lkml.org 
[lkml]   [2011]   [Nov]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
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 <neilb@suse.de>

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: Greg Kroah-Hartman <gregkh@suse.de>

---
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;
};





\
 
 \ /
  Last update: 2011-11-03 03:05    [W:0.208 / U:5.328 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site