diff mbox series

[5/5] poll: kill poll_does_not_wait()

Message ID 20250107162743.GA18947@redhat.com (mailing list archive)
State New
Headers show
Series poll_wait: add mb() to fix theoretical race between waitqueue_active() and .poll() | expand

Commit Message

Oleg Nesterov Jan. 7, 2025, 4:27 p.m. UTC 
It no longer has users.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
 include/linux/poll.h | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)
diff mbox series

Patch

diff --git a/include/linux/poll.h b/include/linux/poll.h
index 57b6d1ccd8bf..12bb18e8b978 100644
--- a/include/linux/poll.h
+++ b/include/linux/poll.h
@@ -25,14 +25,14 @@ 
 
 struct poll_table_struct;
 
-/* 
+/*
  * structures and helpers for f_op->poll implementations
  */
 typedef void (*poll_queue_proc)(struct file *, wait_queue_head_t *, struct poll_table_struct *);
 
 /*
- * Do not touch the structure directly, use the access functions
- * poll_does_not_wait() and poll_requested_events() instead.
+ * Do not touch the structure directly, use the access function
+ * poll_requested_events() instead.
  */
 typedef struct poll_table_struct {
 	poll_queue_proc _qproc;
@@ -53,16 +53,6 @@  static inline void poll_wait(struct file * filp, wait_queue_head_t * wait_addres
 	}
 }
 
-/*
- * Return true if it is guaranteed that poll will not wait. This is the case
- * if the poll() of another file descriptor in the set got an event, so there
- * is no need for waiting.
- */
-static inline bool poll_does_not_wait(const poll_table *p)
-{
-	return p == NULL || p->_qproc == NULL;
-}
-
 /*
  * Return the set of events that the application wants to poll for.
  * This is useful for drivers that need to know whether a DMA transfer has