linux-kernel - [tip:sched/core] sched/preempt, xen: Use need_resched() instead of should

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <tip-0fa2f5cb2b0ecd8d56baa51f35f09aab234eb0bf@git.kernel.org>
Date:	Mon, 3 Aug 2015 10:07:37 -0700
From:	tip-bot for Konstantin Khlebnikov <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	paulus@...ba.org, boris.ostrovsky@...cle.com, mingo@...nel.org,
	hpa@...or.com, tglx@...utronix.de, linux-kernel@...r.kernel.org,
	david.vrabel@...rix.com, peterz@...radead.org, agraf@...e.de,
	torvalds@...ux-foundation.org, khlebnikov@...dex-team.ru,
	efault@....de
Subject: [tip:sched/core] sched/preempt, xen: Use need_resched()
  instead of should_resched()

Commit-ID:  0fa2f5cb2b0ecd8d56baa51f35f09aab234eb0bf
Gitweb:     http://git.kernel.org/tip/0fa2f5cb2b0ecd8d56baa51f35f09aab234eb0bf
Author:     Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
AuthorDate: Wed, 15 Jul 2015 12:52:01 +0300
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 3 Aug 2015 12:21:23 +0200

sched/preempt, xen: Use need_resched() instead of should_resched()

This code is used only when CONFIG_PREEMPT=n and only in non-atomic context:
xen_in_preemptible_hcall is set only in privcmd_ioctl_hypercall().
Thus preempt_count is zero and should_resched() is equal to need_resched().

Signed-off-by: Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: Alexander Graf <agraf@...e.de>
Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com>
Cc: David Vrabel <david.vrabel@...rix.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Link: http://lkml.kernel.org/r/20150715095201.12246.49283.stgit@buzz
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 drivers/xen/preempt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/preempt.c b/drivers/xen/preempt.c
index a1800c1..08cb419 100644
--- a/drivers/xen/preempt.c
+++ b/drivers/xen/preempt.c
@@ -31,7 +31,7 @@ EXPORT_SYMBOL_GPL(xen_in_preemptible_hcall);
 asmlinkage __visible void xen_maybe_preempt_hcall(void)
 {
 	if (unlikely(__this_cpu_read(xen_in_preemptible_hcall)
-		     && should_resched())) {
+		     && need_resched())) {
 		/*
 		 * Clear flag as we may be rescheduled on a different
 		 * cpu.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/