2021-04-25 02:58:45

by Jiabing Wan

Subject: [PATCH] ocfs2: Remove repeated uptodate check for buffer

In commit 60f91826ca62 ("buffer: Avoid setting buffer bits that are
already set"), function set_buffer_##name was added a test_bit() to
check buffer, which is the same as function buffer_##name.
The !buffer_uptodate(bh) here is a repeated check. Remove it.

Signed-off-by: Wan Jiabing <[email protected]>
---
fs/ocfs2/aops.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index ad20403b383f..bd039fdbb27e 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -634,8 +634,7 @@ int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno,
}

if (PageUptodate(page)) {
- if (!buffer_uptodate(bh))
- set_buffer_uptodate(bh);
+ set_buffer_uptodate(bh);
} else if (!buffer_uptodate(bh) && !buffer_delay(bh) &&
!buffer_new(bh) &&
ocfs2_should_read_blk(inode, page, block_start) &&
--
2.25.1

2021-04-25 06:21:30

by Joseph Qi

Subject: Re: [PATCH] ocfs2: Remove repeated uptodate check for buffer

On 4/25/21 10:57 AM, Wan Jiabing wrote:
> In commit 60f91826ca62 ("buffer: Avoid setting buffer bits that are
> already set"), function set_buffer_##name was added a test_bit() to
> check buffer, which is the same as function buffer_##name.
> The !buffer_uptodate(bh) here is a repeated check. Remove it.
>
> Signed-off-by: Wan Jiabing <[email protected]>

Looks good.
Reviewed-by: Joseph Qi <[email protected]>

> ---
> fs/ocfs2/aops.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
> index ad20403b383f..bd039fdbb27e 100644
> --- a/fs/ocfs2/aops.c
> +++ b/fs/ocfs2/aops.c
> @@ -634,8 +634,7 @@ int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno,
> }
>
> if (PageUptodate(page)) {
> - if (!buffer_uptodate(bh))
> - set_buffer_uptodate(bh);
> + set_buffer_uptodate(bh);
> } else if (!buffer_uptodate(bh) && !buffer_delay(bh) &&
> !buffer_new(bh) &&
> ocfs2_should_read_blk(inode, page, block_start) &&
>