linux-ext4 - Re: [PATCH 0/4][RFC] remove duplicated check from ext4, xfs, btrfs, and ocfs2

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, 20 Nov 2012 18:46:46 +0800
From:	Zheng Liu <gnehzuil.liu@...il.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
	xfs@....sgi.com, linux-btrfs@...r.kernel.org,
	ocfs2-devel@....oracle.com, yan@...ux.vnet.ibm.com,
	Zheng Liu <wenqing.lz@...bao.com>
Subject: Re: [PATCH 0/4][RFC] remove duplicated check from ext4, xfs, btrfs,
 and ocfs2

On Tue, Nov 20, 2012 at 05:14:53AM -0500, Christoph Hellwig wrote:
> On Tue, Nov 20, 2012 at 05:29:41PM +0800, Zheng Liu wrote:
> > Hi all,
> > 
> > This patch series tries to remove a sanity check in fallocate from specific
> > filesystems because vfs has already checked it.
> > 
> > I am not very familiar with why we need to do this duplicated check.  Please let
> > me know if I miss something.
> 
> Each filesystem driver checks to see if a flag that it doesn't support
> gets passed down.  This was done with the intention that we can add new
> flags to the VFS without having to update every filesystem.

Thanks for your explanation.

Regards,
                                                - Zheng
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html