diff options
| author | Maxime Ripard <maxime@cerno.tech> | 2020-09-14 18:11:40 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2020-09-14 18:11:40 +0200 |
| commit | 00af6729b52ede86a08173c8d5f2c8cd9fa3390d (patch) | |
| tree | 6a8cec3575d5cd49fffadb372b85da5475a266b0 /kernel/locking/lockdep.c | |
| parent | drm: fix double free for gbo in drm_gem_vram_init and drm_gem_vram_create (diff) | |
| parent | Merge v5.9-rc5 into drm-next (diff) | |
| download | linux-00af6729b52ede86a08173c8d5f2c8cd9fa3390d.tar.gz linux-00af6729b52ede86a08173c8d5f2c8cd9fa3390d.zip | |
Merge drm/drm-next into drm-misc-next
Paul Cercueil needs some patches in -rc5 to apply new patches for ingenic
properly.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'kernel/locking/lockdep.c')
| -rw-r--r-- | kernel/locking/lockdep.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 2fad21d345b0..54b74fabf40c 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -3756,7 +3756,7 @@ void noinstr lockdep_hardirqs_on(unsigned long ip) skip_checks: /* we'll do an OFF -> ON transition: */ - this_cpu_write(hardirqs_enabled, 1); + __this_cpu_write(hardirqs_enabled, 1); trace->hardirq_enable_ip = ip; trace->hardirq_enable_event = ++trace->irq_events; debug_atomic_inc(hardirqs_on_events); @@ -3795,7 +3795,7 @@ void noinstr lockdep_hardirqs_off(unsigned long ip) /* * We have done an ON -> OFF transition: */ - this_cpu_write(hardirqs_enabled, 0); + __this_cpu_write(hardirqs_enabled, 0); trace->hardirq_disable_ip = ip; trace->hardirq_disable_event = ++trace->irq_events; debug_atomic_inc(hardirqs_off_events); @@ -4977,6 +4977,8 @@ void lock_acquire(struct lockdep_map *lock, unsigned int subclass, { unsigned long flags; + trace_lock_acquire(lock, subclass, trylock, read, check, nest_lock, ip); + if (unlikely(current->lockdep_recursion)) { /* XXX allow trylock from NMI ?!? */ if (lockdep_nmi() && !trylock) { @@ -5001,7 +5003,6 @@ void lock_acquire(struct lockdep_map *lock, unsigned int subclass, check_flags(flags); current->lockdep_recursion++; - trace_lock_acquire(lock, subclass, trylock, read, check, nest_lock, ip); __lock_acquire(lock, subclass, trylock, read, check, irqs_disabled_flags(flags), nest_lock, ip, 0, 0); lockdep_recursion_finish(); @@ -5013,13 +5014,15 @@ void lock_release(struct lockdep_map *lock, unsigned long ip) { unsigned long flags; + trace_lock_release(lock, ip); + if (unlikely(current->lockdep_recursion)) return; raw_local_irq_save(flags); check_flags(flags); + current->lockdep_recursion++; - trace_lock_release(lock, ip); if (__lock_release(lock, ip)) check_chain_key(current); lockdep_recursion_finish(); @@ -5205,8 +5208,6 @@ __lock_acquired(struct lockdep_map *lock, unsigned long ip) hlock->holdtime_stamp = now; } - trace_lock_acquired(lock, ip); - stats = get_lock_stats(hlock_class(hlock)); if (waittime) { if (hlock->read) @@ -5225,6 +5226,8 @@ void lock_contended(struct lockdep_map *lock, unsigned long ip) { unsigned long flags; + trace_lock_acquired(lock, ip); + if (unlikely(!lock_stat || !debug_locks)) return; @@ -5234,7 +5237,6 @@ void lock_contended(struct lockdep_map *lock, unsigned long ip) raw_local_irq_save(flags); check_flags(flags); current->lockdep_recursion++; - trace_lock_contended(lock, ip); __lock_contended(lock, ip); lockdep_recursion_finish(); raw_local_irq_restore(flags); @@ -5245,6 +5247,8 @@ void lock_acquired(struct lockdep_map *lock, unsigned long ip) { unsigned long flags; + trace_lock_contended(lock, ip); + if (unlikely(!lock_stat || !debug_locks)) return; |