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-rw-r--r--fs/super.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/fs/super.c b/fs/super.c
index eae088f6aaae..05a021638b11 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -36,8 +36,8 @@
#include "internal.h"
-LIST_HEAD(super_blocks);
-DEFINE_SPINLOCK(sb_lock);
+static LIST_HEAD(super_blocks);
+static DEFINE_SPINLOCK(sb_lock);
static char *sb_writers_name[SB_FREEZE_LEVELS] = {
"sb_writers",
@@ -185,8 +185,8 @@ static struct super_block *alloc_super(struct file_system_type *type, int flags)
}
init_waitqueue_head(&s->s_writers.wait);
init_waitqueue_head(&s->s_writers.wait_unfrozen);
+ s->s_bdi = &noop_backing_dev_info;
s->s_flags = flags;
- s->s_bdi = &default_backing_dev_info;
INIT_HLIST_NODE(&s->s_instances);
INIT_HLIST_BL_HEAD(&s->s_anon);
INIT_LIST_HEAD(&s->s_inodes);
@@ -863,10 +863,7 @@ EXPORT_SYMBOL(free_anon_bdev);
int set_anon_super(struct super_block *s, void *data)
{
- int error = get_anon_bdev(&s->s_dev);
- if (!error)
- s->s_bdi = &noop_backing_dev_info;
- return error;
+ return get_anon_bdev(&s->s_dev);
}
EXPORT_SYMBOL(set_anon_super);
@@ -1111,7 +1108,6 @@ mount_fs(struct file_system_type *type, int flags, const char *name, void *data)
sb = root->d_sb;
BUG_ON(!sb);
WARN_ON(!sb->s_bdi);
- WARN_ON(sb->s_bdi == &default_backing_dev_info);
sb->s_flags |= MS_BORN;
error = security_sb_kern_mount(sb, flags, secdata);