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-rw-r--r--include/linux/device-mapper.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 0d8d419d191a..a90222e3297d 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -9,11 +9,13 @@
9#define _LINUX_DEVICE_MAPPER_H 9#define _LINUX_DEVICE_MAPPER_H
10 10
11#include <linux/bio.h> 11#include <linux/bio.h>
12#include <linux/blkdev.h>
12 13
13struct dm_target; 14struct dm_target;
14struct dm_table; 15struct dm_table;
15struct dm_dev; 16struct dm_dev;
16struct mapped_device; 17struct mapped_device;
18struct bio_vec;
17 19
18typedef enum { STATUSTYPE_INFO, STATUSTYPE_TABLE } status_type_t; 20typedef enum { STATUSTYPE_INFO, STATUSTYPE_TABLE } status_type_t;
19 21
@@ -72,6 +74,9 @@ typedef int (*dm_ioctl_fn) (struct dm_target *ti, struct inode *inode,
72 struct file *filp, unsigned int cmd, 74 struct file *filp, unsigned int cmd,
73 unsigned long arg); 75 unsigned long arg);
74 76
77typedef int (*dm_merge_fn) (struct dm_target *ti, struct bvec_merge_data *bvm,
78 struct bio_vec *biovec, int max_size);
79
75void dm_error(const char *message); 80void dm_error(const char *message);
76 81
77/* 82/*
@@ -107,6 +112,7 @@ struct target_type {
107 dm_status_fn status; 112 dm_status_fn status;
108 dm_message_fn message; 113 dm_message_fn message;
109 dm_ioctl_fn ioctl; 114 dm_ioctl_fn ioctl;
115 dm_merge_fn merge;
110}; 116};
111 117
112struct io_restrictions { 118struct io_restrictions {