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/*
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* Copyright ( c ) 1995 - 2005 Silicon Graphics , Inc .
* All Rights Reserved .
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*
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* This program is free software ; you can redistribute it and / or
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* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation .
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*
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* This program is distributed in the hope that it would be useful ,
* but WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the
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* GNU Lesser General Public License for more details .
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program ; if not , write the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA
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*/
# ifndef __XFS_FS_H__
# define __XFS_FS_H__
/*
* SGI ' s XFS filesystem ' s major stuff ( constants , structures )
*/
# define XFS_NAME "xfs"
/*
* Direct I / O attribute record used with XFS_IOC_DIOINFO
* d_miniosz is the min xfer size , xfer size multiple and file seek offset
* alignment .
*/
# ifndef HAVE_DIOATTR
struct dioattr {
__u32 d_mem ; /* data buffer memory alignment */
__u32 d_miniosz ; /* min xfer size */
__u32 d_maxiosz ; /* max xfer size */
} ;
# endif
/*
* Structure for XFS_IOC_FSGETXATTR [ A ] and XFS_IOC_FSSETXATTR .
*/
# ifndef HAVE_FSXATTR
struct fsxattr {
__u32 fsx_xflags ; /* xflags field value (get/set) */
__u32 fsx_extsize ; /* extsize field value (get/set)*/
__u32 fsx_nextents ; /* nextents field value (get) */
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__u32 fsx_projid ; /* project identifier (get/set) */
unsigned char fsx_pad [ 12 ] ;
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} ;
# endif
/*
* Flags for the bs_xflags / fsx_xflags field
* There should be a one - to - one correspondence between these flags and the
* XFS_DIFLAG_s .
*/
# define XFS_XFLAG_REALTIME 0x00000001 /* data in realtime volume */
# define XFS_XFLAG_PREALLOC 0x00000002 /* preallocated file extents */
# define XFS_XFLAG_IMMUTABLE 0x00000008 /* file cannot be modified */
# define XFS_XFLAG_APPEND 0x00000010 /* all writes append */
# define XFS_XFLAG_SYNC 0x00000020 /* all writes synchronous */
# define XFS_XFLAG_NOATIME 0x00000040 /* do not update access time */
# define XFS_XFLAG_NODUMP 0x00000080 /* do not include in backups */
# define XFS_XFLAG_RTINHERIT 0x00000100 /* create with rt bit set */
# define XFS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */
# define XFS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */
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# define XFS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */
# define XFS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */
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# define XFS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
/*
* Structure for XFS_IOC_GETBMAP .
* On input , fill in bmv_offset and bmv_length of the first structure
* to indicate the area of interest in the file , and bmv_entry with the
* number of array elements given . The first structure is updated on
* return to give the offset and length for the next call .
*/
# ifndef HAVE_GETBMAP
struct getbmap {
__s64 bmv_offset ; /* file offset of segment in blocks */
__s64 bmv_block ; /* starting block (64-bit daddr_t) */
__s64 bmv_length ; /* length of segment, blocks */
__s32 bmv_count ; /* # of entries in array incl. 1st */
__s32 bmv_entries ; /* # of entries filled in (output) */
} ;
# endif
/*
* Structure for XFS_IOC_GETBMAPX . Fields bmv_offset through bmv_entries
* are used exactly as in the getbmap structure . The getbmapx structure
* has additional bmv_iflags and bmv_oflags fields . The bmv_iflags field
* is only used for the first structure . It contains input flags
* specifying XFS_IOC_GETBMAPX actions . The bmv_oflags field is filled
* in by the XFS_IOC_GETBMAPX command for each returned structure after
* the first .
*/
# ifndef HAVE_GETBMAPX
struct getbmapx {
__s64 bmv_offset ; /* file offset of segment in blocks */
__s64 bmv_block ; /* starting block (64-bit daddr_t) */
__s64 bmv_length ; /* length of segment, blocks */
__s32 bmv_count ; /* # of entries in array incl. 1st */
__s32 bmv_entries ; /* # of entries filled in (output). */
__s32 bmv_iflags ; /* input flags (1st structure) */
__s32 bmv_oflags ; /* output flags (after 1st structure)*/
__s32 bmv_unused1 ; /* future use */
__s32 bmv_unused2 ; /* future use */
} ;
# endif
/* bmv_iflags values - set by XFS_IOC_GETBMAPX caller. */
# define BMV_IF_ATTRFORK 0x1 /* return attr fork rather than data */
# define BMV_IF_NO_DMAPI_READ 0x2 /* Do not generate DMAPI read event */
# define BMV_IF_PREALLOC 0x4 /* rtn status BMV_OF_PREALLOC if req */
# define BMV_IF_VALID (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC)
# ifdef __KERNEL__
# define BMV_IF_EXTENDED 0x40000000 /* getpmapx if set */
# endif
/* bmv_oflags values - returned for for each non-header segment */
# define BMV_OF_PREALLOC 0x1 /* segment = unwritten pre-allocation */
/* Convert getbmap <-> getbmapx - move fields from p1 to p2. */
# define GETBMAP_CONVERT(p1,p2) { \
p2 . bmv_offset = p1 . bmv_offset ; \
p2 . bmv_block = p1 . bmv_block ; \
p2 . bmv_length = p1 . bmv_length ; \
p2 . bmv_count = p1 . bmv_count ; \
p2 . bmv_entries = p1 . bmv_entries ; }
/*
* Structure for XFS_IOC_FSSETDM .
* For use by backup and restore programs to set the XFS on - disk inode
* fields di_dmevmask and di_dmstate . These must be set to exactly and
* only values previously obtained via xfs_bulkstat ! ( Specifically the
* xfs_bstat_t fields bs_dmevmask and bs_dmstate . )
*/
# ifndef HAVE_FSDMIDATA
struct fsdmidata {
__u32 fsd_dmevmask ; /* corresponds to di_dmevmask */
__u16 fsd_padding ;
__u16 fsd_dmstate ; /* corresponds to di_dmstate */
} ;
# endif
/*
* File segment locking set data type for 64 bit access .
* Also used for all the RESV / FREE interfaces .
*/
typedef struct xfs_flock64 {
__s16 l_type ;
__s16 l_whence ;
__s64 l_start ;
__s64 l_len ; /* len == 0 means until end of file */
__s32 l_sysid ;
__u32 l_pid ;
__s32 l_pad [ 4 ] ; /* reserve area */
} xfs_flock64_t ;
/*
* Output for XFS_IOC_FSGEOMETRY_V1
*/
typedef struct xfs_fsop_geom_v1 {
__u32 blocksize ; /* filesystem (data) block size */
__u32 rtextsize ; /* realtime extent size */
__u32 agblocks ; /* fsblocks in an AG */
__u32 agcount ; /* number of allocation groups */
__u32 logblocks ; /* fsblocks in the log */
__u32 sectsize ; /* (data) sector size, bytes */
__u32 inodesize ; /* inode size in bytes */
__u32 imaxpct ; /* max allowed inode space(%) */
__u64 datablocks ; /* fsblocks in data subvolume */
__u64 rtblocks ; /* fsblocks in realtime subvol */
__u64 rtextents ; /* rt extents in realtime subvol*/
__u64 logstart ; /* starting fsblock of the log */
unsigned char uuid [ 16 ] ; /* unique id of the filesystem */
__u32 sunit ; /* stripe unit, fsblocks */
__u32 swidth ; /* stripe width, fsblocks */
__s32 version ; /* structure version */
__u32 flags ; /* superblock version flags */
__u32 logsectsize ; /* log sector size, bytes */
__u32 rtsectsize ; /* realtime sector size, bytes */
__u32 dirblocksize ; /* directory block size, bytes */
} xfs_fsop_geom_v1_t ;
/*
* Output for XFS_IOC_FSGEOMETRY
*/
typedef struct xfs_fsop_geom {
__u32 blocksize ; /* filesystem (data) block size */
__u32 rtextsize ; /* realtime extent size */
__u32 agblocks ; /* fsblocks in an AG */
__u32 agcount ; /* number of allocation groups */
__u32 logblocks ; /* fsblocks in the log */
__u32 sectsize ; /* (data) sector size, bytes */
__u32 inodesize ; /* inode size in bytes */
__u32 imaxpct ; /* max allowed inode space(%) */
__u64 datablocks ; /* fsblocks in data subvolume */
__u64 rtblocks ; /* fsblocks in realtime subvol */
__u64 rtextents ; /* rt extents in realtime subvol*/
__u64 logstart ; /* starting fsblock of the log */
unsigned char uuid [ 16 ] ; /* unique id of the filesystem */
__u32 sunit ; /* stripe unit, fsblocks */
__u32 swidth ; /* stripe width, fsblocks */
__s32 version ; /* structure version */
__u32 flags ; /* superblock version flags */
__u32 logsectsize ; /* log sector size, bytes */
__u32 rtsectsize ; /* realtime sector size, bytes */
__u32 dirblocksize ; /* directory block size, bytes */
__u32 logsunit ; /* log stripe unit, bytes */
} xfs_fsop_geom_t ;
/* Output for XFS_FS_COUNTS */
typedef struct xfs_fsop_counts {
__u64 freedata ; /* free data section blocks */
__u64 freertx ; /* free rt extents */
__u64 freeino ; /* free inodes */
__u64 allocino ; /* total allocated inodes */
} xfs_fsop_counts_t ;
/* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
typedef struct xfs_fsop_resblks {
__u64 resblks ;
__u64 resblks_avail ;
} xfs_fsop_resblks_t ;
# define XFS_FSOP_GEOM_VERSION 0
# define XFS_FSOP_GEOM_FLAGS_ATTR 0x0001 /* attributes in use */
# define XFS_FSOP_GEOM_FLAGS_NLINK 0x0002 /* 32-bit nlink values */
# define XFS_FSOP_GEOM_FLAGS_QUOTA 0x0004 /* quotas enabled */
# define XFS_FSOP_GEOM_FLAGS_IALIGN 0x0008 /* inode alignment */
# define XFS_FSOP_GEOM_FLAGS_DALIGN 0x0010 /* large data alignment */
# define XFS_FSOP_GEOM_FLAGS_SHARED 0x0020 /* read-only shared */
# define XFS_FSOP_GEOM_FLAGS_EXTFLG 0x0040 /* special extent flag */
# define XFS_FSOP_GEOM_FLAGS_DIRV2 0x0080 /* directory version 2 */
# define XFS_FSOP_GEOM_FLAGS_LOGV2 0x0100 /* log format version 2 */
# define XFS_FSOP_GEOM_FLAGS_SECTOR 0x0200 /* sector sizes >1BB */
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# define XFS_FSOP_GEOM_FLAGS_ATTR2 0x0400 /* inline attributes rework */
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/*
* Minimum and maximum sizes need for growth checks
*/
# define XFS_MIN_AG_BLOCKS 64
# define XFS_MIN_LOG_BLOCKS 512
# define XFS_MAX_LOG_BLOCKS (64 * 1024)
# define XFS_MIN_LOG_BYTES (256 * 1024)
# define XFS_MAX_LOG_BYTES (128 * 1024 * 1024)
/*
* Structures for XFS_IOC_FSGROWFSDATA , XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
*/
typedef struct xfs_growfs_data {
__u64 newblocks ; /* new data subvol size, fsblocks */
__u32 imaxpct ; /* new inode space percentage limit */
} xfs_growfs_data_t ;
typedef struct xfs_growfs_log {
__u32 newblocks ; /* new log size, fsblocks */
__u32 isint ; /* 1 if new log is internal */
} xfs_growfs_log_t ;
typedef struct xfs_growfs_rt {
__u64 newblocks ; /* new realtime size, fsblocks */
__u32 extsize ; /* new realtime extent size, fsblocks */
} xfs_growfs_rt_t ;
/*
* Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
*/
typedef struct xfs_bstime {
time_t tv_sec ; /* seconds */
__s32 tv_nsec ; /* and nanoseconds */
} xfs_bstime_t ;
typedef struct xfs_bstat {
__u64 bs_ino ; /* inode number */
__u16 bs_mode ; /* type and mode */
__u16 bs_nlink ; /* number of links */
__u32 bs_uid ; /* user id */
__u32 bs_gid ; /* group id */
__u32 bs_rdev ; /* device value */
__s32 bs_blksize ; /* block size */
__s64 bs_size ; /* file size */
xfs_bstime_t bs_atime ; /* access time */
xfs_bstime_t bs_mtime ; /* modify time */
xfs_bstime_t bs_ctime ; /* inode change time */
int64_t bs_blocks ; /* number of blocks */
__u32 bs_xflags ; /* extended flags */
__s32 bs_extsize ; /* extent size */
__s32 bs_extents ; /* number of extents */
__u32 bs_gen ; /* generation count */
__u16 bs_projid ; /* project id */
unsigned char bs_pad [ 14 ] ; /* pad space, unused */
__u32 bs_dmevmask ; /* DMIG event mask */
__u16 bs_dmstate ; /* DMIG state info */
__u16 bs_aextents ; /* attribute number of extents */
} xfs_bstat_t ;
/*
* The user - level BulkStat Request interface structure .
*/
typedef struct xfs_fsop_bulkreq {
__u64 __user * lastip ; /* last inode # pointer */
__s32 icount ; /* count of entries in buffer */
void __user * ubuffer ; /* user buffer for inode desc. */
__s32 __user * ocount ; /* output count pointer */
} xfs_fsop_bulkreq_t ;
/*
* Structures returned from xfs_inumbers routine ( XFS_IOC_FSINUMBERS ) .
*/
typedef struct xfs_inogrp {
__u64 xi_startino ; /* starting inode number */
__s32 xi_alloccount ; /* # bits set in allocmask */
__u64 xi_allocmask ; /* mask of allocated inodes */
} xfs_inogrp_t ;
/*
* Error injection .
*/
typedef struct xfs_error_injection {
__s32 fd ;
__s32 errtag ;
} xfs_error_injection_t ;
/*
* The user - level Handle Request interface structure .
*/
typedef struct xfs_fsop_handlereq {
__u32 fd ; /* fd for FD_TO_HANDLE */
void __user * path ; /* user pathname */
__u32 oflags ; /* open flags */
void __user * ihandle ; /* user supplied handle */
__u32 ihandlen ; /* user supplied length */
void __user * ohandle ; /* user buffer for handle */
__u32 __user * ohandlen ; /* user buffer length */
} xfs_fsop_handlereq_t ;
/*
* Compound structures for passing args through Handle Request interfaces
* xfs_fssetdm_by_handle , xfs_attrlist_by_handle , xfs_attrmulti_by_handle
* - ioctls : XFS_IOC_FSSETDM_BY_HANDLE , XFS_IOC_ATTRLIST_BY_HANDLE , and
* XFS_IOC_ATTRMULTI_BY_HANDLE
*/
typedef struct xfs_fsop_setdm_handlereq {
struct xfs_fsop_handlereq hreq ; /* handle information */
struct fsdmidata __user * data ; /* DMAPI data */
} xfs_fsop_setdm_handlereq_t ;
typedef struct xfs_attrlist_cursor {
__u32 opaque [ 4 ] ;
} xfs_attrlist_cursor_t ;
typedef struct xfs_fsop_attrlist_handlereq {
struct xfs_fsop_handlereq hreq ; /* handle interface structure */
struct xfs_attrlist_cursor pos ; /* opaque cookie, list offset */
__u32 flags ; /* which namespace to use */
__u32 buflen ; /* length of buffer supplied */
void __user * buffer ; /* returned names */
} xfs_fsop_attrlist_handlereq_t ;
typedef struct xfs_attr_multiop {
__u32 am_opcode ;
__s32 am_error ;
void __user * am_attrname ;
void __user * am_attrvalue ;
__u32 am_length ;
__u32 am_flags ;
} xfs_attr_multiop_t ;
typedef struct xfs_fsop_attrmulti_handlereq {
struct xfs_fsop_handlereq hreq ; /* handle interface structure */
__u32 opcount ; /* count of following multiop */
struct xfs_attr_multiop __user * ops ; /* attr_multi data */
} xfs_fsop_attrmulti_handlereq_t ;
/*
* per machine unique filesystem identifier types .
*/
typedef struct { __u32 val [ 2 ] ; } xfs_fsid_t ; /* file system id type */
# ifndef HAVE_FID
# define MAXFIDSZ 46
typedef struct fid {
__u16 fid_len ; /* length of data in bytes */
unsigned char fid_data [ MAXFIDSZ ] ; /* data (fid_len worth) */
} fid_t ;
# endif
typedef struct xfs_fid {
__u16 xfs_fid_len ; /* length of remainder */
__u16 xfs_fid_pad ;
__u32 xfs_fid_gen ; /* generation number */
__u64 xfs_fid_ino ; /* 64 bits inode number */
} xfs_fid_t ;
typedef struct xfs_fid2 {
__u16 fid_len ; /* length of remainder */
__u16 fid_pad ; /* padding, must be zero */
__u32 fid_gen ; /* generation number */
__u64 fid_ino ; /* inode number */
} xfs_fid2_t ;
typedef struct xfs_handle {
union {
__s64 align ; /* force alignment of ha_fid */
xfs_fsid_t _ha_fsid ; /* unique file system identifier */
} ha_u ;
xfs_fid_t ha_fid ; /* file system specific file ID */
} xfs_handle_t ;
# define ha_fsid ha_u._ha_fsid
# define XFS_HSIZE(handle) (((char *) &(handle).ha_fid.xfs_fid_pad \
- ( char * ) & ( handle ) ) \
+ ( handle ) . ha_fid . xfs_fid_len )
# define XFS_HANDLE_CMP(h1, h2) memcmp(h1, h2, sizeof(xfs_handle_t))
# define FSHSIZE sizeof(fsid_t)
/*
* Flags for going down operation
*/
# define XFS_FSOP_GOING_FLAGS_DEFAULT 0x0 /* going down */
# define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */
# define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */
/*
* ioctl commands that are used by Linux filesystems
*/
# define XFS_IOC_GETXFLAGS _IOR('f', 1, long)
# define XFS_IOC_SETXFLAGS _IOW('f', 2, long)
# define XFS_IOC_GETVERSION _IOR('v', 1, long)
/*
* ioctl commands that replace IRIX fcntl ( ) ' s
* For ' documentation ' purposed more than anything else ,
* the " cmd # " field reflects the IRIX fcntl number .
*/
# define XFS_IOC_ALLOCSP _IOW ('X', 10, struct xfs_flock64)
# define XFS_IOC_FREESP _IOW ('X', 11, struct xfs_flock64)
# define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr)
# define XFS_IOC_FSGETXATTR _IOR ('X', 31, struct fsxattr)
# define XFS_IOC_FSSETXATTR _IOW ('X', 32, struct fsxattr)
# define XFS_IOC_ALLOCSP64 _IOW ('X', 36, struct xfs_flock64)
# define XFS_IOC_FREESP64 _IOW ('X', 37, struct xfs_flock64)
# define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap)
# define XFS_IOC_FSSETDM _IOW ('X', 39, struct fsdmidata)
# define XFS_IOC_RESVSP _IOW ('X', 40, struct xfs_flock64)
# define XFS_IOC_UNRESVSP _IOW ('X', 41, struct xfs_flock64)
# define XFS_IOC_RESVSP64 _IOW ('X', 42, struct xfs_flock64)
# define XFS_IOC_UNRESVSP64 _IOW ('X', 43, struct xfs_flock64)
# define XFS_IOC_GETBMAPA _IOWR('X', 44, struct getbmap)
# define XFS_IOC_FSGETXATTRA _IOR ('X', 45, struct fsxattr)
/* XFS_IOC_SETBIOSIZE ---- deprecated 46 */
/* XFS_IOC_GETBIOSIZE ---- deprecated 47 */
# define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap)
/*
* ioctl commands that replace IRIX syssgi ( ) ' s
*/
# define XFS_IOC_FSGEOMETRY_V1 _IOR ('X', 100, struct xfs_fsop_geom_v1)
# define XFS_IOC_FSBULKSTAT _IOWR('X', 101, struct xfs_fsop_bulkreq)
# define XFS_IOC_FSBULKSTAT_SINGLE _IOWR('X', 102, struct xfs_fsop_bulkreq)
# define XFS_IOC_FSINUMBERS _IOWR('X', 103, struct xfs_fsop_bulkreq)
# define XFS_IOC_PATH_TO_FSHANDLE _IOWR('X', 104, struct xfs_fsop_handlereq)
# define XFS_IOC_PATH_TO_HANDLE _IOWR('X', 105, struct xfs_fsop_handlereq)
# define XFS_IOC_FD_TO_HANDLE _IOWR('X', 106, struct xfs_fsop_handlereq)
# define XFS_IOC_OPEN_BY_HANDLE _IOWR('X', 107, struct xfs_fsop_handlereq)
# define XFS_IOC_READLINK_BY_HANDLE _IOWR('X', 108, struct xfs_fsop_handlereq)
# define XFS_IOC_SWAPEXT _IOWR('X', 109, struct xfs_swapext)
# define XFS_IOC_FSGROWFSDATA _IOW ('X', 110, struct xfs_growfs_data)
# define XFS_IOC_FSGROWFSLOG _IOW ('X', 111, struct xfs_growfs_log)
# define XFS_IOC_FSGROWFSRT _IOW ('X', 112, struct xfs_growfs_rt)
# define XFS_IOC_FSCOUNTS _IOR ('X', 113, struct xfs_fsop_counts)
# define XFS_IOC_SET_RESBLKS _IOWR('X', 114, struct xfs_fsop_resblks)
# define XFS_IOC_GET_RESBLKS _IOR ('X', 115, struct xfs_fsop_resblks)
# define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection)
# define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection)
/* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */
# define XFS_IOC_FREEZE _IOWR('X', 119, int)
# define XFS_IOC_THAW _IOWR('X', 120, int)
# define XFS_IOC_FSSETDM_BY_HANDLE _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
# define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
# define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
# define XFS_IOC_FSGEOMETRY _IOR ('X', 124, struct xfs_fsop_geom)
# define XFS_IOC_GOINGDOWN _IOR ('X', 125, __uint32_t)
/* XFS_IOC_GETFSUUID ---------- deprecated 140 */
# ifndef HAVE_BBMACROS
/*
* Block I / O parameterization . A basic block ( BB ) is the lowest size of
* filesystem allocation , and must equal 512. Length units given to bio
* routines are in BB ' s .
*/
# define BBSHIFT 9
# define BBSIZE (1<<BBSHIFT)
# define BBMASK (BBSIZE-1)
# define BTOBB(bytes) (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
# define BTOBBT(bytes) ((__u64)(bytes) >> BBSHIFT)
# define BBTOB(bbs) ((bbs) << BBSHIFT)
# endif
# endif /* __XFS_FS_H__ */
