linux-ext4 - Re: [PATCH 2/4]ext4: Remove unneeded BUG_ON() in ext4_move

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]

Message-ID: <20090906031338.GC3055@mit.edu>
Date:	Sat, 5 Sep 2009 23:13:38 -0400
From:	Theodore Tso <tytso@....edu>
To:	Akira Fujita <a-fujita@...jp.nec.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 2/4]ext4: Remove unneeded BUG_ON() in
	ext4_move_extents()

On Wed, Sep 02, 2009 at 12:17:57PM +0900, Akira Fujita wrote:
> ext4: Remove unneeded BUG_ON() in ext4_move_extents()
> 
> From: Akira Fujita <a-fujita@...jp.nec.com>
> 
> ext4_move_extents() checks with BUG_ON() whether
> the exchanged blocks count accords with request blocks count.
> But, if the target range (orig_start + len) includes sparse block(s),
> 'moved_len' (exchanged blocks count) does not accord with
> 'len' (request blocks count),
> since sparse block is not counted in 'moved_len'.
> Therefore we hit BUG_ON(), though it succeeded.

Added to the ext4 patch queue.

					- Ted
--
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