The patch titled
Subject: mm/: remove caller signal_pending branch predictions
has been added to the -mm tree. Its filename is
mm-remove-caller-signal_pending-branch-predictions.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-remove-caller-signal_pending-branch-predictions.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-remove-caller-signal_pending-branch-predictions.patch
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------------------------------------------------------
From: Davidlohr Bueso <dave@xxxxxxxxxxxx>
Subject: mm/: remove caller signal_pending branch predictions
This is already done for us internally by the signal machinery.
Link: http://lkml.kernel.org/r/20181116002713.8474-5-dave@xxxxxxxxxxxx
Signed-off-by: Davidlohr Bueso <dave@xxxxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/filemap.c~mm-remove-caller-signal_pending-branch-predictions
+++ a/mm/filemap.c
@@ -1125,7 +1125,7 @@ static inline int wait_on_page_bit_commo
break;
}
- if (unlikely(signal_pending_state(state, current))) {
+ if (signal_pending_state(state, current)) {
ret = -EINTR;
break;
}
--- a/mm/gup.c~mm-remove-caller-signal_pending-branch-predictions
+++ a/mm/gup.c
@@ -727,7 +727,7 @@ retry:
* If we have a pending SIGKILL, don't keep faulting pages and
* potentially allocating memory.
*/
- if (unlikely(fatal_signal_pending(current))) {
+ if (fatal_signal_pending(current)) {
ret = -ERESTARTSYS;
goto out;
}
--- a/mm/hugetlb.c~mm-remove-caller-signal_pending-branch-predictions
+++ a/mm/hugetlb.c
@@ -4200,7 +4200,7 @@ long follow_hugetlb_page(struct mm_struc
* If we have a pending SIGKILL, don't keep faulting pages and
* potentially allocating memory.
*/
- if (unlikely(fatal_signal_pending(current))) {
+ if (fatal_signal_pending(current)) {
remainder = 0;
break;
}
_
Patches currently in -mm which might be from dave@xxxxxxxxxxxx are
fs-epoll-remove-max_nests-argument-from-ep_call_nested.patch
fs-epoll-simplify-ep_send_events_proc-ready-list-loop.patch
fs-epoll-drop-ovflist-branch-prediction.patch
fs-epoll-robustify-ep-mtx-held-checks.patch
fs-epoll-reduce-the-scope-of-wq-lock-in-epoll_wait.patch
fs-epoll-reduce-the-scope-of-wq-lock-in-epoll_wait-fix.patch
fs-epoll-avoid-barrier-after-an-epoll_wait2-timeout.patch
fs-epoll-avoid-barrier-after-an-epoll_wait2-timeout-fix.patch
fs-epoll-rename-check_events-label-to-send_events.patch
fs-epoll-deal-with-wait_queue-only-once.patch
locking-mutex-remove-caller-signal_pending-branch-predictions.patch
kernel-sched-remove-caller-signal_pending-branch-predictions.patch
arch-arc-remove-caller-signal_pending_branch-predictions.patch
mm-remove-caller-signal_pending-branch-predictions.patch
fs-remove-caller-signal_pending-branch-predictions.patch
