2024-01-17 08:01:29

by 牛志国 (Zhiguo Niu)

Subject: [PATCH] f2fs: use IS_INODE replace IS_DNODE in f2fs_flush_inline_data

Now IS_DNODE is used in f2fs_flush_inline_data and it has some problems:
1. Just only inodes may include inline data,not all direct nodes
2. When system IO is busy, it is inefficient to lock a direct node page
but not an inode page. Besides, if this direct node page is being
locked by others for IO, f2fs_flush_inline_data will be blocked here,
which will affects the checkpoint process, this is unreasonable.

So IS_INODE should be used in f2fs_flush_inline_data.

Signed-off-by: Zhiguo Niu <[email protected]>
---
fs/f2fs/node.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 541c4ad..a8fe49a3 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1919,7 +1919,7 @@ void f2fs_flush_inline_data(struct f2fs_sb_info *sbi)
for (i = 0; i < nr_folios; i++) {
struct page *page = &fbatch.folios[i]->page;

- if (!IS_DNODE(page))
+ if (!IS_INODE(page))
continue;

lock_page(page);
--
1.9.1

2024-01-22 02:34:11

by Chao Yu

Subject: Re: [PATCH] f2fs: use IS_INODE replace IS_DNODE in f2fs_flush_inline_data

On 2024/1/17 15:59, Zhiguo Niu wrote:
> Now IS_DNODE is used in f2fs_flush_inline_data and it has some problems:
> 1. Just only inodes may include inline data,not all direct nodes
> 2. When system IO is busy, it is inefficient to lock a direct node page
> but not an inode page. Besides, if this direct node page is being
> locked by others for IO, f2fs_flush_inline_data will be blocked here,
> which will affects the checkpoint process, this is unreasonable.
>
> So IS_INODE should be used in f2fs_flush_inline_data.
>
> Signed-off-by: Zhiguo Niu <[email protected]>

Reviewed-by: Chao Yu <[email protected]>

Thanks,

2024-01-30 20:50:50

by patchwork-bot+f2fs

Subject: Re: [f2fs-dev] [PATCH] f2fs: use IS_INODE replace IS_DNODE in f2fs_flush_inline_data

Hello:

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

On Wed, 17 Jan 2024 15:59:58 +0800 you wrote:
> Now IS_DNODE is used in f2fs_flush_inline_data and it has some problems:
> 1. Just only inodes may include inline data,not all direct nodes
> 2. When system IO is busy, it is inefficient to lock a direct node page
> but not an inode page. Besides, if this direct node page is being
> locked by others for IO, f2fs_flush_inline_data will be blocked here,
> which will affects the checkpoint process, this is unreasonable.
>
> [...]

Here is the summary with links:
- [f2fs-dev] f2fs: use IS_INODE replace IS_DNODE in f2fs_flush_inline_data
https://git.kernel.org/jaegeuk/f2fs/c/5e9f083a7ae8

You are awesome, thank you!
--
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