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authorFilipe Brandenburger <filbranden@google.com>2013-01-29 06:04:50 +0000
committerJosef Bacik <jbacik@fusionio.com>2013-02-20 09:37:28 -0500
commit55e301fd57a6239ec14b91a1cf2e70b3dd135194 (patch)
treefe9765a071ef00dd13c144bcfc163584dfcebcbe /fs/btrfs/ioctl.h
parent82b22ac8f651aebbf0149cbbbd5808f07753b09c (diff)
Btrfs: move fs/btrfs/ioctl.h to include/uapi/linux/btrfs.h
The header file will then be installed under /usr/include/linux so that userspace applications can refer to Btrfs ioctls by name and use the same structs used internally in the kernel. Signed-off-by: Filipe Brandenburger <filbranden@google.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/ioctl.h')
-rw-r--r--fs/btrfs/ioctl.h502
1 files changed, 0 insertions, 502 deletions
diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h
deleted file mode 100644
index dabca9cc8c2..00000000000
--- a/fs/btrfs/ioctl.h
+++ /dev/null
@@ -1,502 +0,0 @@
-/*
- * 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 __IOCTL_
-#define __IOCTL_
-#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 */
-};
-
-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_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