[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>
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e0e8492..a5e6891 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -415,6 +415,9 @@
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)