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From: Jaegeuk Kim <jaegeuk@kernel.org>
To: Chao Yu <yuchao0@huawei.com>
Cc: linux-f2fs-devel@lists.sourceforge.net,
	linux-kernel@vger.kernel.org, chao@kernel.org
Subject: Re: [PATCH 3/3] f2fs: fix to check f2fs_compressed_file() in f2fs_bmap()
Date: Fri, 27 Mar 2020 12:32:33 -0700	[thread overview]
Message-ID: <20200327193233.GB186975@google.com> (raw)
In-Reply-To: <20200327102953.104035-3-yuchao0@huawei.com>

On 03/27, Chao Yu wrote:
> Otherwise, for compressed inode, returned physical block address
> may be wrong.

We can use bmap to check the allocated (non)compressed blocks.

> 
> Signed-off-by: Chao Yu <yuchao0@huawei.com>
> ---
>  fs/f2fs/data.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
> index 24643680489b..f22f3ba10a48 100644
> --- a/fs/f2fs/data.c
> +++ b/fs/f2fs/data.c
> @@ -3591,6 +3591,8 @@ static sector_t f2fs_bmap(struct address_space *mapping, sector_t block)
>  
>  	if (f2fs_has_inline_data(inode))
>  		return 0;
> +	if (f2fs_compressed_file(inode))
> +		return 0;
>  
>  	/* make sure allocating whole blocks */
>  	if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY))
> -- 
> 2.18.0.rc1

  reply	other threads:[~2020-03-27 19:32 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-27 10:29 [PATCH 1/3] f2fs: fix to disable compression on directory Chao Yu
2020-03-27 10:29 ` [PATCH 2/3] f2fs: keep inline_data when compression conversion Chao Yu
2020-03-27 10:29 ` [PATCH 3/3] f2fs: fix to check f2fs_compressed_file() in f2fs_bmap() Chao Yu
2020-03-27 19:32   ` Jaegeuk Kim [this message]
2020-03-28  8:38     ` Chao Yu

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