A small code cleanup. There is no need to record stack trace and
immediatelly print it. We have a function dump_stack() that prints the
current stack.
Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
Index: linux-4.4-rc2/drivers/md/persistent-data/dm-block-manager.c
===================================================================
--- linux-4.4-rc2.orig/drivers/md/persistent-data/dm-block-manager.c
+++ linux-4.4-rc2/drivers/md/persistent-data/dm-block-manager.c
@@ -97,10 +97,6 @@ static void __del_holder(struct block_lo
static int __check_holder(struct block_lock *lock)
{
unsigned i;
-#ifdef CONFIG_DM_DEBUG_BLOCK_STACK_TRACING
- static struct stack_trace t;
- static stack_entries entries;
-#endif
for (i = 0; i < MAX_HOLDERS; i++) {
if (lock->holders[i] == current) {
@@ -110,12 +106,7 @@ static int __check_holder(struct block_l
print_stack_trace(lock->traces + i, 4);
DMERR("subsequent acquisition attempted here:");
- t.nr_entries = 0;
- t.max_entries = MAX_STACK;
- t.entries = entries;
- t.skip = 3;
- save_stack_trace(&t);
- print_stack_trace(&t, 4);
+ dump_stack();
#endif
return -EINVAL;
}
--
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