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-rw-r--r--include/linux/blkdev.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 7a3da7f44afb..1bc776335ff8 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1468,6 +1468,16 @@ struct blk_holder_ops {
* Sync the file system mounted on the block device.
*/
void (*sync)(struct block_device *bdev);
+
+ /*
+ * Freeze the file system mounted on the block device.
+ */
+ int (*freeze)(struct block_device *bdev);
+
+ /*
+ * Thaw the file system mounted on the block device.
+ */
+ int (*thaw)(struct block_device *bdev);
};
extern const struct blk_holder_ops fs_holder_ops;