linux-kernel - Re: [PATCH] f2fs: fix to use correct segment type in f2fs_allocate_data

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Date: Fri, 23 Feb 2024 12:52:44 -0800
From: Jaegeuk Kim <jaegeuk@...nel.org>
To: Chao Yu <chao@...nel.org>
Cc: linux-f2fs-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] f2fs: fix to use correct segment type in
 f2fs_allocate_data_block()

On 02/23, Chao Yu wrote:
> @type in f2fs_allocate_data_block() indicates log header's type, it
> can be CURSEG_COLD_DATA_PINNED or CURSEG_ALL_DATA_ATGC, rather than
> type of data/node, however IS_DATASEG()/IS_NODESEG() only accept later
> one, fix it.
> 
> Fixes: 093749e296e2 ("f2fs: support age threshold based garbage collection")
> Signed-off-by: Chao Yu <chao@...nel.org>
> ---
>  fs/f2fs/segment.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> index d0209ea77dd2..76422f50e6cc 100644
> --- a/fs/f2fs/segment.c
> +++ b/fs/f2fs/segment.c
> @@ -3505,12 +3505,12 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
>  	locate_dirty_segment(sbi, GET_SEGNO(sbi, old_blkaddr));
>  	locate_dirty_segment(sbi, GET_SEGNO(sbi, *new_blkaddr));
>  
> -	if (IS_DATASEG(type))
> +	if (IS_DATASEG(se->type))

We have se only when type is CURSEG_ALL_DATA_ATGC. We may need to change
IS_DATASEG()?

>  		atomic64_inc(&sbi->allocated_data_blocks);
>  
>  	up_write(&sit_i->sentry_lock);
>  
> -	if (page && IS_NODESEG(type)) {
> +	if (page && IS_NODESEG(se->type)) {
>  		fill_node_footer_blkaddr(page, NEXT_FREE_BLKADDR(sbi, curseg));
>  
>  		f2fs_inode_chksum_set(sbi, page);
> -- 
> 2.40.1