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xen-devel
[Xen-devel] [PATCH] xen-tmem: Build cleancache shim to Xen Transcendent
xen-tmem: Build cleancache shim to Xen Transcendent Memory only if Cleancache
is enabled
Fix compilation warning
drivers/xen/tmem.c: In function ‘xen_tmem_init’:
drivers/xen/tmem.c:246: warning: unused variable ‘old_ops’
drivers/xen/tmem.c: At top level:
drivers/xen/tmem.c:234: warning: ‘tmem_cleancache_ops’ defined but not used
Signed-off-by: Nikanth Karthikesan <nikanth@xxxxxxxxxx>
---
Index: linux-2.6/drivers/xen/Makefile
===================================================================
--- linux-2.6.orig/drivers/xen/Makefile 2011-06-10 13:42:18.521140982 +0530
+++ linux-2.6/drivers/xen/Makefile 2011-06-10 13:44:50.110986353 +0530
@@ -1,6 +1,6 @@
obj-y += grant-table.o features.o events.o manage.o balloon.o
obj-y += xenbus/
-obj-y += tmem.o
+obj-$(CONFIG_CLEAN_CACHE) += tmem.o
nostackp := $(call cc-option, -fno-stack-protector)
CFLAGS_features.o := $(nostackp)
Index: linux-2.6/drivers/xen/tmem.c
===================================================================
--- linux-2.6.orig/drivers/xen/tmem.c 2011-06-10 12:19:14.522391890 +0530
+++ linux-2.6/drivers/xen/tmem.c 2011-06-10 13:45:42.500984200 +0530
@@ -247,7 +247,6 @@
if (!xen_domain())
return 0;
-#ifdef CONFIG_CLEANCACHE
BUG_ON(sizeof(struct cleancache_filekey) != sizeof(struct tmem_oid));
if (tmem_enabled && use_cleancache) {
char *s = "";
@@ -257,7 +256,6 @@
printk(KERN_INFO "cleancache enabled, RAM provided by "
"Xen Transcendent Memory%s\n", s);
}
-#endif
return 0;
}
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