[Xen-devel] [PATCH] Fix incremental access to hypervisor console log

[Kouya Shimura <kouya@xxxxxxxxxxxxxx>]

"xenconsoled --log=hv" outputs duplicated messages to
/var/log/xen/hypervisor.log.

Signed-off-by: Kouya Shimura <kouya@xxxxxxxxxxxxxx>

diff -r 6e72f8c3c017 xen/drivers/char/console.c
--- a/xen/drivers/char/console.c        Tue Mar 09 18:15:52 2010 +0000
+++ b/xen/drivers/char/console.c        Fri Mar 12 19:17:26 2010 +0900
@@ -198,7 +198,7 @@ long read_console_ring(struct xen_sysctl
     sofar = 0;
 
     c = conringc;
-    if ( op->incremental && ((int32_t)(op->index - c) < 0) )
+    if ( op->incremental && ((int32_t)(op->index - c) > 0) )
         c = op->index;
 
     while ( (c != conringp) && (sofar < max) )

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