btrfs: code optimize: BTRFS_ATTR could handle the mode

All that uses BTRFS_ATTR want mode to be set at 0444 so just do
it at the define.  And few spacing alignments.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>

1 files changed, 7 insertions, 4 deletions

diff --git a/fs/btrfs/sysfs.h b/fs/btrfs/sysfs.h
index ac46df37504c..531b11ee9124 100644
--- a/fs/btrfs/sysfs.h
+++ b/fs/btrfs/sysfs.h
@@ -21,15 +21,18 @@ enum btrfs_feature_set {
 }
 
 #define BTRFS_ATTR_RW(_name, _mode, _show, _store)                      \
-static struct kobj_attribute btrfs_attr_##_name =                       \
+        static struct kobj_attribute btrfs_attr_##_name =               \
                         __INIT_KOBJ_ATTR(_name, _mode, _show, _store)
-#define BTRFS_ATTR(_name, _mode, _show)                                 \
-        BTRFS_ATTR_RW(_name, _mode, _show, NULL)
+
+#define BTRFS_ATTR(_name, _show)                                        \
+                        BTRFS_ATTR_RW(_name, 0444, _show, NULL)
+
 #define BTRFS_ATTR_PTR(_name)    (&btrfs_attr_##_name.attr)
 
 #define BTRFS_RAID_ATTR(_name, _show)                                   \
-static struct kobj_attribute btrfs_raid_attr_##_name =                  \
+        static struct kobj_attribute btrfs_raid_attr_##_name =          \
                         __INIT_KOBJ_ATTR(_name, 0444, _show, NULL)
+
 #define BTRFS_RAID_ATTR_PTR(_name)    (&btrfs_raid_attr_##_name.attr)