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@yandex-team.ru>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Graf <agraf@suse.de>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20150715095201.12246.49283.stgit@buzz
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/drivers/xen/preempt.c b/drivers/xen/preempt.c
index a1800c150839a79a3dabdae4ef52956346d5244a..08cb419eb4e63c90f30ea7cdb541d31c14da2391 100644 (file)
--- 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)
 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.
                /*
                 * Clear flag as we may be rescheduled on a different
                 * cpu.