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/* * Copyright (c) 2000-2005 Silicon Graphics, Inc. * 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 as * published by the Free Software Foundation. * * 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 * 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 the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef __XFS_MOUNT_H__ #define __XFS_MOUNT_H__ typedef struct xfs_trans_reservations { uint tr_write; /* extent alloc trans */ uint tr_itruncate; /* truncate trans */ uint tr_rename; /* rename trans */ uint tr_link; /* link trans */ uint tr_remove; /* unlink trans */ uint tr_symlink; /* symlink trans */ uint tr_create; /* create trans */ uint tr_mkdir; /* mkdir trans */ uint tr_ifree; /* inode free trans */ uint tr_ichange; /* inode update trans */ uint tr_growdata; /* fs data section grow trans */ uint tr_swrite; /* sync write inode trans */ uint tr_addafork; /* cvt inode to attributed trans */ uint tr_writeid; /* write setuid/setgid file */ uint tr_attrinval; /* attr fork buffer invalidation */ uint tr_attrset; /* set/create an attribute */ uint tr_attrrm; /* remove an attribute */ uint tr_clearagi; /* clear bad agi unlinked ino bucket */ uint tr_growrtalloc; /* grow realtime allocations */ uint tr_growrtzero; /* grow realtime zeroing */ uint tr_growrtfree; /* grow realtime freeing */ } xfs_trans_reservations_t; #ifndef __KERNEL__ /* * Moved here from xfs_ag.h to avoid reordering header files */ #define XFS_DADDR_TO_AGNO(mp,d) \ ((xfs_agnumber_t)(XFS_BB_TO_FSBT(mp, d) / (mp)->m_sb.sb_agblocks)) #define XFS_DADDR_TO_AGBNO(mp,d) \ ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp, d) % (mp)->m_sb.sb_agblocks)) #else struct cred; struct log; struct vfs; struct vnode; struct xfs_mount_args; struct xfs_ihash; struct xfs_chash; struct xfs_inode; struct xfs_perag; struct xfs_iocore; struct xfs_bmbt_irec; struct xfs_bmap_free; extern struct vfsops xfs_vfsops; extern struct vnodeops xfs_vnodeops; #define AIL_LOCK_T lock_t #define AIL_LOCKINIT(x,y) spinlock_init(x,y) #define AIL_LOCK_DESTROY(x) spinlock_destroy(x) #define AIL_LOCK(mp,s) s=mutex_spinlock(&(mp)->m_ail_lock) #define AIL_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_ail_lock, s) /* * Prototypes and functions for the Data Migration subsystem. */ typedef int (*xfs_send_data_t)(int, struct vnode *, xfs_off_t, size_t, int, vrwlock_t *); typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); typedef int (*xfs_send_destroy_t)(struct vnode *, dm_right_t); typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct vfs *, struct vnode *, dm_right_t, struct vnode *, dm_right_t, char *, char *, mode_t, int, int); typedef void (*xfs_send_unmount_t)(struct vfs *, struct vnode *, dm_right_t, mode_t, int, int); typedef struct xfs_dmops { xfs_send_data_t xfs_send_data; xfs_send_mmap_t xfs_send_mmap; xfs_send_destroy_t xfs_send_destroy; xfs_send_namesp_t xfs_send_namesp; xfs_send_unmount_t xfs_send_unmount; } xfs_dmops_t; #define XFS_SEND_DATA(mp, ev,vp,off,len,fl,lock) \ (*(mp)->m_dm_ops.xfs_send_data)(ev,vp,off,len,fl,lock) #define XFS_SEND_MMAP(mp, vma,fl) \ (*(mp)->m_dm_ops.xfs_send_mmap)(vma,fl) #define XFS_SEND_DESTROY(mp, vp,right) \ (*(mp)->m_dm_ops.xfs_send_destroy)(vp,right) #define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ (*(mp)->m_dm_ops.xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl) #define XFS_SEND_PREUNMOUNT(mp, vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ (*(mp)->m_dm_ops.xfs_send_namesp)(DM_EVENT_PREUNMOUNT,vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl) #define XFS_SEND_UNMOUNT(mp, vfsp,vp,right,mode,rval,fl) \ (*(mp)->m_dm_ops.xfs_send_unmount)(vfsp,vp,right,mode,rval,fl) /* * Prototypes and functions for the Quota Management subsystem. */ struct xfs_dquot; struct xfs_dqtrxops; struct xfs_quotainfo; typedef int (*xfs_qminit_t)(struct xfs_mount *, uint *, uint *); typedef int (*xfs_qmmount_t)(struct xfs_mount *, uint, uint, int); typedef int (*xfs_qmunmount_t)(struct xfs_mount *); typedef void (*xfs_qmdone_t)(struct xfs_mount *); typedef void (*xfs_dqrele_t)(struct xfs_dquot *); typedef int (*xfs_dqattach_t)(struct xfs_inode *, uint); typedef void (*xfs_dqdetach_t)(struct xfs_inode *); typedef int (*xfs_dqpurgeall_t)(struct xfs_mount *, uint); typedef int (*xfs_dqvopalloc_t)(struct xfs_mount *, struct xfs_inode *, uid_t, gid_t, prid_t, uint, struct xfs_dquot **, struct xfs_dquot **); typedef void (*xfs_dqvopcreate_t)(struct xfs_trans *, struct xfs_inode *, struct xfs_dquot *, struct xfs_dquot *); typedef int (*xfs_dqvoprename_t)(struct xfs_inode **); typedef struct xfs_dquot * (*xfs_dqvopchown_t)( struct xfs_trans *, struct xfs_inode *, struct xfs_dquot **, struct xfs_dquot *); typedef int (*xfs_dqvopchownresv_t)(struct xfs_trans *, struct xfs_inode *, struct xfs_dquot *, struct xfs_dquot *, uint); typedef struct xfs_qmops { xfs_qminit_t xfs_qminit; xfs_qmdone_t xfs_qmdone; xfs_qmmount_t xfs_qmmount; xfs_qmunmount_t xfs_qmunmount; xfs_dqrele_t xfs_dqrele; xfs_dqattach_t xfs_dqattach; xfs_dqdetach_t xfs_dqdetach; xfs_dqpurgeall_t xfs_dqpurgeall; xfs_dqvopalloc_t xfs_dqvopalloc; xfs_dqvopcreate_t xfs_dqvopcreate; xfs_dqvoprename_t xfs_dqvoprename; xfs_dqvopchown_t xfs_dqvopchown; xfs_dqvopchownresv_t xfs_dqvopchownresv; struct xfs_dqtrxops *xfs_dqtrxops; } xfs_qmops_t; #define XFS_QM_INIT(mp, mnt, fl) \ (*(mp)->m_qm_ops.xfs_qminit)(mp, mnt, fl) #define XFS_QM_MOUNT(mp, mnt, fl, mfsi_flags) \ (*(mp)->m_qm_ops.xfs_qmmount)(mp, mnt, fl, mfsi_flags) #define XFS_QM_UNMOUNT(mp) \ (*(mp)->m_qm_ops.xfs_qmunmount)(mp) #define XFS_QM_DONE(mp) \ (*(mp)->m_qm_ops.xfs_qmdone)(mp) #define XFS_QM_DQRELE(mp, dq) \ (*(mp)->m_qm_ops.xfs_dqrele)(dq) #define XFS_QM_DQATTACH(mp, ip, fl) \ (*(mp)->m_qm_ops.xfs_dqattach)(ip, fl) #define XFS_QM_DQDETACH(mp, ip) \ (*(mp)->m_qm_ops.xfs_dqdetach)(ip) #define XFS_QM_DQPURGEALL(mp, fl) \ (*(mp)->m_qm_ops.xfs_dqpurgeall)(mp, fl) #define XFS_QM_DQVOPALLOC(mp, ip, uid, gid, prid, fl, dq1, dq2) \ (*(mp)->m_qm_ops.xfs_dqvopalloc)(mp, ip, uid, gid, prid, fl, dq1, dq2) #define XFS_QM_DQVOPCREATE(mp, tp, ip, dq1, dq2) \ (*(mp)->m_qm_ops.xfs_dqvopcreate)(tp, ip, dq1, dq2) #define XFS_QM_DQVOPRENAME(mp, ip) \ (*(mp)->m_qm_ops.xfs_dqvoprename)(ip) #define XFS_QM_DQVOPCHOWN(mp, tp, ip, dqp, dq) \ (*(mp)->m_qm_ops.xfs_dqvopchown)(tp, ip, dqp, dq) #define XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, dq1, dq2, fl) \ (*(mp)->m_qm_ops.xfs_dqvopchownresv)(tp, ip, dq1, dq2, fl) /* * Prototypes and functions for I/O core modularization. */ typedef int (*xfs_ioinit_t)(struct vfs *, struct xfs_mount_args *, int); typedef int (*xfs_bmapi_t)(struct xfs_trans *, void *, xfs_fileoff_t, xfs_filblks_t, int, xfs_fsblock_t *, xfs_extlen_t, struct xfs_bmbt_irec *, int *, struct xfs_bmap_free *); typedef int (*xfs_bmap_eof_t)(void *, xfs_fileoff_t, int, int *); typedef int (*xfs_iomap_write_direct_t)( void *, xfs_off_t, size_t, int, struct xfs_bmbt_irec *, int *, int); typedef int (*xfs_iomap_write_delay_t)( void *, xfs_off_t, size_t, int, struct xfs_bmbt_irec *, int *); typedef int (*xfs_iomap_write_allocate_t)( void *, xfs_off_t, size_t, struct xfs_bmbt_irec *, int *); typedef int (*xfs_iomap_write_unwritten_t)( void *, xfs_off_t, size_t); typedef uint (*xfs_lck_map_shared_t)(void *); typedef void (*xfs_lock_t)(void *, uint); typedef void (*xfs_lock_demote_t)(void *, uint); typedef int (*xfs_lock_nowait_t)(void *, uint); typedef void (*xfs_unlk_t)(void *, unsigned int); typedef xfs_fsize_t (*xfs_size_t)(void *); typedef xfs_fsize_t (*xfs_iodone_t)(struct vfs *); typedef struct xfs_ioops { xfs_ioinit_t xfs_ioinit; xfs_bmapi_t xfs_bmapi_func; xfs_bmap_eof_t xfs_bmap_eof_func; xfs_iomap_write_direct_t xfs_iomap_write_direct; xfs_iomap_write_delay_t xfs_iomap_write_delay; xfs_iomap_write_allocate_t xfs_iomap_write_allocate; xfs_iomap_write_unwritten_t xfs_iomap_write_unwritten; xfs_lock_t xfs_ilock; xfs_lck_map_shared_t xfs_lck_map_shared; xfs_lock_demote_t xfs_ilock_demote; xfs_lock_nowait_t xfs_ilock_nowait; xfs_unlk_t xfs_unlock; xfs_size_t xfs_size_func; xfs_iodone_t xfs_iodone; } xfs_ioops_t; #define XFS_IOINIT(vfsp, args, flags) \ (*(mp)->m_io_ops.xfs_ioinit)(vfsp, args, flags) #define XFS_BMAPI(mp, trans,io,bno,len,f,first,tot,mval,nmap,flist) \ (*(mp)->m_io_ops.xfs_bmapi_func) \ (trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist) #define XFS_BMAP_EOF(mp, io, endoff, whichfork, eof) \ (*(mp)->m_io_ops.xfs_bmap_eof_func) \ ((io)->io_obj, endoff, whichfork, eof) #define XFS_IOMAP_WRITE_DIRECT(mp, io, offset, count, flags, mval, nmap, found)\ (*(mp)->m_io_ops.xfs_iomap_write_direct) \ ((io)->io_obj, offset, count, flags, mval, nmap, found) #define XFS_IOMAP_WRITE_DELAY(mp, io, offset, count, flags, mval, nmap) \ (*(mp)->m_io_ops.xfs_iomap_write_delay) \ ((io)->io_obj, offset, count, flags, mval, nmap) #define XFS_IOMAP_WRITE_ALLOCATE(mp, io, offset, count, mval, nmap) \ (*(mp)->m_io_ops.xfs_iomap_write_allocate) \ ((io)->io_obj, offset, count, mval, nmap) #define XFS_IOMAP_WRITE_UNWRITTEN(mp, io, offset, count) \ (*(mp)->m_io_ops.xfs_iomap_write_unwritten) \ ((io)->io_obj, offset, count) #define XFS_LCK_MAP_SHARED(mp, io) \ (*(mp)->m_io_ops.xfs_lck_map_shared)((io)->io_obj) #define XFS_ILOCK(mp, io, mode) \ (*(mp)->m_io_ops.xfs_ilock)((io)->io_obj, mode) #define XFS_ILOCK_NOWAIT(mp, io, mode) \ (*(mp)->m_io_ops.xfs_ilock_nowait)((io)->io_obj, mode) #define XFS_IUNLOCK(mp, io, mode) \ (*(mp)->m_io_ops.xfs_unlock)((io)->io_obj, mode) #define XFS_ILOCK_DEMOTE(mp, io, mode) \ (*(mp)->m_io_ops.xfs_ilock_demote)((io)->io_obj, mode) #define XFS_SIZE(mp, io) \ (*(mp)->m_io_ops.xfs_size_func)((io)->io_obj) #define XFS_IODONE(vfsp) \ (*(mp)->m_io_ops.xfs_iodone)(vfsp) typedef struct xfs_mount { bhv_desc_t m_bhv; /* vfs xfs behavior */ xfs_tid_t m_tid; /* next unused tid for fs */ AIL_LOCK_T m_ail_lock; /* fs AIL mutex */ xfs_ail_entry_t m_ail; /* fs active log item list */ uint m_ail_gen; /* fs AIL generation count */ xfs_sb_t m_sb; /* copy of fs superblock */ lock_t m_sb_lock; /* sb counter mutex */ struct xfs_buf *m_sb_bp; /* buffer for superblock */ char *m_fsname; /* filesystem name */ int m_fsname_len; /* strlen of fs name */ char *m_rtname; /* realtime device name */ char *m_logname; /* external log device name */ int m_bsize; /* fs logical block size */ xfs_agnumber_t m_agfrotor; /* last ag where space found */ xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */ lock_t m_agirotor_lock;/* .. and lock protecting it */ xfs_agnumber_t m_maxagi; /* highest inode alloc group */ uint m_ihsize; /* size of next field */ struct xfs_ihash *m_ihash; /* fs private inode hash table*/ struct xfs_inode *m_inodes; /* active inode list */ struct list_head m_del_inodes; /* inodes to reclaim */ mutex_t m_ilock; /* inode list mutex */ uint m_ireclaims; /* count of calls to reclaim*/ uint m_readio_log; /* min read size log bytes */ uint m_readio_blocks; /* min read size blocks */ uint m_writeio_log; /* min write size log bytes */ uint m_writeio_blocks; /* min write size blocks */ struct log *m_log; /* log specific stuff */ int m_logbufs; /* number of log buffers */ int m_logbsize; /* size of each log buffer */ uint m_rsumlevels; /* rt summary levels */ uint m_rsumsize; /* size of rt summary, bytes */ struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ struct xfs_inode *m_rsumip; /* pointer to summary inode */ struct xfs_inode *m_rootip; /* pointer to root directory */ struct xfs_quotainfo *m_quotainfo; /* disk quota information */ xfs_buftarg_t *m_ddev_targp; /* saves taking the address */ xfs_buftarg_t *m_logdev_targp;/* ptr to log device */ xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */ #define m_dev m_ddev_targp->pbr_dev __uint8_t m_dircook_elog; /* log d-cookie entry bits */ __uint8_t m_blkbit_log; /* blocklog + NBBY */ __uint8_t m_blkbb_log; /* blocklog - BBSHIFT */ __uint8_t m_agno_log; /* log #ag's */ __uint8_t m_agino_log; /* #bits for agino in inum */ __uint8_t m_nreadaheads; /* #readahead buffers */ __uint16_t m_inode_cluster_size;/* min inode buf size */ uint m_blockmask; /* sb_blocksize-1 */ uint m_blockwsize; /* sb_blocksize in words */ uint m_blockwmask; /* blockwsize-1 */ uint m_alloc_mxr[2]; /* XFS_ALLOC_BLOCK_MAXRECS */ uint m_alloc_mnr[2]; /* XFS_ALLOC_BLOCK_MINRECS */ uint m_bmap_dmxr[2]; /* XFS_BMAP_BLOCK_DMAXRECS */ uint m_bmap_dmnr[2]; /* XFS_BMAP_BLOCK_DMINRECS */ uint m_inobt_mxr[2]; /* XFS_INOBT_BLOCK_MAXRECS */ uint m_inobt_mnr[2]; /* XFS_INOBT_BLOCK_MINRECS */ uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */ uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */ uint m_in_maxlevels; /* XFS_IN_MAXLEVELS */ struct xfs_perag *m_perag; /* per-ag accounting info */ struct rw_semaphore m_peraglock; /* lock for m_perag (pointer) */ sema_t m_growlock; /* growfs mutex */ int m_fixedfsid[2]; /* unchanged for life of FS */ uint m_dmevmask; /* DMI events for this FS */ __uint64_t m_flags; /* global mount flags */ uint m_attroffset; /* inode attribute offset */ uint m_dir_node_ents; /* #entries in a dir danode */ uint m_attr_node_ents; /* #entries in attr danode */ int m_ialloc_inos; /* inodes in inode allocation */ int m_ialloc_blks; /* blocks in inode allocation */ int m_litino; /* size of inode union area */ int m_inoalign_mask;/* mask sb_inoalignmt if used */ uint m_qflags; /* quota status flags */ xfs_trans_reservations_t m_reservations;/* precomputed res values */ __uint64_t m_maxicount; /* maximum inode count */ __uint64_t m_maxioffset; /* maximum inode offset */ __uint64_t m_resblks; /* total reserved blocks */ __uint64_t m_resblks_avail;/* available reserved blocks */ #if XFS_BIG_INUMS xfs_ino_t m_inoadd; /* add value for ino64_offset */ #endif int m_dalign; /* stripe unit */ int m_swidth; /* stripe width */ int m_sinoalign; /* stripe unit inode alignmnt */ int m_attr_magicpct;/* 37% of the blocksize */ int m_dir_magicpct; /* 37% of the dir blocksize */ __uint8_t m_mk_sharedro; /* mark shared ro on unmount */ __uint8_t m_inode_quiesce;/* call quiesce on new inodes. field governed by m_ilock */ __uint8_t m_sectbb_log; /* sectlog - BBSHIFT */ __uint8_t m_dirversion; /* 1 or 2 */ xfs_dirops_t m_dirops; /* table of dir funcs */ int m_dirblksize; /* directory block sz--bytes */ int m_dirblkfsbs; /* directory block sz--fsbs */ xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */ xfs_dablk_t m_dirleafblk; /* blockno of dir non-data v2 */ xfs_dablk_t m_dirfreeblk; /* blockno of dirfreeindex v2 */ uint m_chsize; /* size of next field */ struct xfs_chash *m_chash; /* fs private inode per-cluster * hash table */ struct xfs_dmops m_dm_ops; /* vector of DMI ops */ struct xfs_qmops m_qm_ops; /* vector of XQM ops */ struct xfs_ioops m_io_ops; /* vector of I/O ops */ atomic_t m_active_trans; /* number trans frozen */ } xfs_mount_t; /* * Flags for m_flags. */ #define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops must be synchronous except for space allocations */ #define XFS_MOUNT_INO64 (1ULL << 1) /* (1ULL << 2) -- currently unused */ /* (1ULL << 3) -- currently unused */ #define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4) /* atomic stop of all filesystem operations, typically for disk errors in metadata */ #define XFS_MOUNT_NOATIME (1ULL << 5) /* don't modify inode access times on reads */ #define XFS_MOUNT_RETERR (1ULL << 6) /* return alignment errors to user */ #define XFS_MOUNT_NOALIGN (1ULL << 7) /* turn off stripe alignment allocations */ #define XFS_MOUNT_COMPAT_ATTR (1ULL << 8) /* do not use attr2 format */ /* (1ULL << 9) -- currently unused */ #define XFS_MOUNT_NORECOVERY (1ULL << 10) /* no recovery - dirty fs */ #define XFS_MOUNT_SHARED (1ULL << 11) /* shared mount */ #define XFS_MOUNT_DFLT_IOSIZE (1ULL << 12) /* set default i/o size */ #define XFS_MOUNT_OSYNCISOSYNC (1ULL << 13) /* o_sync is REALLY o_sync */ /* osyncisdsync is now default*/ #define XFS_MOUNT_32BITINODES (1ULL << 14) /* do not create inodes above * 32 bits in size */ /* (1ULL << 15) -- currently unused */ #define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */ #define XFS_MOUNT_BARRIER (1ULL << 17) #define XFS_MOUNT_IDELETE (1ULL << 18) /* delete empty inode clusters*/ #define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width * allocation */ #define XFS_MOUNT_IHASHSIZE (1ULL << 20) /* inode hash table size */ #define XFS_MOUNT_DIRSYNC (1ULL << 21) /* synchronous directory ops */ #define XFS_MOUNT_COMPAT_IOSIZE (1ULL << 22) /* don't report large preferred * I/O size in stat() */ /* * Default minimum read and write sizes. */ #define XFS_READIO_LOG_LARGE 16 #define XFS_WRITEIO_LOG_LARGE 16 /* * Max and min values for mount-option defined I/O * preallocation sizes. */ #define XFS_MAX_IO_LOG 30 /* 1G */ #define XFS_MIN_IO_LOG PAGE_SHIFT /* * Synchronous read and write sizes. This should be * better for NFSv2 wsync filesystems. */ #define XFS_WSYNC_READIO_LOG 15 /* 32K */ #define XFS_WSYNC_WRITEIO_LOG 14 /* 16K */ /* * Allow large block sizes to be reported to userspace programs if the * "largeio" mount option is used. * * If compatibility mode is specified, simply return the basic unit of caching * so that we don't get inefficient read/modify/write I/O from user apps. * Otherwise.... * * If the underlying volume is a stripe, then return the stripe width in bytes * as the recommended I/O size. It is not a stripe and we've set a default * buffered I/O size, return that, otherwise return the compat default. */ static inline unsigned long xfs_preferred_iosize(xfs_mount_t *mp) { if (mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE) return PAGE_CACHE_SIZE; return (mp->m_swidth ? (mp->m_swidth << mp->m_sb.sb_blocklog) : ((mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) ? (1 << (int)MAX(mp->m_readio_log, mp->m_writeio_log)) : PAGE_CACHE_SIZE)); } #define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset) #define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN) #define xfs_force_shutdown(m,f) \ VFS_FORCE_SHUTDOWN((XFS_MTOVFS(m)), f, __FILE__, __LINE__) /* * Flags sent to xfs_force_shutdown. */ #define XFS_METADATA_IO_ERROR 0x1 #define XFS_LOG_IO_ERROR 0x2 #define XFS_FORCE_UMOUNT 0x4 #define XFS_CORRUPT_INCORE 0x8 /* Corrupt in-memory data structures */ #define XFS_SHUTDOWN_REMOTE_REQ 0x10 /* Shutdown came from remote cell */ /* * xflags for xfs_syncsub */ #define XFS_XSYNC_RELOC 0x01 /* * Flags for xfs_mountfs */ #define XFS_MFSI_SECOND 0x01 /* Secondary mount -- skip stuff */ #define XFS_MFSI_CLIENT 0x02 /* Is a client -- skip lots of stuff */ #define XFS_MFSI_NOUNLINK 0x08 /* Skip unlinked inode processing in */ /* log recovery */ #define XFS_MFSI_NO_QUOTACHECK 0x10 /* Skip quotacheck processing */ /* * Macros for getting from mount to vfs and back. */ #define XFS_MTOVFS(mp) xfs_mtovfs(mp) static inline struct vfs *xfs_mtovfs(xfs_mount_t *mp) { return bhvtovfs(&mp->m_bhv); } #define XFS_BHVTOM(bdp) xfs_bhvtom(bdp) static inline xfs_mount_t *xfs_bhvtom(bhv_desc_t *bdp) { return (xfs_mount_t *)BHV_PDATA(bdp); } #define XFS_VFSTOM(vfs) xfs_vfstom(vfs) static inline xfs_mount_t *xfs_vfstom(vfs_t *vfs) { return XFS_BHVTOM(bhv_lookup(VFS_BHVHEAD(vfs), &xfs_vfsops)); } #define XFS_DADDR_TO_AGNO(mp,d) xfs_daddr_to_agno(mp,d) static inline xfs_agnumber_t xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d) { xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); do_div(ld, mp->m_sb.sb_agblocks); return (xfs_agnumber_t) ld; } #define XFS_DADDR_TO_AGBNO(mp,d) xfs_daddr_to_agbno(mp,d) static inline xfs_agblock_t xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d) { xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks); } /* * This structure is for use by the xfs_mod_incore_sb_batch() routine. */ typedef struct xfs_mod_sb { xfs_sb_field_t msb_field; /* Field to modify, see below */ int msb_delta; /* Change to make to specified field */ } xfs_mod_sb_t; #define XFS_MOUNT_ILOCK(mp) mutex_lock(&((mp)->m_ilock), PINOD) #define XFS_MOUNT_IUNLOCK(mp) mutex_unlock(&((mp)->m_ilock)) #define XFS_SB_LOCK(mp) mutex_spinlock(&(mp)->m_sb_lock) #define XFS_SB_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_sb_lock,(s)) extern xfs_mount_t *xfs_mount_init(void); extern void xfs_mod_sb(xfs_trans_t *, __int64_t); extern void xfs_mount_free(xfs_mount_t *mp, int remove_bhv); extern int xfs_mountfs(struct vfs *, xfs_mount_t *mp, int); extern void xfs_mountfs_check_barriers(xfs_mount_t *mp); extern int xfs_unmountfs(xfs_mount_t *, struct cred *); extern void xfs_unmountfs_close(xfs_mount_t *, struct cred *); extern int xfs_unmountfs_writesb(xfs_mount_t *); extern int xfs_unmount_flush(xfs_mount_t *, int); extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int, int); extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, uint, int); extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); extern int xfs_readsb(xfs_mount_t *mp); extern void xfs_freesb(xfs_mount_t *); extern void xfs_do_force_shutdown(bhv_desc_t *, int, char *, int); extern int xfs_syncsub(xfs_mount_t *, int, int, int *); extern int xfs_sync_inodes(xfs_mount_t *, int, int, int *); extern xfs_agnumber_t xfs_initialize_perag(struct vfs *, xfs_mount_t *, xfs_agnumber_t); extern void xfs_xlatesb(void *, struct xfs_sb *, int, __int64_t); extern struct xfs_dmops xfs_dmcore_stub; extern struct xfs_qmops xfs_qmcore_stub; extern struct xfs_ioops xfs_iocore_xfs; extern int xfs_init(void); extern void xfs_cleanup(void); #endif /* __KERNEL__ */ #endif /* __XFS_MOUNT_H__ */