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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 /kernel
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 'kernel')
-rw-r--r--kernel/exit.c5
-rw-r--r--kernel/sched.c1
2 files changed, 6 insertions, 0 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index caceabf..309a46f 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -29,6 +29,7 @@
#include <linux/syscalls.h>
#include <linux/signal.h>
#include <linux/cn_proc.h>
+#include <linux/mutex.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
@@ -869,6 +870,10 @@ fastcall NORET_TYPE void do_exit(long code)
mpol_free(tsk->mempolicy);
tsk->mempolicy = NULL;
#endif
+ /*
+ * If DEBUG_MUTEXES is on, make sure we are holding no locks:
+ */
+ mutex_debug_check_no_locks_held(tsk);
/* PF_DEAD causes final put_task_struct after we schedule. */
preempt_disable();
diff --git a/kernel/sched.c b/kernel/sched.c
index 9273309..34a945b 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4386,6 +4386,7 @@ void show_state(void)
} while_each_thread(g, p);
read_unlock(&tasklist_lock);
+ mutex_debug_show_all_locks();
}
/**
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