From c18ad0cf9cb0792f448b911eb3b268a35cc6934c Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 1 Nov 2018 00:24:50 +0000 Subject: tty/ldsem: Convert to regular lockdep annotations For some reason ldsem has its own lockdep wrappers, make them go away. Cc: Jiri Slaby Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Dmitry Safonov Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_ldsem.c | 51 ++++++++++++++----------------------------------- 1 file changed, 14 insertions(+), 37 deletions(-) (limited to 'drivers/tty') diff --git a/drivers/tty/tty_ldsem.c b/drivers/tty/tty_ldsem.c index b989ca26fc78..d4d0dbf4a6d9 100644 --- a/drivers/tty/tty_ldsem.c +++ b/drivers/tty/tty_ldsem.c @@ -34,29 +34,6 @@ #include -#ifdef CONFIG_DEBUG_LOCK_ALLOC -# define __acq(l, s, t, r, c, n, i) \ - lock_acquire(&(l)->dep_map, s, t, r, c, n, i) -# define __rel(l, n, i) \ - lock_release(&(l)->dep_map, n, i) -#define lockdep_acquire(l, s, t, i) __acq(l, s, t, 0, 1, NULL, i) -#define lockdep_acquire_nest(l, s, t, n, i) __acq(l, s, t, 0, 1, n, i) -#define lockdep_acquire_read(l, s, t, i) __acq(l, s, t, 1, 1, NULL, i) -#define lockdep_release(l, n, i) __rel(l, n, i) -#else -# define lockdep_acquire(l, s, t, i) do { } while (0) -# define lockdep_acquire_nest(l, s, t, n, i) do { } while (0) -# define lockdep_acquire_read(l, s, t, i) do { } while (0) -# define lockdep_release(l, n, i) do { } while (0) -#endif - -#ifdef CONFIG_LOCK_STAT -# define lock_stat(_lock, stat) lock_##stat(&(_lock)->dep_map, _RET_IP_) -#else -# define lock_stat(_lock, stat) do { } while (0) -#endif - - #if BITS_PER_LONG == 64 # define LDSEM_ACTIVE_MASK 0xffffffffL #else @@ -320,17 +297,17 @@ static int __ldsem_down_read_nested(struct ld_semaphore *sem, { long count; - lockdep_acquire_read(sem, subclass, 0, _RET_IP_); + rwsem_acquire_read(&sem->dep_map, subclass, 0, _RET_IP_); count = atomic_long_add_return(LDSEM_READ_BIAS, &sem->count); if (count <= 0) { - lock_stat(sem, contended); + lock_contended(&sem->dep_map, _RET_IP_); if (!down_read_failed(sem, count, timeout)) { - lockdep_release(sem, 1, _RET_IP_); + rwsem_release(&sem->dep_map, 1, _RET_IP_); return 0; } } - lock_stat(sem, acquired); + lock_acquired(&sem->dep_map, _RET_IP_); return 1; } @@ -339,17 +316,17 @@ static int __ldsem_down_write_nested(struct ld_semaphore *sem, { long count; - lockdep_acquire(sem, subclass, 0, _RET_IP_); + rwsem_acquire(&sem->dep_map, subclass, 0, _RET_IP_); count = atomic_long_add_return(LDSEM_WRITE_BIAS, &sem->count); if ((count & LDSEM_ACTIVE_MASK) != LDSEM_ACTIVE_BIAS) { - lock_stat(sem, contended); + lock_contended(&sem->dep_map, _RET_IP_); if (!down_write_failed(sem, count, timeout)) { - lockdep_release(sem, 1, _RET_IP_); + rwsem_release(&sem->dep_map, 1, _RET_IP_); return 0; } } - lock_stat(sem, acquired); + lock_acquired(&sem->dep_map, _RET_IP_); return 1; } @@ -372,8 +349,8 @@ int ldsem_down_read_trylock(struct ld_semaphore *sem) while (count >= 0) { if (atomic_long_try_cmpxchg(&sem->count, &count, count + LDSEM_READ_BIAS)) { - lockdep_acquire_read(sem, 0, 1, _RET_IP_); - lock_stat(sem, acquired); + rwsem_acquire_read(&sem->dep_map, 0, 1, _RET_IP_); + lock_acquired(&sem->dep_map, _RET_IP_); return 1; } } @@ -398,8 +375,8 @@ int ldsem_down_write_trylock(struct ld_semaphore *sem) while ((count & LDSEM_ACTIVE_MASK) == 0) { if (atomic_long_try_cmpxchg(&sem->count, &count, count + LDSEM_WRITE_BIAS)) { - lockdep_acquire(sem, 0, 1, _RET_IP_); - lock_stat(sem, acquired); + rwsem_acquire(&sem->dep_map, 0, 1, _RET_IP_); + lock_acquired(&sem->dep_map, _RET_IP_); return 1; } } @@ -413,7 +390,7 @@ void ldsem_up_read(struct ld_semaphore *sem) { long count; - lockdep_release(sem, 1, _RET_IP_); + rwsem_release(&sem->dep_map, 1, _RET_IP_); count = atomic_long_add_return(-LDSEM_READ_BIAS, &sem->count); if (count < 0 && (count & LDSEM_ACTIVE_MASK) == 0) @@ -427,7 +404,7 @@ void ldsem_up_write(struct ld_semaphore *sem) { long count; - lockdep_release(sem, 1, _RET_IP_); + rwsem_release(&sem->dep_map, 1, _RET_IP_); count = atomic_long_add_return(-LDSEM_WRITE_BIAS, &sem->count); if (count < 0) -- cgit v1.2.3