/*
* Copyright (C) 2001 - 2003 Sistina Software (UK) Limited.
- * Copyright (C) 2004 - 2005 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004 - 2009 Red Hat, Inc. All rights reserved.
*
* This file is released under the LGPL.
*/
* return -ENOTTY) fill out this field, even if the
* command failed.
*/
- uint32_t version[3]; /* in/out */
- uint32_t data_size; /* total size of data passed in
+ __u32 version[3]; /* in/out */
+ __u32 data_size; /* total size of data passed in
* including this struct */
- uint32_t data_start; /* offset to start of data
+ __u32 data_start; /* offset to start of data
* relative to start of this struct */
- uint32_t target_count; /* in/out */
- int32_t open_count; /* out */
- uint32_t flags; /* in/out */
- uint32_t event_nr; /* in/out */
- uint32_t padding;
+ __u32 target_count; /* in/out */
+ __s32 open_count; /* out */
+ __u32 flags; /* in/out */
- uint64_t dev; /* in/out */
+ /*
+ * event_nr holds either the event number (input and output) or the
+ * udev cookie value (input only).
+ * The DM_DEV_WAIT ioctl takes an event number as input.
+ * The DM_SUSPEND, DM_DEV_REMOVE and DM_DEV_RENAME ioctls
+ * use the field as a cookie to return in the DM_COOKIE
+ * variable with the uevents they issue.
+ * For output, the ioctls return the event number, not the cookie.
+ */
+ __u32 event_nr; /* in/out */
+ __u32 padding;
+
+ __u64 dev; /* in/out */
char name[DM_NAME_LEN]; /* device name */
char uuid[DM_UUID_LEN]; /* unique identifier for
* the block device */
+ char data[7]; /* padding or data */
};
/*
* dm_ioctl.
*/
struct dm_target_spec {
- uint64_t sector_start;
- uint64_t length;
- int32_t status; /* used when reading from kernel only */
+ __u64 sector_start;
+ __u64 length;
+ __s32 status; /* used when reading from kernel only */
/*
* Location of the next dm_target_spec.
* (that follows the dm_ioctl struct) to the start of the "next"
* dm_target_spec.
*/
- uint32_t next;
+ __u32 next;
char target_type[DM_MAX_TYPE_NAME];
* Used to retrieve the target dependencies.
*/
struct dm_target_deps {
- uint32_t count; /* Array size */
- uint32_t padding; /* unused */
- uint64_t dev[0]; /* out */
+ __u32 count; /* Array size */
+ __u32 padding; /* unused */
+ __u64 dev[0]; /* out */
};
/*
* Used to get a list of all dm devices.
*/
struct dm_name_list {
- uint64_t dev;
- uint32_t next; /* offset to the next record from
+ __u64 dev;
+ __u32 next; /* offset to the next record from
the _start_ of this */
char name[0];
};
* Used to retrieve the target versions
*/
struct dm_target_versions {
- uint32_t next;
- uint32_t version[3];
+ __u32 next;
+ __u32 version[3];
char name[0];
};
* Used to pass message to a target
*/
struct dm_target_msg {
- uint64_t sector; /* Device sector */
+ __u64 sector; /* Device sector */
char message[0];
};
DM_DEV_SET_GEOMETRY_CMD
};
-/*
- * The dm_ioctl struct passed into the ioctl is just the header
- * on a larger chunk of memory. On x86-64 and other
- * architectures the dm-ioctl struct will be padded to an 8 byte
- * boundary so the size will be different, which would change the
- * ioctl code - yes I really messed up. This hack forces these
- * architectures to have the correct ioctl code.
- */
-#ifdef CONFIG_COMPAT
-typedef char ioctl_struct[308];
-#define DM_VERSION_32 _IOWR(DM_IOCTL, DM_VERSION_CMD, ioctl_struct)
-#define DM_REMOVE_ALL_32 _IOWR(DM_IOCTL, DM_REMOVE_ALL_CMD, ioctl_struct)
-#define DM_LIST_DEVICES_32 _IOWR(DM_IOCTL, DM_LIST_DEVICES_CMD, ioctl_struct)
-
-#define DM_DEV_CREATE_32 _IOWR(DM_IOCTL, DM_DEV_CREATE_CMD, ioctl_struct)
-#define DM_DEV_REMOVE_32 _IOWR(DM_IOCTL, DM_DEV_REMOVE_CMD, ioctl_struct)
-#define DM_DEV_RENAME_32 _IOWR(DM_IOCTL, DM_DEV_RENAME_CMD, ioctl_struct)
-#define DM_DEV_SUSPEND_32 _IOWR(DM_IOCTL, DM_DEV_SUSPEND_CMD, ioctl_struct)
-#define DM_DEV_STATUS_32 _IOWR(DM_IOCTL, DM_DEV_STATUS_CMD, ioctl_struct)
-#define DM_DEV_WAIT_32 _IOWR(DM_IOCTL, DM_DEV_WAIT_CMD, ioctl_struct)
-
-#define DM_TABLE_LOAD_32 _IOWR(DM_IOCTL, DM_TABLE_LOAD_CMD, ioctl_struct)
-#define DM_TABLE_CLEAR_32 _IOWR(DM_IOCTL, DM_TABLE_CLEAR_CMD, ioctl_struct)
-#define DM_TABLE_DEPS_32 _IOWR(DM_IOCTL, DM_TABLE_DEPS_CMD, ioctl_struct)
-#define DM_TABLE_STATUS_32 _IOWR(DM_IOCTL, DM_TABLE_STATUS_CMD, ioctl_struct)
-#define DM_LIST_VERSIONS_32 _IOWR(DM_IOCTL, DM_LIST_VERSIONS_CMD, ioctl_struct)
-#define DM_TARGET_MSG_32 _IOWR(DM_IOCTL, DM_TARGET_MSG_CMD, ioctl_struct)
-#define DM_DEV_SET_GEOMETRY_32 _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, ioctl_struct)
-#endif
-
#define DM_IOCTL 0xfd
#define DM_VERSION _IOWR(DM_IOCTL, DM_VERSION_CMD, struct dm_ioctl)
#define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
#define DM_VERSION_MAJOR 4
-#define DM_VERSION_MINOR 10
+#define DM_VERSION_MINOR 16
#define DM_VERSION_PATCHLEVEL 0
-#define DM_VERSION_EXTRA "-ioctl (2006-09-14)"
+#define DM_VERSION_EXTRA "-ioctl (2009-11-05)"
/* Status bits */
#define DM_READONLY_FLAG (1 << 0) /* In/Out */
*/
#define DM_SKIP_LOCKFS_FLAG (1 << 10) /* In */
+/*
+ * Set this to suspend without flushing queued ios.
+ */
+#define DM_NOFLUSH_FLAG (1 << 11) /* In */
+
+/*
+ * If set, any table information returned will relate to the inactive
+ * table instead of the live one. Always check DM_INACTIVE_PRESENT_FLAG
+ * is set before using the data returned.
+ */
+#define DM_QUERY_INACTIVE_TABLE_FLAG (1 << 12) /* In */
+
#endif /* _LINUX_DM_IOCTL_H */
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