| /* |
| * 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 version 2 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. |
| * |
| * Further, this software is distributed without any warranty that it is |
| * free of the rightful claim of any third person regarding infringement |
| * or the like. Any license provided herein, whether implied or |
| * otherwise, applies only to this software file. Patent licenses, if |
| * any, provided herein do not apply to combinations of this program with |
| * other software, or any other product whatsoever. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., 59 |
| * Temple Place - Suite 330, Boston MA 02111-1307, USA. |
| * |
| * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, |
| * Mountain View, CA 94043, or: |
| * |
| * http://www.sgi.com |
| * |
| * For further information regarding this notice, see: |
| * |
| * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ |
| */ |
| #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; |
| |
| #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, 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, fl, dq1, dq2) \ |
| (*(mp)->m_qm_ops.xfs_dqvopalloc)(mp, ip, uid, gid, 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 *, loff_t, size_t, int, |
| struct xfs_bmbt_irec *, int *, int); |
| typedef int (*xfs_iomap_write_delay_t)( |
| void *, loff_t, size_t, int, |
| struct xfs_bmbt_irec *, int *); |
| typedef int (*xfs_iomap_write_allocate_t)( |
| void *, loff_t, size_t, |
| struct xfs_bmbt_irec *, int *); |
| typedef int (*xfs_iomap_write_unwritten_t)( |
| void *, loff_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 */ |
| 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 */ |
| uint 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 0x00000001 /* for nfs - all metadata ops |
| must be synchronous except |
| for space allocations */ |
| #define XFS_MOUNT_INO64 0x00000002 |
| /* 0x00000004 -- currently unused */ |
| /* 0x00000008 -- currently unused */ |
| #define XFS_MOUNT_FS_SHUTDOWN 0x00000010 /* atomic stop of all filesystem |
| operations, typically for |
| disk errors in metadata */ |
| #define XFS_MOUNT_NOATIME 0x00000020 /* don't modify inode access |
| times on reads */ |
| #define XFS_MOUNT_RETERR 0x00000040 /* return alignment errors to |
| user */ |
| #define XFS_MOUNT_NOALIGN 0x00000080 /* turn off stripe alignment |
| allocations */ |
| /* 0x00000100 -- currently unused */ |
| /* 0x00000200 -- currently unused */ |
| #define XFS_MOUNT_NORECOVERY 0x00000400 /* no recovery - dirty fs */ |
| #define XFS_MOUNT_SHARED 0x00000800 /* shared mount */ |
| #define XFS_MOUNT_DFLT_IOSIZE 0x00001000 /* set default i/o size */ |
| #define XFS_MOUNT_OSYNCISOSYNC 0x00002000 /* o_sync is REALLY o_sync */ |
| /* osyncisdsync is now default*/ |
| #define XFS_MOUNT_32BITINODES 0x00004000 /* do not create inodes above |
| * 32 bits in size */ |
| #define XFS_MOUNT_32BITINOOPT 0x00008000 /* saved mount option state */ |
| #define XFS_MOUNT_NOUUID 0x00010000 /* ignore uuid during mount */ |
| #define XFS_MOUNT_NOLOGFLUSH 0x00020000 |
| #define XFS_MOUNT_IDELETE 0x00040000 /* delete empty inode clusters*/ |
| #define XFS_MOUNT_SWALLOC 0x00080000 /* turn on stripe width |
| * allocation */ |
| #define XFS_MOUNT_IHASHSIZE 0x00100000 /* inode hash table size */ |
| #define XFS_MOUNT_DIRSYNC 0x00200000 /* synchronous directory ops */ |
| |
| /* |
| * 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 */ |
| |
| #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. |
| */ |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MTOVFS) |
| struct vfs *xfs_mtovfs(xfs_mount_t *mp); |
| #define XFS_MTOVFS(mp) xfs_mtovfs(mp) |
| #else |
| #define XFS_MTOVFS(mp) (bhvtovfs(&(mp)->m_bhv)) |
| #endif |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BHVTOM) |
| xfs_mount_t *xfs_bhvtom(bhv_desc_t *bdp); |
| #define XFS_BHVTOM(bdp) xfs_bhvtom(bdp) |
| #else |
| #define XFS_BHVTOM(bdp) ((xfs_mount_t *)BHV_PDATA(bdp)) |
| #endif |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_VFSTOM) |
| xfs_mount_t *xfs_vfstom(vfs_t *vfs); |
| #define XFS_VFSTOM(vfs) xfs_vfstom(vfs) |
| #else |
| #define XFS_VFSTOM(vfs) \ |
| (XFS_BHVTOM(bhv_lookup(VFS_BHVHEAD(vfs), &xfs_vfsops))) |
| #endif |
| |
| |
| /* |
| * Moved here from xfs_ag.h to avoid reordering header files |
| */ |
| |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_AGNO) |
| xfs_agnumber_t xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d); |
| #define XFS_DADDR_TO_AGNO(mp,d) xfs_daddr_to_agno(mp,d) |
| #else |
| |
| static inline xfs_agnumber_t XFS_DADDR_TO_AGNO(xfs_mount_t *mp, xfs_daddr_t d) |
| { |
| d = XFS_BB_TO_FSBT(mp, d); |
| do_div(d, mp->m_sb.sb_agblocks); |
| return (xfs_agnumber_t) d; |
| } |
| |
| #endif |
| #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_AGBNO) |
| xfs_agblock_t xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d); |
| #define XFS_DADDR_TO_AGBNO(mp,d) xfs_daddr_to_agbno(mp,d) |
| #else |
| |
| static inline xfs_agblock_t XFS_DADDR_TO_AGBNO(xfs_mount_t *mp, xfs_daddr_t d) |
| { |
| d = XFS_BB_TO_FSBT(mp, d); |
| return (xfs_agblock_t) do_div(d, mp->m_sb.sb_agblocks); |
| } |
| |
| #endif |
| |
| /* |
| * 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 int xfs_unmountfs(xfs_mount_t *, struct cred *); |
| extern void xfs_unmountfs_wait(xfs_mount_t *); |
| 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 xfs_agnumber_t xfs_initialize_perag(xfs_mount_t *, xfs_agnumber_t); |
| extern void xfs_xlatesb(void *, struct xfs_sb *, int, __int64_t); |
| |
| extern struct vfsops xfs_vfsops; |
| extern struct vnodeops xfs_vnodeops; |
| |
| 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__ */ |