tree 9a8dcbf464b150d68daf0295e1ce644c1ec6d987
parent 013e896373fc53f3d3c039364a25ccbd1fc0729a
author Christoph Lameter <cl@linux.com> 1310665752 -0500
committer Pekka Enberg <penberg@kernel.org> 1310991422 +0300

slub: disable interrupts in cmpxchg_double_slab when falling back to pagelock

Split cmpxchg_double_slab into two functions. One for the case where we know that
interrupts are disabled (and therefore the fallback does not need to disable
interrupts) and one for the other cases where fallback will also disable interrupts.

This fixes the issue that __slab_free called cmpxchg_double_slab in some scenarios
without disabling interrupts.

Tested-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>