We will be calling free_debug_processing with interrupts disabled
in some case when the later patches are applied. Some of the
functions called by free_debug_processing expect interrupts to be
off.
Signed-off-by: Christoph Lameter <cl@xxxxxxxxx>
---
mm/slub.c | 6 ++++++
1 file changed, 6 insertions(+)
Index: linux-2.6/mm/slub.c
===================================================================
--- linux-2.6.orig/mm/slub.c 2011-03-23 16:25:00.000000000 -0500
+++ linux-2.6/mm/slub.c 2011-03-24 08:50:37.000000000 -0500
@@ -1024,6 +1024,10 @@ bad:
static noinline int free_debug_processing(struct kmem_cache *s,
struct page *page, void *object, unsigned long addr)
{
+ unsigned long flags;
+
+ local_irq_save(flags);
+
if (!check_slab(s, page))
goto fail;
@@ -1059,10 +1063,12 @@ static noinline int free_debug_processin
set_track(s, object, TRACK_FREE, addr);
trace(s, page, object, 0);
init_object(s, object, SLUB_RED_INACTIVE);
+ local_irq_restore(flags);
return 1;
fail:
slab_fix(s, "Object at 0x%p not freed", object);
+ local_irq_restore(flags);
return 0;
}
--
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