linux-kernel - Re: [PATCH] f2fs: expose some sectors to user in inline data or dentry case

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <6ecc1778-bcf8-c07d-037a-dd733e247fa9@huawei.com>
Date:   Mon, 16 Oct 2017 11:11:28 +0800
From:   Chao Yu <yuchao0@...wei.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: [PATCH] f2fs: expose some sectors to user in inline data or
 dentry case

On 2017/10/14 1:31, Jaegeuk Kim wrote:
> If there's some data written through inline data or dentry, we need to shouw
> st_blocks. This fixes reporting zero blocks even though there is small written
> data.
> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>

Reviewed-by: Chao Yu <yuchao0@...wei.com>

Thanks,

> ---
>  fs/f2fs/file.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> index 2eb3efe92018..f7be6c394fa8 100644
> --- a/fs/f2fs/file.c
> +++ b/fs/f2fs/file.c
> @@ -698,6 +698,11 @@ int f2fs_getattr(const struct path *path, struct kstat *stat,
>  				  STATX_ATTR_NODUMP);
>  
>  	generic_fillattr(inode, stat);
> +
> +	/* we need to show initial sectors used for inline_data/dentries */
> +	if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode))
> +		stat->blocks += (stat->size + 511) >> 9;
> +
>  	return 0;
>  }
>  
>