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| author | David S. Miller <davem@davemloft.net> | 2020-01-19 22:10:04 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-19 22:10:04 +0100 |
| commit | b3f7e3f23a763ccaae7b52d88d2c91e66c80d406 (patch) | |
| tree | e00e90eb161305ed9895315ba12e30ac17de9523 /kernel/locking/lockdep.c | |
| parent | 4ee9e6e027c06eb1dd1cdbe025d461e407ece755 (diff) | |
| parent | 7008ee121089b8193aea918b98850fe87d996508 (diff) | |
| download | linux-b3f7e3f23a763ccaae7b52d88d2c91e66c80d406.tar.bz2 | |
Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net
Diffstat (limited to 'kernel/locking/lockdep.c')
| -rw-r--r-- | kernel/locking/lockdep.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 32282e7112d3..32406ef0d6a2 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -482,7 +482,7 @@ static struct lock_trace *save_trace(void) struct lock_trace *trace, *t2; struct hlist_head *hash_head; u32 hash; - unsigned int max_entries; + int max_entries; BUILD_BUG_ON_NOT_POWER_OF_2(STACK_TRACE_HASH_SIZE); BUILD_BUG_ON(LOCK_TRACE_SIZE_IN_LONGS >= MAX_STACK_TRACE_ENTRIES); @@ -490,10 +490,8 @@ static struct lock_trace *save_trace(void) trace = (struct lock_trace *)(stack_trace + nr_stack_trace_entries); max_entries = MAX_STACK_TRACE_ENTRIES - nr_stack_trace_entries - LOCK_TRACE_SIZE_IN_LONGS; - trace->nr_entries = stack_trace_save(trace->entries, max_entries, 3); - if (nr_stack_trace_entries >= MAX_STACK_TRACE_ENTRIES - - LOCK_TRACE_SIZE_IN_LONGS - 1) { + if (max_entries <= 0) { if (!debug_locks_off_graph_unlock()) return NULL; @@ -502,6 +500,7 @@ static struct lock_trace *save_trace(void) return NULL; } + trace->nr_entries = stack_trace_save(trace->entries, max_entries, 3); hash = jhash(trace->entries, trace->nr_entries * sizeof(trace->entries[0]), 0); |