diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/fork.c | 4 | ||||
| -rw-r--r-- | kernel/lockdep.c | 1 | ||||
| -rw-r--r-- | kernel/rwsem.c | 16 | ||||
| -rw-r--r-- | kernel/trace/blktrace.c | 1 |
4 files changed, 22 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index c509cc4a0d5..987b28a1f01 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1304,6 +1304,10 @@ static struct task_struct *copy_process(unsigned long clone_flags, p->memcg_batch.do_batch = 0; p->memcg_batch.memcg = NULL; #endif +#ifdef CONFIG_BCACHE + p->sequential_io = 0; + p->sequential_io_avg = 0; +#endif /* Perform scheduler related setup. Assign this task to a CPU. */ sched_fork(p); diff --git a/kernel/lockdep.c b/kernel/lockdep.c index 6a3bccba7e7..1f3186b37fd 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c @@ -2998,6 +2998,7 @@ void lockdep_init_map(struct lockdep_map *lock, const char *name, EXPORT_SYMBOL_GPL(lockdep_init_map); struct lock_class_key __lockdep_no_validate__; +EXPORT_SYMBOL_GPL(__lockdep_no_validate__); static int print_lock_nested_lock_not_held(struct task_struct *curr, diff --git a/kernel/rwsem.c b/kernel/rwsem.c index b3c6c3fcd84..cfff1435bdf 100644 --- a/kernel/rwsem.c +++ b/kernel/rwsem.c @@ -126,6 +126,15 @@ void _down_write_nest_lock(struct rw_semaphore *sem, struct lockdep_map *nest) EXPORT_SYMBOL(_down_write_nest_lock); +void down_read_non_owner(struct rw_semaphore *sem) +{ + might_sleep(); + + __down_read(sem); +} + +EXPORT_SYMBOL(down_read_non_owner); + void down_write_nested(struct rw_semaphore *sem, int subclass) { might_sleep(); @@ -136,6 +145,13 @@ void down_write_nested(struct rw_semaphore *sem, int subclass) EXPORT_SYMBOL(down_write_nested); +void up_read_non_owner(struct rw_semaphore *sem) +{ + __up_read(sem); +} + +EXPORT_SYMBOL(up_read_non_owner); + #endif diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index ed58a3216a6..b8b8560bfb9 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -1808,6 +1808,7 @@ void blk_fill_rwbs(char *rwbs, u32 rw, int bytes) rwbs[i] = '\0'; } +EXPORT_SYMBOL_GPL(blk_fill_rwbs); #endif /* CONFIG_EVENT_TRACING */ |