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73d08db
2008 Jun 10
1
[PATCH] xen: Use wmb instead of rmb in xen_evtchn_do_upcall().
...xen_evtchn_do_upcall().
Cc: Samuel Thibault <samuel.thibault at eu.citrix.com>
Signed-off-by: Isaku Yamahata <yamahata at valinux.co.jp>
---
drivers/xen/events.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 73d78dc..332dd63 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -529,7 +529,7 @@ void xen_evtchn_do_upcall(struct pt_regs *regs)
#ifndef CONFIG_X86 /* No need for a barrier -- XCHG is a barrier on x86. */
/* Clear master flag /before/ clearing selector flag. */
- rmb();
+ wmb();
#...