From: Jens Axboe <axboe@kernel.dk>
To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Cc: Jens Axboe <axboe@kernel.dk>
Subject: [PATCH 3/4] eventpoll: move expires to epoll_wq
Date: Fri, 7 Oct 2022 10:56:36 -0600 [thread overview]
Message-ID: <20221007165637.22374-4-axboe@kernel.dk> (raw)
In-Reply-To: <20221007165637.22374-1-axboe@kernel.dk>
This makes the expiration available to the wakeup handler. No functional
changes expected in this patch, purely in preparation for being able to
use the timeout on the wakeup side.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
fs/eventpoll.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 01b9dab2b68c..79aa61a951df 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1765,6 +1765,7 @@ static int ep_autoremove_wake_function(struct wait_queue_entry *wq_entry,
struct epoll_wq {
wait_queue_entry_t wait;
struct hrtimer timer;
+ ktime_t timeout_ts;
bool timed_out;
};
@@ -1825,7 +1826,7 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events,
{
int res, eavail;
u64 slack = 0;
- ktime_t expires, *to = NULL;
+ ktime_t *to = NULL;
struct epoll_wq ewq;
lockdep_assert_irqs_enabled();
@@ -1834,7 +1835,7 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events,
if (timeout && (timeout->tv_sec | timeout->tv_nsec)) {
slack = select_estimate_accuracy(timeout);
- to = &expires;
+ to = &ewq.timeout_ts;
*to = timespec64_to_ktime(*timeout);
} else if (timeout) {
/*
--
2.35.1
next prev parent reply other threads:[~2022-10-07 16:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-07 16:56 [PATCHSET RFC 0/4] Add support for epoll min_wait Jens Axboe
2022-10-07 16:56 ` [PATCH 1/4] eventpoll: cleanup branches around sleeping for events Jens Axboe
2022-10-07 16:56 ` [PATCH 2/4] eventpoll: split out wait handling Jens Axboe
2022-10-07 16:56 ` Jens Axboe [this message]
2022-10-07 16:56 ` [PATCH 4/4] eventpoll: add support for min-wait Jens Axboe
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