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Subject[012/101] md/linear: avoid corrupting structure while waiting for rcu_free to complete.
2.6.33-longterm review patch.  If anyone has any objections, please let us know.


From: NeilBrown <>

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 <>
Signed-off-by: Greg Kroah-Hartman <>

drivers/md/linear.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- 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;

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