GFS2: constify attribute_group structures.

attribute_groups are not supposed to change at runtime. All functions
working with attribute_groups provided by <linux/sysfs.h> work with const
attribute_group. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   5259	   1344	      8	   6611	   19d3	fs/gfs2/sys.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   5371	   1216	      8	   6595	   19c3	fs/gfs2/sys.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>

diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index 7a51534..01dc027 100644 (file)
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -637,12 +637,12 @@ static struct attribute *tune_attrs[] = {
        NULL,
 };
 
-static struct attribute_group tune_group = {
+static const struct attribute_group tune_group = {
        .name = "tune",
        .attrs = tune_attrs,
 };
 
-static struct attribute_group lock_module_group = {
+static const struct attribute_group lock_module_group = {
        .name = "lock_module",
        .attrs = lock_module_attrs,
 };