[f2fs-dev] [PATCH v2 4/6] f2fs: don't set FI_PREALLOCATED_ALL for partial write

[f2fs-dev] [PATCH v2 4/6] f2fs: don't set FI_PREALLOCATED_ALL for partial write

[Chao Yu]

In f2fs_preallocate_blocks(), if it is partial write in 4KB, it's not
necessary to call f2fs_map_blocks() and set FI_PREALLOCATED_ALL flag.

Cc: Eric Biggers <ebiggers@google.com>
Signed-off-by: Chao Yu <chao@kernel.org>
---
v2:
- clean up codes
 fs/f2fs/file.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 79d5b64c109c..026d05a7edd8 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4567,7 +4567,8 @@ static int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *iter,
 	if (map.m_len > map.m_lblk)
 		map.m_len -= map.m_lblk;
 	else
-		map.m_len = 0;
+		return 0;
+
 	map.m_may_create = true;
 	if (dio) {
 		map.m_seg_type = f2fs_rw_hint_to_seg_type(inode->i_write_hint);
-- 
2.40.1



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Re: [f2fs-dev] [PATCH v2 4/6] f2fs: don't set FI_PREALLOCATED_ALL for partial write

[patchwork-bot+f2fs]

Hello:

This patch was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <jaegeuk@kernel.org>:

On Tue, 12 Dec 2023 09:01:20 +0800 you wrote:
> In f2fs_preallocate_blocks(), if it is partial write in 4KB, it's not
> necessary to call f2fs_map_blocks() and set FI_PREALLOCATED_ALL flag.
> 
> Cc: Eric Biggers <ebiggers@google.com>
> Signed-off-by: Chao Yu <chao@kernel.org>
> ---
> v2:
> - clean up codes
>  fs/f2fs/file.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Here is the summary with links:
  - [f2fs-dev,v2,4/6] f2fs: don't set FI_PREALLOCATED_ALL for partial write
    https://git.kernel.org/jaegeuk/f2fs/c/394e7f4dbb32

You are awesome, thank you!
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