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| author | David Howells <dhowells@redhat.com> | 2019-09-24 17:07:45 +0200 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2019-10-31 16:12:23 +0100 |
| commit | f94df9890e98f2090c6a8d70c795134863b70201 (patch) | |
| tree | b8af2f2af5a1368a200d26002d61c6c2e59b7c1c /include | |
| parent | Remove the nr_exclusive argument from __wake_up_sync_key() (diff) | |
| download | linux-f94df9890e98f2090c6a8d70c795134863b70201.tar.xz linux-f94df9890e98f2090c6a8d70c795134863b70201.zip | |
Add wake_up_interruptible_sync_poll_locked()
Add a wakeup call for a case whereby the caller already has the waitqueue
spinlock held. This can be used by pipes to alter the ring buffer indices
and issue a wakeup under the same spinlock.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/wait.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/wait.h b/include/linux/wait.h index bb7676d396cd..3283c8d02137 100644 --- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -202,6 +202,7 @@ void __wake_up_locked_key(struct wait_queue_head *wq_head, unsigned int mode, vo void __wake_up_locked_key_bookmark(struct wait_queue_head *wq_head, unsigned int mode, void *key, wait_queue_entry_t *bookmark); void __wake_up_sync_key(struct wait_queue_head *wq_head, unsigned int mode, void *key); +void __wake_up_locked_sync_key(struct wait_queue_head *wq_head, unsigned int mode, void *key); void __wake_up_locked(struct wait_queue_head *wq_head, unsigned int mode, int nr); void __wake_up_sync(struct wait_queue_head *wq_head, unsigned int mode); @@ -229,6 +230,8 @@ void __wake_up_sync(struct wait_queue_head *wq_head, unsigned int mode); __wake_up(x, TASK_INTERRUPTIBLE, 1, poll_to_key(m)) #define wake_up_interruptible_sync_poll(x, m) \ __wake_up_sync_key((x), TASK_INTERRUPTIBLE, poll_to_key(m)) +#define wake_up_interruptible_sync_poll_locked(x, m) \ + __wake_up_locked_sync_key((x), TASK_INTERRUPTIBLE, poll_to_key(m)) #define ___wait_cond_timeout(condition) \ ({ \ |