From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from forward-corp1o.mail.yandex.net (forward-corp1o.mail.yandex.net [IPv6:2a02:6b8:0:1a2d::1010]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 381A41A08AC for ; Wed, 15 Jul 2015 20:00:13 +1000 (AEST) Subject: [PATCH v2 1/3] drivers/xen/preempt: use need_resched() instead of should_resched() From: Konstantin Khlebnikov To: Peter Zijlstra Cc: linux-arch@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org, Alexander Graf , Paul Mackerras , David Vrabel , xen-devel@lists.xenproject.org, Boris Ostrovsky , linuxppc-dev@lists.ozlabs.org Date: Wed, 15 Jul 2015 12:52:01 +0300 Message-ID: <20150715095201.12246.49283.stgit@buzz> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 --- 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 a1800c150839..08cb419eb4e6 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.