提交 8e22cc88 编写于 作者: M Marco Stornelli 提交者: Al Viro

vfs: drop lock/unlock super

Removed s_lock from super_block and removed lock/unlock super.
Signed-off-by: NMarco Stornelli <marco.stornelli@gmail.com>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
上级 b6963327
......@@ -186,14 +186,7 @@ static struct super_block *alloc_super(struct file_system_type *type, int flags)
spin_lock_init(&s->s_inode_lru_lock);
INIT_LIST_HEAD(&s->s_mounts);
init_rwsem(&s->s_umount);
mutex_init(&s->s_lock);
lockdep_set_class(&s->s_umount, &type->s_umount_key);
/*
* The locking rules for s_lock are up to the
* filesystem. For example ext3fs has different
* lock ordering than usbfs:
*/
lockdep_set_class(&s->s_lock, &type->s_lock_key);
/*
* sget() can have s_umount recursion.
*
......@@ -394,22 +387,6 @@ bool grab_super_passive(struct super_block *sb)
return false;
}
/*
* Superblock locking. We really ought to get rid of these two.
*/
void lock_super(struct super_block * sb)
{
mutex_lock(&sb->s_lock);
}
void unlock_super(struct super_block * sb)
{
mutex_unlock(&sb->s_lock);
}
EXPORT_SYMBOL(lock_super);
EXPORT_SYMBOL(unlock_super);
/**
* generic_shutdown_super - common helper for ->kill_sb()
* @sb: superblock to kill
......
......@@ -1507,7 +1507,6 @@ struct super_block {
unsigned long s_magic;
struct dentry *s_root;
struct rw_semaphore s_umount;
struct mutex s_lock;
int s_count;
atomic_t s_active;
#ifdef CONFIG_SECURITY
......
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