[Xen-devel] [PATCH 2 of 5] Mark data_size __read_mostly because its only written once

[Olaf Hering <olaf@xxxxxxxxx>]

# HG changeset patch
# User Olaf Hering <olaf@xxxxxxxxx>
# Date 1304697395 -7200
# Node ID 91c40bb4c01a331a41ab6a14a2b5ec7d12e86a76
# Parent  a19b5f66ce46efd6f8f697583f9bdbc2b567fdbd
Mark data_size __read_mostly because its only written once.

Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>

diff -r a19b5f66ce46 -r 91c40bb4c01a xen/common/trace.c
--- a/xen/common/trace.c        Fri May 06 17:56:35 2011 +0200
+++ b/xen/common/trace.c        Fri May 06 17:56:35 2011 +0200
@@ -54,7 +54,7 @@ static unsigned int t_info_pages;
 static DEFINE_PER_CPU_READ_MOSTLY(struct t_buf *, t_bufs);
 static DEFINE_PER_CPU_READ_MOSTLY(unsigned char *, t_data);
 static DEFINE_PER_CPU_READ_MOSTLY(spinlock_t, t_lock);
-static u32 data_size;
+static u32 data_size __read_mostly;
 
 /* High water mark for trace buffers; */
 /* Send virtual interrupt when buffer level reaches this point */

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