The patch titled
Subject: epoll: move eavail next to the list_empty_careful check
has been added to the -mm tree. Its filename is
epoll-move-eavail-next-to-the-list_empty_careful-check.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/epoll-move-eavail-next-to-the-list_empty_careful-check.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/epoll-move-eavail-next-to-the-list_empty_careful-check.patch
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------------------------------------------------------
From: Soheil Hassas Yeganeh <soheil@xxxxxxxxxx>
Subject: epoll: move eavail next to the list_empty_careful check
This is a no-op change and simply to make the code more coherent.
Link: https://lkml.kernel.org/r/20201106231635.3528496-5-soheil.kdev@xxxxxxxxx
Signed-off-by: Soheil Hassas Yeganeh <soheil@xxxxxxxxxx>
Suggested-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Reviewed-by: Willem de Bruijn <willemb@xxxxxxxxxx>
Reviewed-by: Khazhismel Kumykov <khazhy@xxxxxxxxxx>
Cc: Guantao Liu <guantaol@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/eventpoll.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/fs/eventpoll.c~epoll-move-eavail-next-to-the-list_empty_careful-check
+++ a/fs/eventpoll.c
@@ -1913,6 +1913,7 @@ fetch_events:
if (!eavail)
timed_out = !schedule_hrtimeout_range(to, slack,
HRTIMER_MODE_ABS);
+ __set_current_state(TASK_RUNNING);
/*
* We were woken up, thus go and try to harvest some events.
@@ -1922,8 +1923,6 @@ fetch_events:
eavail = 1;
} while (0);
- __set_current_state(TASK_RUNNING);
-
if (!list_empty_careful(&wait.entry)) {
write_lock_irq(&ep->lock);
/*
_
Patches currently in -mm which might be from soheil@xxxxxxxxxx are
epoll-check-for-events-when-removing-a-timed-out-thread-from-the-wait-queue.patch
epoll-simplify-signal-handling.patch
epoll-pull-fatal-signal-checks-into-ep_send_events.patch
epoll-move-eavail-next-to-the-list_empty_careful-check.patch
epoll-simplify-and-optimize-busy-loop-logic.patch
epoll-pull-all-code-between-fetch_events-and-send_event-into-the-loop.patch
epoll-replace-gotos-with-a-proper-loop.patch
epoll-eliminate-unnecessary-lock-for-zero-timeout.patch
