sysfs: Kill unused sysfs_sb variable.

[safe/jmp/linux-2.6] / fs / sysfs / mount.c

diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index ab343e3..0cb1088 100644 (file)
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -17,19 +17,18 @@
 #include <linux/pagemap.h>
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/magic.h>
 
 #include "sysfs.h"
 
-/* Random magic number */
-#define SYSFS_MAGIC 0x62656572
 
 static struct vfsmount *sysfs_mount;
-struct super_block * sysfs_sb = NULL;
 struct kmem_cache *sysfs_dir_cachep;
 
 static const struct super_operations sysfs_ops = {
        .statfs         = simple_statfs,
        .drop_inode     = generic_delete_inode,
+       .delete_inode   = sysfs_delete_inode,
 };
 
 struct sysfs_dirent sysfs_root = {
@@ -50,10 +49,11 @@ static int sysfs_fill_super(struct super_block *sb, void *data, int silent)
        sb->s_magic = SYSFS_MAGIC;
        sb->s_op = &sysfs_ops;
        sb->s_time_gran = 1;
-       sysfs_sb = sb;
 
        /* get root inode, initialize and unlock it */
-       inode = sysfs_get_inode(&sysfs_root);
+       mutex_lock(&sysfs_mutex);
+       inode = sysfs_get_inode(sb, &sysfs_root);
+       mutex_unlock(&sysfs_mutex);
        if (!inode) {
                pr_debug("sysfs: could not get root inode\n");
                return -ENOMEM;