Re: [3.0-stable PATCH 35/36] xfs: zero allocation

To:	Dave Chinner <david@xxxxxxxxxxxxx>
Subject:	Re: [3.0-stable PATCH 35/36] xfs: zero allocation_args on the kernel stack
From:	Mark Tinguely <tinguely@xxxxxxx>
Date:	Wed, 12 Dec 2012 09:26:42 -0600
Cc:	stable@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx
In-reply-to:	<20121211235643.GR16353@dastard>
References:	<20121203144208.143464631@xxxxxxx> <20121203144312.044410710@xxxxxxx> <20121211235643.GR16353@dastard>
User-agent:	Mozilla/5.0 (X11; FreeBSD amd64; rv:9.0) Gecko/20120122 Thunderbird/9.0

On 12/11/12 17:56, Dave Chinner wrote:

On Mon, Dec 03, 2012 at 05:42:43PM -0600, Mark Tinguely wrote:

From: Mark Tinguely<tinguely@xxxxxxx>

Upstream commit: a00416844b8f4b0106344bdfd90fe45a854b1d05

     xfs: zero allocation_args on the kernel stack

     Zero the kernel stack space that makes up the xfs_alloc_arg structures.


Without the stack switching patches in the tree, this doesn't fix
any real problem.

Cheers,

Dave.


There are other users of the xfs_alloc_arg.userdata other than the
former version of the allocation worker.

--Mark.

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[3.0-stable PATCH 29/36] xfs: xfs_vm_writepage clear iomap_valid when, (continued) [3.0-stable PATCH 29/36] xfs: xfs_vm_writepage clear iomap_valid when, Mark Tinguely [3.0-stable PATCH 28/36] xfs: fix memory reclaim deadlock on agi buffer, Mark Tinguely [3.0-stable PATCH 02/36] xfs: fix allocation length overflow in xfs_bmapi_write(), Mark Tinguely [3.0-stable PATCH 06/36] xfs: fallback to vmalloc for large buffers in xfs_attrmulti_attr_get, Mark Tinguely [3.0-stable PATCH 30/36] xfs: fix allocbt cursor leak in xfs_alloc_ag_vextent_near, Mark Tinguely Re: [3.0-stable PATCH 30/36] xfs: fix allocbt cursor leak in xfs_alloc_ag_vextent_near, Dave Chinner [3.0-stable PATCH 05/36] xfs: only take the ILOCK in xfs_reclaim_inode(), Mark Tinguely Re: [3.0-stable PATCH 05/36] xfs: only take the ILOCK in xfs_reclaim_inode(), Dave Chinner [3.0-stable PATCH 35/36] xfs: zero allocation_args on the kernel stack, Mark Tinguely Re: [3.0-stable PATCH 35/36] xfs: zero allocation_args on the kernel stack, Dave Chinner Re: [3.0-stable PATCH 35/36] xfs: zero allocation_args on the kernel stack, Mark Tinguely <= Re: [3.0-stable PATCH 35/36] xfs: zero allocation_args on the kernel stack, Dave Chinner [3.0-stable PATCH 34/36] xfs: stop the sync worker before xfs_unmountfs, Mark Tinguely [3.0-stable PATCH 31/36] xfs: shutdown xfs_sync_worker before the log, Mark Tinguely Re: [3.0-stable PATCH 31/36] xfs: shutdown xfs_sync_worker before the log, Dave Chinner [3.0-stable PATCH 32/36] xfs: really fix the cursor leak in xfs_alloc_ag_vextent_near, Mark Tinguely [3.0-stable PATCH 33/36] xfs: check for stale inode before acquiring iflock on push, Mark Tinguely [3.0-stable PATCH 36/36] xfs: only update the last_sync_lsn when a transaction completes, Mark Tinguely Re: [3.0-stable PATCH 36/36] xfs: only update the last_sync_lsn when a transaction completes, Dave Chinner Re: [3.0-stable PATCH 36/36] xfs: only update the last_sync_lsn when a transaction completes, Ben Myers Re: [3.0-stable PATCH 00/36] Proposed 3.0-stable bug patches, Ben Myers

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Re: [3.0-stable PATCH 35/36] xfs: zero allocation_args on the kernel sta