From: Keir Fraser <keir.fraser@citrix.com>
Date: Wed, 19 Dec 2007 09:51:35 +0000 (+0000)
Subject: xentrace: Ensure virq gets sent even if we exactly hit the half water mark.
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~14445^2~122
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=2fa391823baa5055b180d947879f4d7cde71e6ea;p=xen.git

xentrace: Ensure virq gets sent even if we exactly hit the half water mark.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
---

diff --git a/xen/common/trace.c b/xen/common/trace.c
index bf1d1fe7fa..9af70798bb 100644
--- a/xen/common/trace.c
+++ b/xen/common/trace.c
@@ -485,8 +485,8 @@ void __trace_var(u32 event, int cycles, int extra, unsigned char *extra_data)
     local_irq_restore(flags);
 
     /* Notify trace buffer consumer that we've crossed the high water mark. */
-    if ( started_below_highwater
-         && ((buf->prod - buf->cons) > t_buf_highwater) )
+    if ( started_below_highwater &&
+         ((buf->prod - buf->cons) >= t_buf_highwater) )
         raise_softirq(TRACE_SOFTIRQ);
 }