diff options
| author | Minchan Kim <minchan@kernel.org> | 2022-01-15 15:16:57 -0800 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-02-11 12:13:55 +0100 |
| commit | c441e934b604a3b5f350a9104124cf6a3ba07a34 (patch) | |
| tree | f01b72cc4850b7425af837667774d32e099567bd /kernel/locking | |
| parent | 1dc01abad6544cb9d884071b626b706e37aa9601 (diff) | |
| download | lwn-c441e934b604a3b5f350a9104124cf6a3ba07a34.tar.gz lwn-c441e934b604a3b5f350a9104124cf6a3ba07a34.zip | |
locking: Add missing __sched attributes
This patch adds __sched attributes to a few missing places
to show blocked function rather than locking function
in get_wchan.
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220115231657.84828-1-minchan@kernel.org
Diffstat (limited to 'kernel/locking')
| -rw-r--r-- | kernel/locking/percpu-rwsem.c | 5 | ||||
| -rw-r--r-- | kernel/locking/rwsem.c | 2 |
2 files changed, 4 insertions, 3 deletions
diff --git a/kernel/locking/percpu-rwsem.c b/kernel/locking/percpu-rwsem.c index 70a32a576f3f..c9fdae94e098 100644 --- a/kernel/locking/percpu-rwsem.c +++ b/kernel/locking/percpu-rwsem.c @@ -7,6 +7,7 @@ #include <linux/rcupdate.h> #include <linux/sched.h> #include <linux/sched/task.h> +#include <linux/sched/debug.h> #include <linux/errno.h> int __percpu_init_rwsem(struct percpu_rw_semaphore *sem, @@ -162,7 +163,7 @@ static void percpu_rwsem_wait(struct percpu_rw_semaphore *sem, bool reader) __set_current_state(TASK_RUNNING); } -bool __percpu_down_read(struct percpu_rw_semaphore *sem, bool try) +bool __sched __percpu_down_read(struct percpu_rw_semaphore *sem, bool try) { if (__percpu_down_read_trylock(sem)) return true; @@ -211,7 +212,7 @@ static bool readers_active_check(struct percpu_rw_semaphore *sem) return true; } -void percpu_down_write(struct percpu_rw_semaphore *sem) +void __sched percpu_down_write(struct percpu_rw_semaphore *sem) { might_sleep(); rwsem_acquire(&sem->dep_map, 0, 0, _RET_IP_); diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c index 69aba4abe104..acde5d6f1254 100644 --- a/kernel/locking/rwsem.c +++ b/kernel/locking/rwsem.c @@ -1048,7 +1048,7 @@ out_nolock: /* * Wait until we successfully acquire the write lock */ -static struct rw_semaphore * +static struct rw_semaphore __sched * rwsem_down_write_slowpath(struct rw_semaphore *sem, int state) { long count; |