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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-14 21:39:21 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-14 21:39:21 +0300 |
| commit | 0c85ce135456a3927f552e738f730c47ac905ac3 (patch) | |
| tree | b435737bea02303cb81f01398b52738a7271e5bb | |
| parent | 577d9460d3d0a69b96f749f974642441ae186a7f (diff) | |
| parent | 68d41d8c94a31dfb8233ab90b9baf41a2ed2da68 (diff) | |
| download | linux-0c85ce135456a3927f552e738f730c47ac905ac3.tar.xz | |
Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fix from Ingo Molnar:
"A single fix for a locking statistics bug"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/lockdep: Fix lock used or unused stats error
| -rw-r--r-- | kernel/locking/lockdep_proc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c index 9c49ec645d8b..65b6a1600c8f 100644 --- a/kernel/locking/lockdep_proc.c +++ b/kernel/locking/lockdep_proc.c @@ -210,6 +210,7 @@ static int lockdep_stats_show(struct seq_file *m, void *v) nr_hardirq_read_safe = 0, nr_hardirq_read_unsafe = 0, sum_forward_deps = 0; +#ifdef CONFIG_PROVE_LOCKING list_for_each_entry(class, &all_lock_classes, lock_entry) { if (class->usage_mask == 0) @@ -241,13 +242,13 @@ static int lockdep_stats_show(struct seq_file *m, void *v) if (class->usage_mask & LOCKF_ENABLED_HARDIRQ_READ) nr_hardirq_read_unsafe++; -#ifdef CONFIG_PROVE_LOCKING sum_forward_deps += lockdep_count_forward_deps(class); -#endif } #ifdef CONFIG_DEBUG_LOCKDEP DEBUG_LOCKS_WARN_ON(debug_atomic_read(nr_unused_locks) != nr_unused); #endif + +#endif seq_printf(m, " lock-classes: %11lu [max: %lu]\n", nr_lock_classes, MAX_LOCKDEP_KEYS); seq_printf(m, " direct dependencies: %11lu [max: %lu]\n", |