freeze_bdev: grab active reference to frozen superblocks

[mirror_ubuntu-zesty-kernel.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 72dfbd4239746baa7a8707698c76543442c11155..502d96ef345d9ae11fc2d42e9fe39f4da39c4225 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2334,6 +2334,7 @@ extern void 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 struct super_block *user_get_super(dev_t);
 extern void drop_super(struct super_block *sb);