From: Valentin Schneider <valentin.schneider@arm.com>
To: linux-kernel@vger.kernel.org
Cc: Greentime Hu <green.hu@gmail.com>, Vincent Chen <deanbo422@gmail.com>
Subject: [PATCH 07/14] nds32: ex-exit: Remove unneeded need_resched() loop
Date: Mon, 11 Mar 2019 22:47:45 +0000 [thread overview]
Message-ID: <20190311224752.8337-8-valentin.schneider@arm.com> (raw)
In-Reply-To: <20190311224752.8337-1-valentin.schneider@arm.com>
Since the enabling and disabling of IRQs within preempt_schedule_irq()
is contained in a need_resched() loop, we don't need the outer arch
code loop.
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Vincent Chen <deanbo422@gmail.com>
---
arch/nds32/kernel/ex-exit.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/nds32/kernel/ex-exit.S b/arch/nds32/kernel/ex-exit.S
index 97ba15cd4180..1df02a793364 100644
--- a/arch/nds32/kernel/ex-exit.S
+++ b/arch/nds32/kernel/ex-exit.S
@@ -163,7 +163,7 @@ resume_kernel:
gie_disable
lwi $t0, [tsk+#TSK_TI_PREEMPT]
bnez $t0, no_work_pending
-need_resched:
+
lwi $t0, [tsk+#TSK_TI_FLAGS]
andi $p1, $t0, #_TIF_NEED_RESCHED
beqz $p1, no_work_pending
@@ -173,7 +173,7 @@ need_resched:
beqz $t0, no_work_pending
jal preempt_schedule_irq
- b need_resched
+ b no_work_pending
#endif
/*
--
2.20.1
next prev parent reply other threads:[~2019-03-11 22:48 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-11 22:47 [PATCH 00/14] entry: preempt_schedule_irq() callers scrub Valentin Schneider
2019-03-11 22:47 ` [PATCH 01/14] sched/core: Fix preempt_schedule() interrupt return comment Valentin Schneider
2019-03-11 22:47 ` [PATCH 02/14] c6x: entry: Remove unneeded need_resched() loop Valentin Schneider
2019-03-13 17:21 ` Mark Salter
2019-03-11 22:47 ` [PATCH 03/14] csky: " Valentin Schneider
2019-03-11 22:47 ` [PATCH 04/14] h8300: " Valentin Schneider
2019-03-11 22:47 ` [PATCH 05/14] microblaze: " Valentin Schneider
2019-03-11 22:47 ` [PATCH 06/14] MIPS: " Valentin Schneider
2019-03-14 18:13 ` Paul Burton
2019-03-14 18:38 ` Valentin Schneider
2019-05-10 16:16 ` Maciej W. Rozycki
2019-03-15 16:31 ` [PATCH v2] " Valentin Schneider
2019-03-19 23:18 ` Paul Burton
2019-03-11 22:47 ` Valentin Schneider [this message]
2019-04-24 7:18 ` [PATCH 07/14] nds32: ex-exit: " Greentime Hu
2019-03-11 22:47 ` [PATCH 08/14] powerpc: entry: " Valentin Schneider
2019-05-03 6:59 ` Michael Ellerman
2019-03-11 22:47 ` [PATCH 09/14] RISC-V: " Valentin Schneider
2019-03-11 22:47 ` [PATCH 10/14] sh: " Valentin Schneider
2019-03-11 22:47 ` [PATCH 11/14] sh64: " Valentin Schneider
2019-03-11 22:47 ` [PATCH 12/14] sparc64: rtrap: " Valentin Schneider
2019-03-11 23:13 ` David Miller
2019-03-12 9:43 ` Valentin Schneider
2019-03-11 22:47 ` [PATCH 13/14] x86/entry: " Valentin Schneider
2019-04-05 13:13 ` [tip:x86/entry] " tip-bot for Valentin Schneider
2019-03-11 22:47 ` [PATCH 14/14] xtensa: entry: " Valentin Schneider
2019-03-12 1:10 ` Max Filippov
2019-03-12 9:45 ` Valentin Schneider
2019-03-12 18:03 ` [PATCH 00/14] entry: preempt_schedule_irq() callers scrub Vineet Gupta
2019-03-12 18:18 ` Valentin Schneider
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