Commit 38bcdd38 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Christian Brauner
Browse files

fs: remove get_super 



get_super is unused now, remove it.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarChristian Brauner <brauner@kernel.org>
Reviewed-by: default avatarJosef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-17-hch@lst.de>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 2142b88c

fs/super.c

+0 −37
Original line number Diff line number Diff line
@@ -790,43 +790,6 @@ void iterate_supers_type(struct file_system_type *type, 


EXPORT_SYMBOL(iterate_supers_type);



/**

 * get_super - get the superblock of a device

 * @bdev: device to get the superblock for

 *

 * Scans the superblock list and finds the superblock of the file system

 * mounted on the device given. %NULL is returned if no match is found.

 */

struct super_block *get_super(struct block_device *bdev)

{

	struct super_block *sb;



	if (!bdev)

		return NULL;



	spin_lock(&sb_lock);

rescan:

	list_for_each_entry(sb, &super_blocks, s_list) {

		if (hlist_unhashed(&sb->s_instances))

			continue;

		if (sb->s_bdev == bdev) {

			sb->s_count++;

			spin_unlock(&sb_lock);

			down_read(&sb->s_umount);

			/* still alive? */

			if (sb->s_root && (sb->s_flags & SB_BORN))

				return sb;

			up_read(&sb->s_umount);

			/* nope, got unmounted */

			spin_lock(&sb_lock);

			__put_super(sb);

			goto rescan;

		}

	}

	spin_unlock(&sb_lock);

	return NULL;

}



/**

 * get_active_super - get an active reference to the superblock of a device

 * @bdev: device to get the superblock for

include/linux/fs.h

+0 −1
Original line number Diff line number Diff line
@@ -2913,7 +2913,6 @@ extern int vfs_readlink(struct dentry *, char __user *, int); 
extern struct file_system_type *get_filesystem(struct file_system_type *fs);

extern void put_filesystem(struct file_system_type *fs);

extern struct file_system_type *get_fs_type(const char *name);

extern struct super_block *get_super(struct block_device *);

extern struct super_block *get_active_super(struct block_device *bdev);

extern void drop_super(struct super_block *sb);

extern void drop_super_exclusive(struct super_block *sb);