[linux-2.6-block.git] / include / uapi / linux / btrfs.h

/*
 * Copyright (C) 2007 Oracle.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License v2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 021110-1307, USA.
 */

#ifndef _UAPI_LINUX_BTRFS_H
#define _UAPI_LINUX_BTRFS_H
#include <linux/types.h>
#include <linux/ioctl.h>

#define BTRFS_IOCTL_MAGIC 0x94
#define BTRFS_VOL_NAME_MAX 255

/* this should be 4k */
#define BTRFS_PATH_NAME_MAX 4087
struct btrfs_ioctl_vol_args {
	__s64 fd;
	char name[BTRFS_PATH_NAME_MAX + 1];
};

#define BTRFS_DEVICE_PATH_NAME_MAX 1024

#define BTRFS_SUBVOL_CREATE_ASYNC	(1ULL << 0)
#define BTRFS_SUBVOL_RDONLY		(1ULL << 1)
#define BTRFS_SUBVOL_QGROUP_INHERIT	(1ULL << 2)
#define BTRFS_FSID_SIZE 16
#define BTRFS_UUID_SIZE 16

#define BTRFS_QGROUP_INHERIT_SET_LIMITS	(1ULL << 0)

struct btrfs_qgroup_limit {
	__u64	flags;
	__u64	max_rfer;
	__u64	max_excl;
	__u64	rsv_rfer;
	__u64	rsv_excl;
};

struct btrfs_qgroup_inherit {
	__u64	flags;
	__u64	num_qgroups;
	__u64	num_ref_copies;
	__u64	num_excl_copies;
	struct btrfs_qgroup_limit lim;
	__u64	qgroups[0];
};

struct btrfs_ioctl_qgroup_limit_args {
	__u64	qgroupid;
	struct btrfs_qgroup_limit lim;
};

#define BTRFS_SUBVOL_NAME_MAX 4039
struct btrfs_ioctl_vol_args_v2 {
	__s64 fd;
	__u64 transid;
	__u64 flags;
	union {
		struct {
			__u64 size;
			struct btrfs_qgroup_inherit __user *qgroup_inherit;
		};
		__u64 unused[4];
	};
	char name[BTRFS_SUBVOL_NAME_MAX + 1];
};

/*
 * structure to report errors and progress to userspace, either as a
 * result of a finished scrub, a canceled scrub or a progress inquiry
 */
struct btrfs_scrub_progress {
	__u64 data_extents_scrubbed;	/* # of data extents scrubbed */
	__u64 tree_extents_scrubbed;	/* # of tree extents scrubbed */
	__u64 data_bytes_scrubbed;	/* # of data bytes scrubbed */
	__u64 tree_bytes_scrubbed;	/* # of tree bytes scrubbed */
	__u64 read_errors;		/* # of read errors encountered (EIO) */
	__u64 csum_errors;		/* # of failed csum checks */
	__u64 verify_errors;		/* # of occurences, where the metadata
					 * of a tree block did not match the
					 * expected values, like generation or
					 * logical */
	__u64 no_csum;			/* # of 4k data block for which no csum
					 * is present, probably the result of
					 * data written with nodatasum */
	__u64 csum_discards;		/* # of csum for which no data was found
					 * in the extent tree. */
	__u64 super_errors;		/* # of bad super blocks encountered */
	__u64 malloc_errors;		/* # of internal kmalloc errors. These
					 * will likely cause an incomplete
					 * scrub */
	__u64 uncorrectable_errors;	/* # of errors where either no intact
					 * copy was found or the writeback
					 * failed */
	__u64 corrected_errors;		/* # of errors corrected */
	__u64 last_physical;		/* last physical address scrubbed. In
					 * case a scrub was aborted, this can
					 * be used to restart the scrub */
	__u64 unverified_errors;	/* # of occurences where a read for a
					 * full (64k) bio failed, but the re-
					 * check succeeded for each 4k piece.
					 * Intermittent error. */
};

#define BTRFS_SCRUB_READONLY	1
struct btrfs_ioctl_scrub_args {
	__u64 devid;				/* in */
	__u64 start;				/* in */
	__u64 end;				/* in */
	__u64 flags;				/* in */
	struct btrfs_scrub_progress progress;	/* out */
	/* pad to 1k */
	__u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8];
};

#define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS	0
#define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID	1
struct btrfs_ioctl_dev_replace_start_params {
	__u64 srcdevid;	/* in, if 0, use srcdev_name instead */
	__u64 cont_reading_from_srcdev_mode;	/* in, see #define
						 * above */
	__u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1];	/* in */
	__u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1];	/* in */
};

#define BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED	0
#define BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED		1
#define BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED		2
#define BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED		3
#define BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED		4
struct btrfs_ioctl_dev_replace_status_params {
	__u64 replace_state;	/* out, see #define above */
	__u64 progress_1000;	/* out, 0 <= x <= 1000 */
	__u64 time_started;	/* out, seconds since 1-Jan-1970 */
	__u64 time_stopped;	/* out, seconds since 1-Jan-1970 */
	__u64 num_write_errors;	/* out */
	__u64 num_uncorrectable_read_errors;	/* out */
};

#define BTRFS_IOCTL_DEV_REPLACE_CMD_START			0
#define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS			1
#define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL			2
#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR			0
#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED		1
#define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED		2
struct btrfs_ioctl_dev_replace_args {
	__u64 cmd;	/* in */
	__u64 result;	/* out */

	union {
		struct btrfs_ioctl_dev_replace_start_params start;
		struct btrfs_ioctl_dev_replace_status_params status;
	};	/* in/out */

	__u64 spare[64];
};

struct btrfs_ioctl_dev_info_args {
	__u64 devid;				/* in/out */
	__u8 uuid[BTRFS_UUID_SIZE];		/* in/out */
	__u64 bytes_used;			/* out */
	__u64 total_bytes;			/* out */
	__u64 unused[379];			/* pad to 4k */
	__u8 path[BTRFS_DEVICE_PATH_NAME_MAX];	/* out */
};

struct btrfs_ioctl_fs_info_args {
	__u64 max_id;				/* out */
	__u64 num_devices;			/* out */
	__u8 fsid[BTRFS_FSID_SIZE];		/* out */
	__u64 reserved[124];			/* pad to 1k */
};

/* balance control ioctl modes */
#define BTRFS_BALANCE_CTL_PAUSE		1
#define BTRFS_BALANCE_CTL_CANCEL	2

/*
 * this is packed, because it should be exactly the same as its disk
 * byte order counterpart (struct btrfs_disk_balance_args)
 */
struct btrfs_balance_args {
	__u64 profiles;
	__u64 usage;
	__u64 devid;
	__u64 pstart;
	__u64 pend;
	__u64 vstart;
	__u64 vend;

	__u64 target;

	__u64 flags;

	__u64 unused[8];
} __attribute__ ((__packed__));

/* report balance progress to userspace */
struct btrfs_balance_progress {
	__u64 expected;		/* estimated # of chunks that will be
				 * relocated to fulfill the request */
	__u64 considered;	/* # of chunks we have considered so far */
	__u64 completed;	/* # of chunks relocated so far */
};

#define BTRFS_BALANCE_STATE_RUNNING	(1ULL << 0)
#define BTRFS_BALANCE_STATE_PAUSE_REQ	(1ULL << 1)
#define BTRFS_BALANCE_STATE_CANCEL_REQ	(1ULL << 2)

struct btrfs_ioctl_balance_args {
	__u64 flags;				/* in/out */
	__u64 state;				/* out */

	struct btrfs_balance_args data;		/* in/out */
	struct btrfs_balance_args meta;		/* in/out */
	struct btrfs_balance_args sys;		/* in/out */

	struct btrfs_balance_progress stat;	/* out */

	__u64 unused[72];			/* pad to 1k */
};

#define BTRFS_INO_LOOKUP_PATH_MAX 4080
struct btrfs_ioctl_ino_lookup_args {
	__u64 treeid;
	__u64 objectid;
	char name[BTRFS_INO_LOOKUP_PATH_MAX];
};

struct btrfs_ioctl_search_key {
	/* which root are we searching.  0 is the tree of tree roots */
	__u64 tree_id;

	/* keys returned will be >= min and <= max */
	__u64 min_objectid;
	__u64 max_objectid;

	/* keys returned will be >= min and <= max */
	__u64 min_offset;
	__u64 max_offset;

	/* max and min transids to search for */
	__u64 min_transid;
	__u64 max_transid;

	/* keys returned will be >= min and <= max */
	__u32 min_type;
	__u32 max_type;

	/*
	 * how many items did userland ask for, and how many are we
	 * returning
	 */
	__u32 nr_items;

	/* align to 64 bits */
	__u32 unused;

	/* some extra for later */
	__u64 unused1;
	__u64 unused2;
	__u64 unused3;
	__u64 unused4;
};

struct btrfs_ioctl_search_header {
	__u64 transid;
	__u64 objectid;
	__u64 offset;
	__u32 type;
	__u32 len;
};

#define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
/*
 * the buf is an array of search headers where
 * each header is followed by the actual item
 * the type field is expanded to 32 bits for alignment
 */
struct btrfs_ioctl_search_args {
	struct btrfs_ioctl_search_key key;
	char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
};

struct btrfs_ioctl_clone_range_args {
  __s64 src_fd;
  __u64 src_offset, src_length;
  __u64 dest_offset;
};

/* flags for the defrag range ioctl */
#define BTRFS_DEFRAG_RANGE_COMPRESS 1
#define BTRFS_DEFRAG_RANGE_START_IO 2

struct btrfs_ioctl_space_info {
	__u64 flags;
	__u64 total_bytes;
	__u64 used_bytes;
};

struct btrfs_ioctl_space_args {
	__u64 space_slots;
	__u64 total_spaces;
	struct btrfs_ioctl_space_info spaces[0];
};

struct btrfs_data_container {
	__u32	bytes_left;	/* out -- bytes not needed to deliver output */
	__u32	bytes_missing;	/* out -- additional bytes needed for result */
	__u32	elem_cnt;	/* out */
	__u32	elem_missed;	/* out */
	__u64	val[0];		/* out */
};

struct btrfs_ioctl_ino_path_args {
	__u64				inum;		/* in */
	__u64				size;		/* in */
	__u64				reserved[4];
	/* struct btrfs_data_container	*fspath;	   out */
	__u64				fspath;		/* out */
};

struct btrfs_ioctl_logical_ino_args {
	__u64				logical;	/* in */
	__u64				size;		/* in */
	__u64				reserved[4];
	/* struct btrfs_data_container	*inodes;	out   */
	__u64				inodes;
};

enum btrfs_dev_stat_values {
	/* disk I/O failure stats */
	BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
	BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
	BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */

	/* stats for indirect indications for I/O failures */
	BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
					 * contents is illegal: this is an
					 * indication that the block was damaged
					 * during read or write, or written to
					 * wrong location or read from wrong
					 * location */
	BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
					 * been written */

	BTRFS_DEV_STAT_VALUES_MAX
};

/* Reset statistics after reading; needs SYS_ADMIN capability */
#define	BTRFS_DEV_STATS_RESET		(1ULL << 0)

struct btrfs_ioctl_get_dev_stats {
	__u64 devid;				/* in */
	__u64 nr_items;				/* in/out */
	__u64 flags;				/* in/out */

	/* out values: */
	__u64 values[BTRFS_DEV_STAT_VALUES_MAX];

	__u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
};

#define BTRFS_QUOTA_CTL_ENABLE	1
#define BTRFS_QUOTA_CTL_DISABLE	2
#define BTRFS_QUOTA_CTL_RESCAN	3
struct btrfs_ioctl_quota_ctl_args {
	__u64 cmd;
	__u64 status;
};

struct btrfs_ioctl_qgroup_assign_args {
	__u64 assign;
	__u64 src;
	__u64 dst;
};

struct btrfs_ioctl_qgroup_create_args {
	__u64 create;
	__u64 qgroupid;
};
struct btrfs_ioctl_timespec {
	__u64 sec;
	__u32 nsec;
};

struct btrfs_ioctl_received_subvol_args {
	char	uuid[BTRFS_UUID_SIZE];	/* in */
	__u64	stransid;		/* in */
	__u64	rtransid;		/* out */
	struct btrfs_ioctl_timespec stime; /* in */
	struct btrfs_ioctl_timespec rtime; /* out */
	__u64	flags;			/* in */
	__u64	reserved[16];		/* in */
};

/*
 * Caller doesn't want file data in the send stream, even if the
 * search of clone sources doesn't find an extent. UPDATE_EXTENT
 * commands will be sent instead of WRITE commands.
 */
#define BTRFS_SEND_FLAG_NO_FILE_DATA     0x1

struct btrfs_ioctl_send_args {
	__s64 send_fd;			/* in */
	__u64 clone_sources_count;	/* in */
	__u64 __user *clone_sources;	/* in */
	__u64 parent_root;		/* in */
	__u64 flags;			/* in */
	__u64 reserved[4];		/* in */
};

#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
				   struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
				   struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
				   struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
				   struct btrfs_ioctl_vol_args)
/* trans start and trans end are dangerous, and only for
 * use by applications that know how to avoid the
 * resulting deadlocks
 */
#define BTRFS_IOC_TRANS_START  _IO(BTRFS_IOCTL_MAGIC, 6)
#define BTRFS_IOC_TRANS_END    _IO(BTRFS_IOCTL_MAGIC, 7)
#define BTRFS_IOC_SYNC         _IO(BTRFS_IOCTL_MAGIC, 8)

#define BTRFS_IOC_CLONE        _IOW(BTRFS_IOCTL_MAGIC, 9, int)
#define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
				   struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
				   struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
				   struct btrfs_ioctl_vol_args)

#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
				  struct btrfs_ioctl_clone_range_args)

#define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
				   struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
				struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
				struct btrfs_ioctl_defrag_range_args)
#define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
				   struct btrfs_ioctl_search_args)
#define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
				   struct btrfs_ioctl_ino_lookup_args)
#define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, u64)
#define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
				    struct btrfs_ioctl_space_args)
#define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
#define BTRFS_IOC_WAIT_SYNC  _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
#define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
				   struct btrfs_ioctl_vol_args_v2)
#define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
				   struct btrfs_ioctl_vol_args_v2)
#define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
#define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
#define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
			      struct btrfs_ioctl_scrub_args)
#define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
#define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
				       struct btrfs_ioctl_scrub_args)
#define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
				 struct btrfs_ioctl_dev_info_args)
#define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
			       struct btrfs_ioctl_fs_info_args)
#define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
				   struct btrfs_ioctl_balance_args)
#define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
#define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
					struct btrfs_ioctl_balance_args)
#define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
					struct btrfs_ioctl_ino_path_args)
#define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
					struct btrfs_ioctl_ino_path_args)
#define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
				struct btrfs_ioctl_received_subvol_args)
#define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
#define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
				     struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
			       struct btrfs_ioctl_quota_ctl_args)
#define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
			       struct btrfs_ioctl_qgroup_assign_args)
#define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
			       struct btrfs_ioctl_qgroup_create_args)
#define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
			       struct btrfs_ioctl_qgroup_limit_args)
#define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
				   char[BTRFS_LABEL_SIZE])
#define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
				   char[BTRFS_LABEL_SIZE])
#define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
				      struct btrfs_ioctl_get_dev_stats)
#define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
				    struct btrfs_ioctl_dev_replace_args)

#endif /* _UAPI_LINUX_BTRFS_H */
Commit	Line	Data
6cbd5570 CM	1	/*
	2	* Copyright (C) 2007 Oracle. All rights reserved.
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public
	6	* License v2 as published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope that it will be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	11	* General Public License for more details.
	12	*
	13	* You should have received a copy of the GNU General Public
	14	* License along with this program; if not, write to the
	15	* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	16	* Boston, MA 021110-1307, USA.
	17	*/
	18
55e301fd FB	19	#ifndef _UAPI_LINUX_BTRFS_H
	20	#define _UAPI_LINUX_BTRFS_H
	21	#include <linux/types.h>
c5739bba CM	22	#include <linux/ioctl.h>
	23
	24	#define BTRFS_IOCTL_MAGIC 0x94
	25	#define BTRFS_VOL_NAME_MAX 255
8a4b83cc	26
c071fcfd	27	/* this should be 4k */
72fd032e	28	#define BTRFS_PATH_NAME_MAX 4087
c5739bba	29	struct btrfs_ioctl_vol_args {
3de4586c	30	__s64 fd;
8a4b83cc	31	char name[BTRFS_PATH_NAME_MAX + 1];
c5739bba CM	32	};
c5739bba CM	33
3f6bcfbd SB	34	#define BTRFS_DEVICE_PATH_NAME_MAX 1024
3f6bcfbd SB	35
fdfb1e4f	36	#define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0)
b83cc969	37	#define BTRFS_SUBVOL_RDONLY (1ULL << 1)
6f72c7e2	38	#define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2)
475f6387 JS	39	#define BTRFS_FSID_SIZE 16
475f6387 JS	40	#define BTRFS_UUID_SIZE 16
fdfb1e4f	41
bed92eae AJ	42	#define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0)
	43
	44	struct btrfs_qgroup_limit {
	45	__u64 flags;
	46	__u64 max_rfer;
	47	__u64 max_excl;
	48	__u64 rsv_rfer;
	49	__u64 rsv_excl;
	50	};
	51
	52	struct btrfs_qgroup_inherit {
	53	__u64 flags;
	54	__u64 num_qgroups;
	55	__u64 num_ref_copies;
	56	__u64 num_excl_copies;
	57	struct btrfs_qgroup_limit lim;
	58	__u64 qgroups[0];
	59	};
	60
	61	struct btrfs_ioctl_qgroup_limit_args {
	62	__u64 qgroupid;
	63	struct btrfs_qgroup_limit lim;
	64	};
	65
fdfb1e4f LZ	66	#define BTRFS_SUBVOL_NAME_MAX 4039
fdfb1e4f LZ	67	struct btrfs_ioctl_vol_args_v2 {
72fd032e SW	68	__s64 fd;
72fd032e SW	69	__u64 transid;
fdfb1e4f	70	__u64 flags;
6f72c7e2 AJ	71	union {
	72	struct {
	73	__u64 size;
	74	struct btrfs_qgroup_inherit __user *qgroup_inherit;
	75	};
	76	__u64 unused[4];
	77	};
fdfb1e4f	78	char name[BTRFS_SUBVOL_NAME_MAX + 1];
72fd032e SW	79	};
72fd032e SW	80
a2de733c AJ	81	/*
	82	* structure to report errors and progress to userspace, either as a
	83	* result of a finished scrub, a canceled scrub or a progress inquiry
	84	*/
	85	struct btrfs_scrub_progress {
	86	__u64 data_extents_scrubbed; /* # of data extents scrubbed */
	87	__u64 tree_extents_scrubbed; /* # of tree extents scrubbed */
	88	__u64 data_bytes_scrubbed; /* # of data bytes scrubbed */
	89	__u64 tree_bytes_scrubbed; /* # of tree bytes scrubbed */
	90	__u64 read_errors; /* # of read errors encountered (EIO) */
	91	__u64 csum_errors; /* # of failed csum checks */
	92	__u64 verify_errors; /* # of occurences, where the metadata
	93	* of a tree block did not match the
	94	* expected values, like generation or
	95	* logical */
	96	__u64 no_csum; /* # of 4k data block for which no csum
	97	* is present, probably the result of
	98	* data written with nodatasum */
	99	__u64 csum_discards; /* # of csum for which no data was found
	100	* in the extent tree. */
	101	__u64 super_errors; /* # of bad super blocks encountered */
	102	__u64 malloc_errors; /* # of internal kmalloc errors. These
	103	* will likely cause an incomplete
	104	* scrub */
	105	__u64 uncorrectable_errors; /* # of errors where either no intact
	106	* copy was found or the writeback
	107	* failed */
	108	__u64 corrected_errors; /* # of errors corrected */
	109	__u64 last_physical; /* last physical address scrubbed. In
	110	* case a scrub was aborted, this can
	111	* be used to restart the scrub */
	112	__u64 unverified_errors; /* # of occurences where a read for a
	113	* full (64k) bio failed, but the re-
	114	* check succeeded for each 4k piece.
	115	* Intermittent error. */
	116	};
	117
8628764e	118	#define BTRFS_SCRUB_READONLY 1
475f6387 JS	119	struct btrfs_ioctl_scrub_args {
	120	__u64 devid; /* in */
	121	__u64 start; /* in */
	122	__u64 end; /* in */
	123	__u64 flags; /* in */
	124	struct btrfs_scrub_progress progress; /* out */
	125	/* pad to 1k */
	126	__u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8];
	127	};
	128
e93c89c1 SB	129	#define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0
	130	#define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID 1
	131	struct btrfs_ioctl_dev_replace_start_params {
	132	__u64 srcdevid; /* in, if 0, use srcdev_name instead */
e93c89c1 SB	133	__u64 cont_reading_from_srcdev_mode; /* in, see #define
e93c89c1 SB	134	* above */
3f6bcfbd SB	135	__u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */
3f6bcfbd SB	136	__u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */
e93c89c1 SB	137	};
	138
	139	#define BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED 0
	140	#define BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED 1
	141	#define BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED 2
	142	#define BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED 3
	143	#define BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED 4
	144	struct btrfs_ioctl_dev_replace_status_params {
	145	__u64 replace_state; /* out, see #define above */
	146	__u64 progress_1000; /* out, 0 <= x <= 1000 */
	147	__u64 time_started; /* out, seconds since 1-Jan-1970 */
	148	__u64 time_stopped; /* out, seconds since 1-Jan-1970 */
	149	__u64 num_write_errors; /* out */
	150	__u64 num_uncorrectable_read_errors; /* out */
	151	};
	152
	153	#define BTRFS_IOCTL_DEV_REPLACE_CMD_START 0
	154	#define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS 1
	155	#define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL 2
	156	#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR 0
	157	#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED 1
	158	#define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED 2
	159	struct btrfs_ioctl_dev_replace_args {
	160	__u64 cmd; /* in */
	161	__u64 result; /* out */
	162
	163	union {
	164	struct btrfs_ioctl_dev_replace_start_params start;
	165	struct btrfs_ioctl_dev_replace_status_params status;
	166	}; /* in/out */
	167
	168	__u64 spare[64];
	169	};
	170
475f6387 JS	171	struct btrfs_ioctl_dev_info_args {
	172	__u64 devid; /* in/out */
	173	__u8 uuid[BTRFS_UUID_SIZE]; /* in/out */
	174	__u64 bytes_used; /* out */
	175	__u64 total_bytes; /* out */
	176	__u64 unused[379]; /* pad to 4k */
	177	__u8 path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */
	178	};
	179
	180	struct btrfs_ioctl_fs_info_args {
	181	__u64 max_id; /* out */
	182	__u64 num_devices; /* out */
	183	__u8 fsid[BTRFS_FSID_SIZE]; /* out */
	184	__u64 reserved[124]; /* pad to 1k */
	185	};
	186
837d5b6e ID	187	/* balance control ioctl modes */
837d5b6e ID	188	#define BTRFS_BALANCE_CTL_PAUSE 1
a7e99c69	189	#define BTRFS_BALANCE_CTL_CANCEL 2
837d5b6e	190
c9e9f97b ID	191	/*
	192	* this is packed, because it should be exactly the same as its disk
	193	* byte order counterpart (struct btrfs_disk_balance_args)
	194	*/
	195	struct btrfs_balance_args {
	196	__u64 profiles;
	197	__u64 usage;
	198	__u64 devid;
	199	__u64 pstart;
	200	__u64 pend;
	201	__u64 vstart;
	202	__u64 vend;
	203
	204	__u64 target;
	205
	206	__u64 flags;
	207
	208	__u64 unused[8];
	209	} __attribute__ ((__packed__));
	210
	211	/* report balance progress to userspace */
	212	struct btrfs_balance_progress {
	213	__u64 expected; /* estimated # of chunks that will be
	214	* relocated to fulfill the request */
	215	__u64 considered; /* # of chunks we have considered so far */
	216	__u64 completed; /* # of chunks relocated so far */
	217	};
	218
837d5b6e ID	219	#define BTRFS_BALANCE_STATE_RUNNING (1ULL << 0)
837d5b6e ID	220	#define BTRFS_BALANCE_STATE_PAUSE_REQ (1ULL << 1)
a7e99c69	221	#define BTRFS_BALANCE_STATE_CANCEL_REQ (1ULL << 2)
837d5b6e	222
c9e9f97b ID	223	struct btrfs_ioctl_balance_args {
	224	__u64 flags; /* in/out */
	225	__u64 state; /* out */
	226
	227	struct btrfs_balance_args data; /* in/out */
	228	struct btrfs_balance_args meta; /* in/out */
	229	struct btrfs_balance_args sys; /* in/out */
	230
	231	struct btrfs_balance_progress stat; /* out */
	232
	233	__u64 unused[72]; /* pad to 1k */
	234	};
	235
ac8e9819 CM	236	#define BTRFS_INO_LOOKUP_PATH_MAX 4080
	237	struct btrfs_ioctl_ino_lookup_args {
	238	__u64 treeid;
	239	__u64 objectid;
	240	char name[BTRFS_INO_LOOKUP_PATH_MAX];
	241	};
	242
	243	struct btrfs_ioctl_search_key {
	244	/* which root are we searching. 0 is the tree of tree roots */
	245	__u64 tree_id;
	246
	247	/* keys returned will be >= min and <= max */
	248	__u64 min_objectid;
	249	__u64 max_objectid;
	250
	251	/* keys returned will be >= min and <= max */
	252	__u64 min_offset;
	253	__u64 max_offset;
	254
	255	/* max and min transids to search for */
	256	__u64 min_transid;
	257	__u64 max_transid;
	258
	259	/* keys returned will be >= min and <= max */
	260	__u32 min_type;
	261	__u32 max_type;
	262
	263	/*
	264	* how many items did userland ask for, and how many are we
	265	* returning
	266	*/
	267	__u32 nr_items;
	268
	269	/* align to 64 bits */
	270	__u32 unused;
	271
	272	/* some extra for later */
	273	__u64 unused1;
	274	__u64 unused2;
	275	__u64 unused3;
	276	__u64 unused4;
	277	};
	278
	279	struct btrfs_ioctl_search_header {
	280	__u64 transid;
	281	__u64 objectid;
	282	__u64 offset;
	283	__u32 type;
	284	__u32 len;
	285	};
	286
	287	#define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
	288	/*
	289	* the buf is an array of search headers where
	290	* each header is followed by the actual item
	291	* the type field is expanded to 32 bits for alignment
	292	*/
	293	struct btrfs_ioctl_search_args {
	294	struct btrfs_ioctl_search_key key;
	295	char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
	296	};
	297
c071fcfd CM	298	struct btrfs_ioctl_clone_range_args {
	299	__s64 src_fd;
	300	__u64 src_offset, src_length;
	301	__u64 dest_offset;
	302	};
	303
1e701a32 CM	304	/* flags for the defrag range ioctl */
	305	#define BTRFS_DEFRAG_RANGE_COMPRESS 1
	306	#define BTRFS_DEFRAG_RANGE_START_IO 2
	307
1406e432	308	struct btrfs_ioctl_space_info {
ce769a29 SW	309	__u64 flags;
	310	__u64 total_bytes;
	311	__u64 used_bytes;
1406e432 JB	312	};
	313
	314	struct btrfs_ioctl_space_args {
ce769a29 SW	315	__u64 space_slots;
ce769a29 SW	316	__u64 total_spaces;
1406e432 JB	317	struct btrfs_ioctl_space_info spaces[0];
1406e432 JB	318	};
1e701a32	319
a542ad1b JS	320	struct btrfs_data_container {
	321	__u32 bytes_left; /* out -- bytes not needed to deliver output */
	322	__u32 bytes_missing; /* out -- additional bytes needed for result */
	323	__u32 elem_cnt; /* out */
	324	__u32 elem_missed; /* out */
740c3d22	325	__u64 val[0]; /* out */
a542ad1b JS	326	};
a542ad1b JS	327
d7728c96 JS	328	struct btrfs_ioctl_ino_path_args {
d7728c96 JS	329	__u64 inum; /* in */
d04b1deb	330	__u64 size; /* in */
d7728c96	331	__u64 reserved[4];
740c3d22 CM	332	/* struct btrfs_data_container fspath; out /
740c3d22 CM	333	__u64 fspath; /* out */
d7728c96 JS	334	};
	335
	336	struct btrfs_ioctl_logical_ino_args {
	337	__u64 logical; /* in */
d04b1deb	338	__u64 size; /* in */
d7728c96	339	__u64 reserved[4];
740c3d22 CM	340	/* struct btrfs_data_container inodes; out /
740c3d22 CM	341	__u64 inodes;
d7728c96 JS	342	};
d7728c96 JS	343
442a4f63 SB	344	enum btrfs_dev_stat_values {
	345	/* disk I/O failure stats */
	346	BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
	347	BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
	348	BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */
	349
	350	/* stats for indirect indications for I/O failures */
	351	BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
	352	* contents is illegal: this is an
	353	* indication that the block was damaged
	354	* during read or write, or written to
	355	* wrong location or read from wrong
	356	* location */
	357	BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
	358	* been written */
	359
	360	BTRFS_DEV_STAT_VALUES_MAX
	361	};
	362
b27f7c0c DS	363	/* Reset statistics after reading; needs SYS_ADMIN capability */
	364	#define BTRFS_DEV_STATS_RESET (1ULL << 0)
	365
c11d2c23 SB	366	struct btrfs_ioctl_get_dev_stats {
	367	__u64 devid; /* in */
	368	__u64 nr_items; /* in/out */
b27f7c0c	369	__u64 flags; /* in/out */
c11d2c23 SB	370
	371	/* out values: */
	372	__u64 values[BTRFS_DEV_STAT_VALUES_MAX];
	373
	374	__u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
	375	};
	376
5d13a37b AJ	377	#define BTRFS_QUOTA_CTL_ENABLE 1
	378	#define BTRFS_QUOTA_CTL_DISABLE 2
	379	#define BTRFS_QUOTA_CTL_RESCAN 3
	380	struct btrfs_ioctl_quota_ctl_args {
	381	__u64 cmd;
	382	__u64 status;
	383	};
	384
	385	struct btrfs_ioctl_qgroup_assign_args {
	386	__u64 assign;
	387	__u64 src;
	388	__u64 dst;
	389	};
	390
	391	struct btrfs_ioctl_qgroup_create_args {
	392	__u64 create;
	393	__u64 qgroupid;
	394	};
8ea05e3a AB	395	struct btrfs_ioctl_timespec {
	396	__u64 sec;
	397	__u32 nsec;
	398	};
	399
	400	struct btrfs_ioctl_received_subvol_args {
	401	char uuid[BTRFS_UUID_SIZE]; /* in */
	402	__u64 stransid; /* in */
	403	__u64 rtransid; /* out */
	404	struct btrfs_ioctl_timespec stime; /* in */
	405	struct btrfs_ioctl_timespec rtime; /* out */
	406	__u64 flags; /* in */
	407	__u64 reserved[16]; /* in */
	408	};
	409
cb95e7bf MF	410	/*
	411	* Caller doesn't want file data in the send stream, even if the
	412	* search of clone sources doesn't find an extent. UPDATE_EXTENT
	413	* commands will be sent instead of WRITE commands.
	414	*/
	415	#define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1
	416
31db9f7c AB	417	struct btrfs_ioctl_send_args {
	418	__s64 send_fd; /* in */
	419	__u64 clone_sources_count; /* in */
	420	__u64 __user clone_sources; / in */
	421	__u64 parent_root; /* in */
	422	__u64 flags; /* in */
	423	__u64 reserved[4]; /* in */
	424	};
5d13a37b	425
c5739bba CM	426	#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
c5739bba CM	427	struct btrfs_ioctl_vol_args)
6702ed49	428	#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
8352d8a4	429	struct btrfs_ioctl_vol_args)
edbd8d4e CM	430	#define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
edbd8d4e CM	431	struct btrfs_ioctl_vol_args)
8a4b83cc CM	432	#define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
8a4b83cc CM	433	struct btrfs_ioctl_vol_args)
6bf13c0c SW	434	/* trans start and trans end are dangerous, and only for
	435	* use by applications that know how to avoid the
	436	* resulting deadlocks
	437	*/
	438	#define BTRFS_IOC_TRANS_START _IO(BTRFS_IOCTL_MAGIC, 6)
	439	#define BTRFS_IOC_TRANS_END _IO(BTRFS_IOCTL_MAGIC, 7)
	440	#define BTRFS_IOC_SYNC _IO(BTRFS_IOCTL_MAGIC, 8)
	441
f2eb0a24	442	#define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
788f20eb CM	443	#define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
	444	struct btrfs_ioctl_vol_args)
	445	#define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
	446	struct btrfs_ioctl_vol_args)
	447	#define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
	448	struct btrfs_ioctl_vol_args)
c5c9cd4d SW	449
	450	#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
	451	struct btrfs_ioctl_clone_range_args)
	452
3de4586c CM	453	#define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
3de4586c CM	454	struct btrfs_ioctl_vol_args)
76dda93c YZ	455	#define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
76dda93c YZ	456	struct btrfs_ioctl_vol_args)
1e701a32 CM	457	#define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
1e701a32 CM	458	struct btrfs_ioctl_defrag_range_args)
ac8e9819 CM	459	#define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
	460	struct btrfs_ioctl_search_args)
	461	#define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
	462	struct btrfs_ioctl_ino_lookup_args)
6ef5ed0d	463	#define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, u64)
1406e432 JB	464	#define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
1406e432 JB	465	struct btrfs_ioctl_space_args)
46204592 SW	466	#define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
46204592 SW	467	#define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
fdfb1e4f LZ	468	#define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
fdfb1e4f LZ	469	struct btrfs_ioctl_vol_args_v2)
6f72c7e2 AJ	470	#define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
6f72c7e2 AJ	471	struct btrfs_ioctl_vol_args_v2)
d3a94048	472	#define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
0caa102d	473	#define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
475f6387 JS	474	#define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
	475	struct btrfs_ioctl_scrub_args)
	476	#define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
	477	#define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
	478	struct btrfs_ioctl_scrub_args)
	479	#define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
	480	struct btrfs_ioctl_dev_info_args)
	481	#define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
	482	struct btrfs_ioctl_fs_info_args)
c9e9f97b ID	483	#define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
c9e9f97b ID	484	struct btrfs_ioctl_balance_args)
837d5b6e	485	#define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
19a39dce ID	486	#define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
19a39dce ID	487	struct btrfs_ioctl_balance_args)
d7728c96 JS	488	#define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
	489	struct btrfs_ioctl_ino_path_args)
	490	#define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
	491	struct btrfs_ioctl_ino_path_args)
8ea05e3a AB	492	#define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
8ea05e3a AB	493	struct btrfs_ioctl_received_subvol_args)
31db9f7c	494	#define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
02db0844 JB	495	#define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
02db0844 JB	496	struct btrfs_ioctl_vol_args)
5d13a37b AJ	497	#define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
	498	struct btrfs_ioctl_quota_ctl_args)
	499	#define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
	500	struct btrfs_ioctl_qgroup_assign_args)
	501	#define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
	502	struct btrfs_ioctl_qgroup_create_args)
	503	#define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
	504	struct btrfs_ioctl_qgroup_limit_args)
867ab667	505	#define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
867ab667	506	char[BTRFS_LABEL_SIZE])
a8bfd4ab	507	#define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
a8bfd4ab	508	char[BTRFS_LABEL_SIZE])
c11d2c23 SB	509	#define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
c11d2c23 SB	510	struct btrfs_ioctl_get_dev_stats)
e93c89c1 SB	511	#define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
	512	struct btrfs_ioctl_dev_replace_args)
	513
55e301fd	514	#endif /* _UAPI_LINUX_BTRFS_H */