linux-kernel - RE: [f2fs-dev] [PATCH 2/2] f2fs: put the inode page when error was occurred

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Message-id: <006b01d002f0$f6da1b80$e48e5280$@samsung.com>
Date:	Tue, 18 Nov 2014 13:30:46 +0800
From:	Chao Yu <chao2.yu@...sung.com>
To:	'Jaegeuk Kim' <jaegeuk@...nel.org>, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net
Subject: RE: [f2fs-dev] [PATCH 2/2] f2fs: put the inode page when error was
	occurred

Hi Jaegeuk,

> -----Original Message-----
> From: Jaegeuk Kim [mailto:jaegeuk@...nel.org]
> Sent: Tuesday, November 18, 2014 9:58 AM
> To: linux-kernel@...r.kernel.org; linux-fsdevel@...r.kernel.org;
> linux-f2fs-devel@...ts.sourceforge.net
> Cc: Jaegeuk Kim
> Subject: [f2fs-dev] [PATCH 2/2] f2fs: put the inode page when error was occurred
> 
> We should put the inode page when error was occurred.
> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>

You can add Reviewed-by: Chao Yu <chao2.yu@...sung.com>
after the following issue is fixed.

> ---
>  fs/f2fs/data.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
> index 8f16443..12dd58a 100644
> --- a/fs/f2fs/data.c
> +++ b/fs/f2fs/data.c
> @@ -963,22 +963,22 @@ repeat:
>  		} else if (page->index == 0) {
>  			err = f2fs_convert_inline_page(&dn, page);
>  			if (err)
> -				goto unlock_fail;
> +				goto put_fail;
>  		} else {
>  			struct page *p = grab_cache_page(inode->i_mapping, 0);
>  			if (!p) {
>  				err = -ENOMEM;
> -				goto unlock_fail;
> +				goto put_fail;
>  			}
>  			err = f2fs_convert_inline_page(&dn, p);
>  			f2fs_put_page(p, 1);
>  			if (err)
> -				goto unlock_fail;
> +				goto put_fail;
>  		}
>  	}
>  	err = f2fs_reserve_block(&dn, index);
>  	if (err)
> -		goto unlock_fail;
> +		goto put_fail;

f2fs_reserve_block will do the clean work, we should not release dn again.

Thanks,
Yu

>  put_next:
>  	f2fs_put_dnode(&dn);
>  	f2fs_unlock_op(sbi);
> @@ -1021,6 +1021,8 @@ out:
>  	clear_cold_data(page);
>  	return 0;
> 
> +put_fail:
> +	f2fs_put_dnode(&dn);
>  unlock_fail:
>  	f2fs_unlock_op(sbi);
>  	f2fs_put_page(page, 1);
> --
> 2.1.1
> 
> 
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