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poll: kill poll_does_not_wait()

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Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/r/20250107162743.GA18947@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Oleg Nesterov 2025-01-07 17:27:43 +01:00 committed by Christian Brauner
parent b2849867b3
commit f005bf18a5
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GPG Key ID: 91C61BC06578DCA2
1 changed files with 3 additions and 13 deletions
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16
include/linux/poll.h
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@ -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