linux-ext4 - Re: [PATCH] Rearrange i_flags to be consistent with FS_IOC

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Message-ID: <29431.1278423623@redhat.com>
Date:	Tue, 06 Jul 2010 14:40:23 +0100
From:	David Howells <dhowells@...hat.com>
To:	Dave Chinner <david@...morbit.com>
Cc:	dhowells@...hat.com, viro@...IV.linux.org.uk,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-ext4@...r.kernel.org
Subject: Re: [PATCH] Rearrange i_flags to be consistent with FS_IOC_GETFLAGS

Dave Chinner <david@...morbit.com> wrote:

> Further, it opens up the possibility that further down the track
> someone modifies S_* flag values (say when adding some XFS
> functionality) and corrupts extN filesystems all over the place.
> There isn't even compiler guards to catch someone modifying the S_*
> flags in a way that makes it incompatible with the extN on-disk
> definitions.

That occurred to me after I sent the patch.  I can add some preprocessor guards
for this.

David
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