X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=ioctl.h;h=620dd3d2a2b03ff0a13923edf38892c1f0b5dea5;hb=dad817d3bad44619c355d11e39512b413da6939c;hp=67c8de9808a7a1f98fc3bc70608f774e2849cd40;hpb=b5e1ca5a49eade75bd411d0f6b5c6adb2257de31;p=platform%2Fupstream%2Fbtrfs-progs.git diff --git a/ioctl.h b/ioctl.h index 67c8de9..620dd3d 100644 --- a/ioctl.h +++ b/ioctl.h @@ -16,16 +16,20 @@ * Boston, MA 021110-1307, USA. */ -#ifndef __IOCTL_ -#define __IOCTL_ -#include -#include -#include +#ifndef __BTRFS_IOCTL_H__ +#define __BTRFS_IOCTL_H__ #ifdef __cplusplus extern "C" { #endif +#include +#include + +#ifndef __user +#define __user +#endif + #define BTRFS_IOCTL_MAGIC 0x94 #define BTRFS_VOL_NAME_MAX 255 @@ -41,6 +45,16 @@ struct btrfs_ioctl_vol_args { #define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0) #define BTRFS_SUBVOL_RDONLY (1ULL << 1) #define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2) +#define BTRFS_DEVICE_SPEC_BY_ID (1ULL << 3) + +#define BTRFS_VOL_ARG_V2_FLAGS_SUPPORTED \ + (BTRFS_SUBVOL_CREATE_ASYNC | \ + BTRFS_SUBVOL_RDONLY | \ + BTRFS_SUBVOL_QGROUP_INHERIT | \ + BTRFS_DEVICE_SPEC_BY_ID) + +#define BTRFS_FSID_SIZE 16 +#define BTRFS_UUID_SIZE 16 #define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0) @@ -67,7 +81,6 @@ struct btrfs_ioctl_qgroup_limit_args { }; #define BTRFS_SUBVOL_NAME_MAX 4039 - struct btrfs_ioctl_vol_args_v2 { __s64 fd; __u64 transid; @@ -75,32 +88,51 @@ struct btrfs_ioctl_vol_args_v2 { union { struct { __u64 size; - struct btrfs_qgroup_inherit *qgroup_inherit; + struct btrfs_qgroup_inherit __user *qgroup_inherit; }; __u64 unused[4]; }; - char name[BTRFS_SUBVOL_NAME_MAX + 1]; + union { + char name[BTRFS_SUBVOL_NAME_MAX + 1]; + __u64 devid; + }; }; -#define BTRFS_FSID_SIZE 16 -#define BTRFS_UUID_SIZE 16 - +/* + * 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; - __u64 tree_extents_scrubbed; - __u64 data_bytes_scrubbed; - __u64 tree_bytes_scrubbed; - __u64 read_errors; - __u64 csum_errors; - __u64 verify_errors; - __u64 no_csum; - __u64 csum_discards; - __u64 super_errors; - __u64 malloc_errors; - __u64 uncorrectable_errors; - __u64 corrected_errors; - __u64 last_physical; - __u64 unverified_errors; + __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 occurrences, 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 occurrences 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 @@ -171,7 +203,17 @@ 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 */ + __u32 nodesize; /* out */ + __u32 sectorsize; /* out */ + __u32 clone_alignment; /* out */ + __u32 reserved32; + __u64 reserved[122]; /* pad to 1k */ +}; + +struct btrfs_ioctl_feature_flags { + __u64 compat_flags; + __u64 compat_ro_flags; + __u64 incompat_flags; }; /* balance control ioctl modes */ @@ -185,7 +227,20 @@ struct btrfs_ioctl_fs_info_args { */ struct btrfs_balance_args { __u64 profiles; - __u64 usage; + + /* + * usage filter + * BTRFS_BALANCE_ARGS_USAGE with a single value means '0..N' + * BTRFS_BALANCE_ARGS_USAGE_RANGE - range syntax, min..max + */ + union { + __u64 usage; + struct { + __u32 usage_min; + __u32 usage_max; + }; + }; + __u64 devid; __u64 pstart; __u64 pend; @@ -196,15 +251,29 @@ struct btrfs_balance_args { __u64 flags; - __u64 limit; - - __u64 unused[7]; + /* + * BTRFS_BALANCE_ARGS_LIMIT with value 'limit' + * BTRFS_BALANCE_ARGS_LIMIT_RANGE - the extend version can use minimum + * and maximum + */ + union { + __u64 limit; /* limit number of processed chunks */ + struct { + __u32 limit_min; + __u32 limit_max; + }; + }; + __u32 stripes_min; + __u32 stripes_max; + __u64 unused[6]; } __attribute__ ((__packed__)); +/* report balance progress to userspace */ struct btrfs_balance_progress { - __u64 expected; - __u64 considered; - __u64 completed; + __u64 expected; /* estimated # of chunks that will be + * relocated to fulfil 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) @@ -224,6 +293,13 @@ struct btrfs_ioctl_balance_args { __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; @@ -279,17 +355,54 @@ struct btrfs_ioctl_search_args { char buf[BTRFS_SEARCH_ARGS_BUFSIZE]; }; -#define BTRFS_INO_LOOKUP_PATH_MAX 4080 -struct btrfs_ioctl_ino_lookup_args { - __u64 treeid; - __u64 objectid; - char name[BTRFS_INO_LOOKUP_PATH_MAX]; +/* + * Extended version of TREE_SEARCH ioctl that can return more than 4k of bytes. + * The allocated size of the buffer is set in buf_size. + */ +struct btrfs_ioctl_search_args_v2 { + struct btrfs_ioctl_search_key key; /* in/out - search parameters */ + __u64 buf_size; /* in - size of buffer + * out - on EOVERFLOW: needed size + * to store item */ + __u64 buf[0]; /* out - found items */ +}; + +/* With a @src_length of zero, the range from @src_offset->EOF is cloned! */ +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 +#define BTRFS_SAME_DATA_DIFFERS 1 +/* For extent-same ioctl */ +struct btrfs_ioctl_same_extent_info { + __s64 fd; /* in - destination file */ + __u64 logical_offset; /* in - start of extent in destination */ + __u64 bytes_deduped; /* out - total # of bytes we were able + * to dedupe from this file */ + /* status of this dedupe operation: + * 0 if dedup succeeds + * < 0 for error + * == BTRFS_SAME_DATA_DIFFERS if data differs + */ + __s32 status; /* out - see above description */ + __u32 reserved; +}; + +struct btrfs_ioctl_same_args { + __u64 logical_offset; /* in - start of extent in source */ + __u64 length; /* in - length of extent */ + __u16 dest_count; /* in - total elements in info array */ + __u16 reserved1; + __u32 reserved2; + struct btrfs_ioctl_same_extent_info info[0]; +}; + struct btrfs_ioctl_defrag_range_args { /* start of the defrag operation */ __u64 start; @@ -357,50 +470,6 @@ struct btrfs_ioctl_logical_ino_args { __u64 inodes; }; -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 - -/* - * Do not add the leading stream header. Used when multiple snapshots - * are sent back to back. - */ -#define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2 - -/* - * Omit the command at the end of the stream that indicated the end - * of the stream. This option is used when multiple snapshots are - * sent back to back. - */ -#define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4 - -struct btrfs_ioctl_send_args { - __s64 send_fd; /* in */ - __u64 clone_sources_count; /* in */ - __u64 *clone_sources; /* in */ - __u64 parent_root; /* in */ - __u64 flags; /* in */ - __u64 reserved[4]; /* in */ -}; - enum btrfs_dev_stat_values { /* disk I/O failure stats */ BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */ @@ -459,6 +528,54 @@ 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 + +/* + * Do not add the leading stream header. Used when multiple snapshots + * are sent back to back. + */ +#define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2 + +/* + * Omit the command at the end of the stream that indicated the end + * of the stream. This option is used when multiple snapshots are + * sent back to back. + */ +#define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4 + +#define BTRFS_SEND_FLAG_MASK \ + (BTRFS_SEND_FLAG_NO_FILE_DATA | \ + BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \ + BTRFS_SEND_FLAG_OMIT_END_CMD) + +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 */ +}; /* Error codes as returned by the kernel */ enum btrfs_err_code { @@ -509,14 +626,6 @@ static inline char *btrfs_err_str(enum btrfs_err_code err_code) struct btrfs_ioctl_vol_args) #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \ struct btrfs_ioctl_vol_args) - -/* With a @src_length of zero, the range from @src_offset->EOF is cloned! */ -struct btrfs_ioctl_clone_range_args { - __s64 src_fd; - __u64 src_offset, src_length; - __u64 dest_offset; -}; - /* trans start and trans end are dangerous, and only for * use by applications that know how to avoid the * resulting deadlocks @@ -532,8 +641,10 @@ struct btrfs_ioctl_clone_range_args { 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, \ @@ -542,6 +653,8 @@ struct btrfs_ioctl_clone_range_args { struct btrfs_ioctl_defrag_range_args) #define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \ struct btrfs_ioctl_search_args) +#define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \ + struct btrfs_ioctl_search_args_v2) #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) @@ -572,13 +685,12 @@ struct btrfs_ioctl_clone_range_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_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \ - struct btrfs_ioctl_vol_args) + struct btrfs_ioctl_logical_ino_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, \ @@ -600,12 +712,16 @@ struct btrfs_ioctl_clone_range_args { struct btrfs_ioctl_get_dev_stats) #define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \ struct btrfs_ioctl_dev_replace_args) +#define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \ + struct btrfs_ioctl_same_args) #define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \ struct btrfs_ioctl_feature_flags) #define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \ struct btrfs_ioctl_feature_flags[2]) #define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \ struct btrfs_ioctl_feature_flags[3]) +#define BTRFS_IOC_RM_DEV_V2 _IOW(BTRFS_IOCTL_MAGIC, 58, \ + struct btrfs_ioctl_vol_args_v2) #ifdef __cplusplus } #endif