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authorMikulas Patocka <mpatocka@redhat.com>2015-11-23 19:12:05 -0500
committerMike Snitzer <snitzer@redhat.com>2015-12-10 10:38:56 -0500
commit313c9b97361fca3a606fc74de86bee6dc7988bca (patch)
tree0809a86dca1f372844868bebbc54e4de7db23366 /drivers/md/persistent-data
parentfe3265b180d6282648f03bc6ac3958c733df01c2 (diff)
downloadlinux-313c9b97361fca3a606fc74de86bee6dc7988bca.tar.bz2
dm block manager: cleanup code that prints stacktrace
There is no need to record stack trace and immediately print it. Just use dump_stack() to print the current stack. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/persistent-data')
-rw-r--r--drivers/md/persistent-data/dm-block-manager.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/drivers/md/persistent-data/dm-block-manager.c b/drivers/md/persistent-data/dm-block-manager.c
index f2393ba838eb..1e33dd51c21f 100644
--- a/drivers/md/persistent-data/dm-block-manager.c
+++ b/drivers/md/persistent-data/dm-block-manager.c
@@ -97,10 +97,6 @@ static void __del_holder(struct block_lock *lock, struct task_struct *task)
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_lock *lock)
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;
}