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authorIngo Molnar <mingo@elte.hu>2006-01-09 15:59:21 -0800
committerIngo Molnar <mingo@hera.kernel.org>2006-01-09 15:59:21 -0800
commitde5097c2e73f826302cd8957c225b3725e0c7553 (patch)
tree3d56ab6fd891088ac55a9ef529faf4360391a22f /mm
parent408894ee4dd4debfdedd472eb4d8414892fc90f6 (diff)
[PATCH] mutex subsystem, more debugging code
more mutex debugging: check for held locks during memory freeing, task exit, enable sysrq printouts, etc. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/page_alloc.c3
-rw-r--r--mm/slab.c1
2 files changed, 4 insertions, 0 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e0e84924171..a5e6891f7bb 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -415,6 +415,9 @@ static void __free_pages_ok(struct page *page, unsigned int order)
int reserved = 0;
arch_free_page(page, order);
+ if (!PageHighMem(page))
+ mutex_debug_check_no_locks_freed(page_address(page),
+ page_address(page+(1<<order)));
#ifndef CONFIG_MMU
for (i = 1 ; i < (1 << order) ; ++i)
diff --git a/mm/slab.c b/mm/slab.c
index 1c46c638355..33aab345cd4 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3071,6 +3071,7 @@ void kfree(const void *objp)
local_irq_save(flags);
kfree_debugcheck(objp);
c = page_get_cache(virt_to_page(objp));
+ mutex_debug_check_no_locks_freed(objp, objp+obj_reallen(c));
__cache_free(c, (void *)objp);
local_irq_restore(flags);
}