| commit | e9cbe5c4d29e052c38e500a06517b27c60f22c02 | |
| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | |
| Thu, 25 Jun 2009 19:31:37 +0000 (25 12:31 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Thu, 30 Jul 2009 21:39:04 +0000 (30 14:39 -0700) | ||
| tree | 807b57e4d94ba9d3add4058ebc8270e5cac11a9c | treesnapshot (tar.gz zip) |
| parent | 843f9d9fa71d3889169172b20ee07ae6e51c0be4 | commitdiff |
fix RCU-callback-after-kmem_cache_destroy problem in sl[aou]b
commit 7ed9f7e5db58c6e8c2b4b738a75d5dcd8e17aad5 upstream.
Jesper noted that kmem_cache_destroy() invokes synchronize_rcu() rather than
rcu_barrier() in the SLAB_DESTROY_BY_RCU case, which could result in RCU
callbacks accessing a kmem_cache after it had been destroyed.
Acked-by: Matt Mackall <mpm@selenic.com>
Reported-by: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 7ed9f7e5db58c6e8c2b4b738a75d5dcd8e17aad5 upstream.
Jesper noted that kmem_cache_destroy() invokes synchronize_rcu() rather than
rcu_barrier() in the SLAB_DESTROY_BY_RCU case, which could result in RCU
callbacks accessing a kmem_cache after it had been destroyed.
Acked-by: Matt Mackall <mpm@selenic.com>
Reported-by: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| mm/slab.c | diffblobblamehistory | |
| mm/slob.c | diffblobblamehistory | |
| mm/slub.c | diffblobblamehistory |