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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 /arch/i386/mm/pageattr.c
parent408894ee4dd4debfdedd472eb4d8414892fc90f6 (diff)
downloadop-kernel-dev-de5097c2e73f826302cd8957c225b3725e0c7553.zip
op-kernel-dev-de5097c2e73f826302cd8957c225b3725e0c7553.tar.gz
[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 'arch/i386/mm/pageattr.c')
-rw-r--r--arch/i386/mm/pageattr.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/i386/mm/pageattr.c b/arch/i386/mm/pageattr.c
index c30a16d..e8a5355 100644
--- a/arch/i386/mm/pageattr.c
+++ b/arch/i386/mm/pageattr.c
@@ -222,6 +222,10 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
{
if (PageHighMem(page))
return;
+ if (!enable)
+ mutex_debug_check_no_locks_freed(page_address(page),
+ page_address(page+numpages));
+
/* the return value is ignored - the calls cannot fail,
* large pages are disabled at boot time.
*/
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