| From | Paul Gortmaker <> | Subject | [v2.6.34-stable 030/165] md/linear: avoid corrupting structure while waiting for rcu_free to complete. | Date | Wed, 15 Aug 2012 15:46:14 -0400 |
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From: NeilBrown <neilb@suse.de>
------------------- This is a commit scheduled for the next v2.6.34 longterm release. http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git If you see a problem with using this for longterm, please comment. -------------------
commit 1b6afa17581027218088a18a9ceda600e0ddba7a upstream.
I don't know what I was thinking putting 'rcu' after a dynamically sized array! The array could still be in use when we call rcu_free() (That is the point) so we mustn't corrupt it.
Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> --- drivers/md/linear.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/linear.h b/drivers/md/linear.h index 0ce29b6..2f2da05 100644 --- a/drivers/md/linear.h +++ b/drivers/md/linear.h @@ -10,9 +10,9 @@ typedef struct dev_info dev_info_t; struct linear_private_data { + struct rcu_head rcu; sector_t array_sectors; dev_info_t disks[0]; - struct rcu_head rcu; }; -- 1.7.12.rc2
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