[Xen-changelog] [xen-unstable] xentrace: Ensure virq gets sent even if we exactly hit the half water mark.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1198057895 0
# Node ID 7c98b9177b15990b8ac267d70960da1a9b2dff4e
# Parent  2900e4dacaa7c15b8a392bea58588c72f6899d9e
xentrace: Ensure virq gets sent even if we exactly hit the half water mark.
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
---
 xen/common/trace.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff -r 2900e4dacaa7 -r 7c98b9177b15 xen/common/trace.c
--- a/xen/common/trace.c        Mon Dec 17 09:56:12 2007 -0700
+++ b/xen/common/trace.c        Wed Dec 19 09:51:35 2007 +0000
@@ -485,8 +485,8 @@ void __trace_var(u32 event, int cycles, 
     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);
 }
 

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