linux-kernel - Re: [PATCH 2/3] f2fs: fix to add missing iput() in gc_data

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Message-ID: <Zjwc5QGJfm6XXzOX@google.com>
Date: Thu, 9 May 2024 00:46:29 +0000
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 2/3] f2fs: fix to add missing iput() in gc_data_segment()

On 05/06, Chao Yu wrote:
> During gc_data_segment(), if inode state is abnormal, it missed to call
> iput(), fix it.
> 
> Fixes: 132e3209789c ("f2fs: remove false alarm on iget failure during GC")
> Fixes: 9056d6489f5a ("f2fs: fix to do sanity check on inode type during garbage collection")
> Signed-off-by: Chao Yu <chao@...nel.org>
> ---
>  fs/f2fs/gc.c | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
> index 8852814dab7f..e86c7f01539a 100644
> --- a/fs/f2fs/gc.c
> +++ b/fs/f2fs/gc.c
> @@ -1554,10 +1554,15 @@ static int gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
>  			int err;
>  
>  			inode = f2fs_iget(sb, dni.ino);
> -			if (IS_ERR(inode) || is_bad_inode(inode) ||
> -					special_file(inode->i_mode))
> +			if (IS_ERR(inode))
>  				continue;
>  
> +			if (is_bad_inode(inode) ||
> +					special_file(inode->i_mode)) {
> +				iput(inode);

iget_failed() called iput()?


> +				continue;
> +			}
> +
>  			err = f2fs_gc_pinned_control(inode, gc_type, segno);
>  			if (err == -EAGAIN) {
>  				iput(inode);
> -- 
> 2.40.1