linux-kernel - Re: [PATCH V3 2/2] fs/ext4/fsync.c: generic_file

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] [day] [month] [year] [list]

Date:	Tue, 29 Apr 2014 18:19:36 +0200
From:	Jan Kara <jack@...e.cz>
To:	Fabian Frederick <fabf@...net.be>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>, jack <jack@...e.cz>,
	hch <hch@...radead.org>, Viro <viro@...iv.linux.org.uk>,
	tytso <tytso@....edu>, akpm <akpm@...ux-foundation.org>
Subject: Re: [PATCH V3 2/2] fs/ext4/fsync.c: generic_file_fsync call based on
 barrier flag

On Mon 28-04-14 23:15:08, Fabian Frederick wrote:
> generic_file_fsync has been updated to issue a flush for
> older filesystems.
> 
> This patch tests for barrier flag in ext4 mount flags
> and calls the right function.
> 
> Suggested-by: Jan Kara <jack@...e.cz>
> Suggested-by: Christoph Hellwig <hch@...radead.org>
> Cc: Jan Kara <jack@...e.cz>
> Cc: Christoph Hellwig <hch@...radead.org>
> Cc: Alexander Viro <viro@...iv.linux.org.uk>
> Cc: "Theodore Ts'o" <tytso@....edu>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Signed-off-by: Fabian Frederick <fabf@...net.be>
  The patch looks good. You can add:
Reviewed-by: Jan Kara <jack@...e.cz>

								Honza
> ---
>  fs/ext4/fsync.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
> index a8bc47f..fa82c0a 100644
> --- a/fs/ext4/fsync.c
> +++ b/fs/ext4/fsync.c
> @@ -108,6 +108,10 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
>  
>  	if (!journal) {
>  		ret = generic_file_fsync(file, start, end, datasync);
> +		if (test_opt(inode->i_sb, BARRIER))
> +			ret = generic_file_fsync(file, start, end, datasync);
> +		else
> +			ret = __generic_file_fsync(file, start, end, datasync);
>  		if (!ret && !hlist_empty(&inode->i_dentry))
>  			ret = ext4_sync_parent(inode);
>  		goto out;
> -- 
> 1.8.4.5
> 
-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/