page %u~%u\n", off, len); /* leading partial page? */ if (off) { - int end = min((int)PAGE_CACHE_SIZE, off + len); + int end = min((int)PAGE_SIZE, off + len); dout("zeroing %d %p head from %d\n", i, pages[i], (int)off); zero_user_segment(pages[i], off, end); len -= (end - off); i++; } - while (len >= PAGE_CACHE_SIZE) { + while (len >= PAGE_SIZE) { dout("zeroing %d %p len=%d\n", i, pages[i], len); - zero_user_segment(pages[i], 0, PAGE_CACHE_SIZE); - len -= PAGE_CACHE_SIZE; + zero_user_segment(pages[i], 0, PAGE_SIZE); + len -= PAGE_SIZE; i++; } /* trailing partial page? */ -- 2.7.0