2024-04-26 09:34:42

by Chao Yu

Subject: [PATCH] f2fs: fix to avoid allocating WARM_DATA segment for direct IO

If active_log is not 6, we never use WARM_DATA segment, let's
avoid allocating WARM_DATA segment for direct IO.

Signed-off-by: Yunlei He <[email protected]>
Signed-off-by: Chao Yu <[email protected]>
---
fs/f2fs/data.c | 3 ++-
fs/f2fs/f2fs.h | 2 +-
fs/f2fs/file.c | 5 +++--
fs/f2fs/segment.c | 11 +++++++++--
4 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index bee1e45f76b8..0c516c653f05 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -4179,7 +4179,8 @@ static int f2fs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
map.m_lblk = bytes_to_blks(inode, offset);
map.m_len = bytes_to_blks(inode, offset + length - 1) - map.m_lblk + 1;
map.m_next_pgofs = &next_pgofs;
- map.m_seg_type = f2fs_rw_hint_to_seg_type(inode->i_write_hint);
+ map.m_seg_type = f2fs_rw_hint_to_seg_type(F2FS_I_SB(inode),
+ inode->i_write_hint);
if (flags & IOMAP_WRITE)
map.m_may_create = true;

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index e8ff301eaf32..6dd50a6075c0 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3747,7 +3747,7 @@ int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
int __init f2fs_create_segment_manager_caches(void);
void f2fs_destroy_segment_manager_caches(void);
-int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
+int f2fs_rw_hint_to_seg_type(struct f2fs_sb_info *sbi, enum rw_hint hint);
enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
enum page_type type, enum temp_type temp);
unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 856a5d3bd6bf..23601d747716 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4643,7 +4643,8 @@ static int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *iter,

map.m_may_create = true;
if (dio) {
- map.m_seg_type = f2fs_rw_hint_to_seg_type(inode->i_write_hint);
+ map.m_seg_type = f2fs_rw_hint_to_seg_type(sbi,
+ inode->i_write_hint);
flag = F2FS_GET_BLOCK_PRE_DIO;
} else {
map.m_seg_type = NO_CHECK_TYPE;
@@ -4696,7 +4697,7 @@ static void f2fs_dio_write_submit_io(const struct iomap_iter *iter,
{
struct inode *inode = iter->inode;
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- int seg_type = f2fs_rw_hint_to_seg_type(inode->i_write_hint);
+ int seg_type = f2fs_rw_hint_to_seg_type(sbi, inode->i_write_hint);
enum temp_type temp = f2fs_get_segment_temp(seg_type);

bio->bi_write_hint = f2fs_io_type_to_rw_hint(sbi, DATA, temp);
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 8313d6aeaf41..94f3380be04c 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -3358,8 +3358,14 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
return err;
}

-int f2fs_rw_hint_to_seg_type(enum rw_hint hint)
+int f2fs_rw_hint_to_seg_type(struct f2fs_sb_info *sbi, enum rw_hint hint)
{
+ if (F2FS_OPTION(sbi).active_logs == 2)
+ return CURSEG_HOT_DATA;
+ else if (F2FS_OPTION(sbi).active_logs == 4)
+ return CURSEG_COLD_DATA;
+
+ /* active_log == 6 */
switch (hint) {
case WRITE_LIFE_SHORT:
return CURSEG_HOT_DATA;
@@ -3499,7 +3505,8 @@ static int __get_segment_type_6(struct f2fs_io_info *fio)
is_inode_flag_set(inode, FI_HOT_DATA) ||
f2fs_is_cow_file(inode))
return CURSEG_HOT_DATA;
- return f2fs_rw_hint_to_seg_type(inode->i_write_hint);
+ return f2fs_rw_hint_to_seg_type(F2FS_I_SB(inode),
+ inode->i_write_hint);
} else {
if (IS_DNODE(fio->page))
return is_cold_node(fio->page) ? CURSEG_WARM_NODE :
--
2.40.1

2024-05-11 00:56:23

by patchwork-bot+f2fs

Subject: Re: [f2fs-dev] [PATCH] f2fs: fix to avoid allocating WARM_DATA segment for direct IO

Hello:

This patch was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <[email protected]>:

On Fri, 26 Apr 2024 17:33:48 +0800 you wrote:
> If active_log is not 6, we never use WARM_DATA segment, let's
> avoid allocating WARM_DATA segment for direct IO.
>
> Signed-off-by: Yunlei He <[email protected]>
> Signed-off-by: Chao Yu <[email protected]>
> ---
> fs/f2fs/data.c | 3 ++-
> fs/f2fs/f2fs.h | 2 +-
> fs/f2fs/file.c | 5 +++--
> fs/f2fs/segment.c | 11 +++++++++--
> 4 files changed, 15 insertions(+), 6 deletions(-)

Here is the summary with links:
- [f2fs-dev] f2fs: fix to avoid allocating WARM_DATA segment for direct IO
https://git.kernel.org/jaegeuk/f2fs/c/a320b2f08b3b

You are awesome, thank you!
--
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