linux-ext4 - Re: [PATCH 6/6] ext4: don't use the block freed but not yet committed during buddy initialization

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:	Sun, 2 Nov 2008 21:43:40 -0500
From:	Theodore Tso <tytso@....edu>
To:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Cc:	cmm@...ibm.com, sandeen@...hat.com, frederic.bohe@...l.net,
	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 6/6] ext4: don't use the block freed but not yet
	committed during buddy initialization

On Fri, Oct 31, 2008 at 10:20:59PM +0530, Aneesh Kumar K.V wrote:
> When we generate buddy cache(especially during resize) we need to make
> sure we don't use the blocks freed but not yet comitted. This make
> sure we have the right value of free blocks count in the group
> info and also in the bitmap. This also ensures the ordered mode
> consistency

Wouldn't this be fixed if we have resize call ext4_mb_free_blocks()
instead of having it regeneerate the buddy cache?

	   	     		     	   - 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