diff options
Diffstat (limited to 'fs/xfs/xfs_mount.h')
| -rw-r--r-- | fs/xfs/xfs_mount.h | 694 |
1 files changed, 258 insertions, 436 deletions
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 5affba38a57..7295a0b7c34 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -1,313 +1,105 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved. + * 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 + * 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. + * 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. * - * 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/ + * 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__ +#ifdef __KERNEL__ -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 xlog; 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) +struct xfs_mru_cache; +struct xfs_nameops; +struct xfs_ail; +struct xfs_quotainfo; +struct xfs_dir_ops; +struct xfs_da_geometry; +#ifdef HAVE_PERCPU_SB /* - * Prototypes and functions for the Data Migration subsystem. + * Valid per-cpu incore superblock counters. Note that if you add new counters, + * you may need to define new counter disabled bit field descriptors as there + * are more possible fields in the superblock that can fit in a bitfield on a + * 32 bit platform. The XFS_SBS_* values for the current current counters just + * fit. */ +typedef struct xfs_icsb_cnts { + uint64_t icsb_fdblocks; + uint64_t icsb_ifree; + uint64_t icsb_icount; + unsigned long icsb_flags; +} xfs_icsb_cnts_t; -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) +#define XFS_ICSB_FLAG_LOCK (1 << 0) /* counter lock bit */ +#define XFS_ICSB_LAZY_COUNT (1 << 1) /* accuracy not needed */ -/* - * 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) +extern int xfs_icsb_init_counters(struct xfs_mount *); +extern void xfs_icsb_reinit_counters(struct xfs_mount *); +extern void xfs_icsb_destroy_counters(struct xfs_mount *); +extern void xfs_icsb_sync_counters(struct xfs_mount *, int); +extern void xfs_icsb_sync_counters_locked(struct xfs_mount *, int); +extern int xfs_icsb_modify_counters(struct xfs_mount *, xfs_sb_field_t, + int64_t, int); +#else +#define xfs_icsb_init_counters(mp) (0) +#define xfs_icsb_destroy_counters(mp) do { } while (0) +#define xfs_icsb_reinit_counters(mp) do { } while (0) +#define xfs_icsb_sync_counters(mp, flags) do { } while (0) +#define xfs_icsb_sync_counters_locked(mp, flags) do { } while (0) +#define xfs_icsb_modify_counters(mp, field, delta, rsvd) \ + xfs_mod_incore_sb(mp, field, delta, rsvd) +#endif -/* - * 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) - +/* dynamic preallocation free space thresholds, 5% down to 1% */ +enum { + XFS_LOWSP_1_PCNT = 0, + XFS_LOWSP_2_PCNT, + XFS_LOWSP_3_PCNT, + XFS_LOWSP_4_PCNT, + XFS_LOWSP_5_PCNT, + XFS_LOWSP_MAX, +}; typedef struct xfs_mount { - bhv_desc_t m_bhv; /* vfs xfs behavior */ + struct super_block *m_super; 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 */ + struct xfs_ail *m_ail; /* fs active log item list */ xfs_sb_t m_sb; /* copy of fs superblock */ - lock_t m_sb_lock; /* sb counter mutex */ + spinlock_t m_sb_lock; /* sb counter lock */ 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 */ + spinlock_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 */ + struct xfs_da_geometry *m_dir_geo; /* directory block geometry */ + struct xfs_da_geometry *m_attr_geo; /* attribute block geometry */ + struct xlog *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 */ @@ -319,108 +111,103 @@ typedef struct xfs_mount { 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_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_alloc_mxr[2]; /* max alloc btree records */ + uint m_alloc_mnr[2]; /* min alloc btree records */ + uint m_bmap_dmxr[2]; /* max bmap btree records */ + uint m_bmap_dmnr[2]; /* min bmap btree records */ + uint m_inobt_mxr[2]; /* max inobt btree records */ + uint m_inobt_mnr[2]; /* min inobt btree records */ 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 */ + uint m_in_maxlevels; /* max inobt btree levels. */ + struct radix_tree_root m_perag_tree; /* per-ag accounting info */ + spinlock_t m_perag_lock; /* lock for m_perag_tree */ + struct mutex 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 */ + __uint64_t m_flags; /* global mount flags */ 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 */ + struct xfs_trans_resv m_resv; /* 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 + __uint64_t m_resblks_save; /* reserved blks @ remount,ro */ 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 */ + int m_sinoalign; /* stripe unit inode alignment */ __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 */ + const struct xfs_nameops *m_dirnameops; /* vector of dir name ops */ + const struct xfs_dir_ops *m_dir_inode_ops; /* vector of dir inode ops */ + const struct xfs_dir_ops *m_nondir_inode_ops; /* !dir inode ops */ 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 */ +#ifdef HAVE_PERCPU_SB + xfs_icsb_cnts_t __percpu *m_sb_cnts; /* per-cpu superblock counters */ + unsigned long m_icsb_counters; /* disabled per-cpu counters */ + struct notifier_block m_icsb_notifier; /* hotplug cpu notifier */ + struct mutex m_icsb_mutex; /* balancer sync lock */ +#endif + struct xfs_mru_cache *m_filestream; /* per-mount filestream data */ + struct delayed_work m_reclaim_work; /* background inode reclaim */ + struct delayed_work m_eofblocks_work; /* background eof blocks + trimming */ + __int64_t m_update_flags; /* sb flags we need to update + on the next remount,rw */ + int64_t m_low_space[XFS_LOWSP_MAX]; + /* low free space thresholds */ + + struct workqueue_struct *m_data_workqueue; + struct workqueue_struct *m_unwritten_workqueue; + struct workqueue_struct *m_cil_workqueue; + struct workqueue_struct *m_reclaim_workqueue; + struct workqueue_struct *m_log_workqueue; + struct workqueue_struct *m_eofblocks_workqueue; } xfs_mount_t; /* * Flags for m_flags. */ -#define XFS_MOUNT_WSYNC 0x00000001 /* for nfs - all metadata ops +#define XFS_MOUNT_WSYNC (1ULL << 0) /* 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 +#define XFS_MOUNT_WAS_CLEAN (1ULL << 3) +#define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4) /* 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 +#define XFS_MOUNT_DISCARD (1ULL << 5) /* discard unused blocks */ +#define XFS_MOUNT_NOALIGN (1ULL << 7) /* 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 +#define XFS_MOUNT_ATTR2 (1ULL << 8) /* allow use of attr2 format */ +#define XFS_MOUNT_GRPID (1ULL << 9) /* group-ID assigned from directory */ +#define XFS_MOUNT_NORECOVERY (1ULL << 10) /* no recovery - dirty fs */ +#define XFS_MOUNT_DFLT_IOSIZE (1ULL << 12) /* set default i/o size */ +#define XFS_MOUNT_32BITINODES (1ULL << 14) /* 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 +#define XFS_MOUNT_SMALL_INUMS (1ULL << 15) /* users wants 32bit inodes */ +#define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */ +#define XFS_MOUNT_BARRIER (1ULL << 17) +#define XFS_MOUNT_IKEEP (1ULL << 18) /* keep empty inode clusters*/ +#define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width * allocation */ -#define XFS_MOUNT_IHASHSIZE 0x00100000 /* inode hash table size */ -#define XFS_MOUNT_DIRSYNC 0x00200000 /* synchronous directory ops */ +#define XFS_MOUNT_RDONLY (1ULL << 20) /* read-only fs */ +#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() */ +#define XFS_MOUNT_FILESTREAMS (1ULL << 24) /* enable the filestreams + allocator */ +#define XFS_MOUNT_NOATTR2 (1ULL << 25) /* disable use of attr2 format */ + /* * Default minimum read and write sizes. @@ -439,134 +226,169 @@ typedef struct xfs_mount { * 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_WSYNC_READIO_LOG 15 /* 32k */ +#define XFS_WSYNC_WRITEIO_LOG 14 /* 16k */ -#define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset) +/* + * 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_LAST_UNMOUNT_WAS_CLEAN(mp) \ + ((mp)->m_flags & XFS_MOUNT_WAS_CLEAN) #define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN) +void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname, + int lnnum); #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 */ + xfs_do_force_shutdown(m, f, __FILE__, __LINE__) -/* - * xflags for xfs_syncsub - */ -#define XFS_XSYNC_RELOC 0x01 +#define SHUTDOWN_META_IO_ERROR 0x0001 /* write attempt to metadata failed */ +#define SHUTDOWN_LOG_IO_ERROR 0x0002 /* write attempt to the log failed */ +#define SHUTDOWN_FORCE_UMOUNT 0x0004 /* shutdown from a forced unmount */ +#define SHUTDOWN_CORRUPT_INCORE 0x0008 /* corrupt in-memory data structures */ +#define SHUTDOWN_REMOTE_REQ 0x0010 /* shutdown came from remote cell */ +#define SHUTDOWN_DEVICE_REQ 0x0020 /* failed all paths to the device */ /* * 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 */ +#define XFS_MFSI_QUIET 0x40 /* Be silent if mount errors found */ -/* - * 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 +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; +} +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); +} /* - * Moved here from xfs_ag.h to avoid reordering header files + * Per-cpu superblock locking functions */ - -#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) +#ifdef HAVE_PERCPU_SB +static inline void +xfs_icsb_lock(xfs_mount_t *mp) { - d = XFS_BB_TO_FSBT(mp, d); - do_div(d, mp->m_sb.sb_agblocks); - return (xfs_agnumber_t) d; + mutex_lock(&mp->m_icsb_mutex); } -#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) +static inline void +xfs_icsb_unlock(xfs_mount_t *mp) { - d = XFS_BB_TO_FSBT(mp, d); - return (xfs_agblock_t) do_div(d, mp->m_sb.sb_agblocks); + mutex_unlock(&mp->m_icsb_mutex); } - +#else +#define xfs_icsb_lock(mp) +#define xfs_icsb_unlock(mp) #endif /* * This structure is for use by the xfs_mod_incore_sb_batch() routine. + * xfs_growfs can specify a few fields which are more than int limit */ 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 */ + int64_t 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_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); +/* + * Per-ag incore structure, copies of information in agf and agi, to improve the + * performance of allocation group selection. This is defined for the kernel + * only, and hence is defined here instead of in xfs_ag.h. You need the struct + * xfs_mount to be defined to look up a xfs_perag anyway (via mp->m_perag_tree), + * so this doesn't introduce any strange header file dependencies. + */ +typedef struct xfs_perag { + struct xfs_mount *pag_mount; /* owner filesystem */ + xfs_agnumber_t pag_agno; /* AG this structure belongs to */ + atomic_t pag_ref; /* perag reference count */ + char pagf_init; /* this agf's entry is initialized */ + char pagi_init; /* this agi's entry is initialized */ + char pagf_metadata; /* the agf is preferred to be metadata */ + char pagi_inodeok; /* The agi is ok for inodes */ + __uint8_t pagf_levels[XFS_BTNUM_AGF]; + /* # of levels in bno & cnt btree */ + __uint32_t pagf_flcount; /* count of blocks in freelist */ + xfs_extlen_t pagf_freeblks; /* total free blocks */ + xfs_extlen_t pagf_longest; /* longest free space */ + __uint32_t pagf_btreeblks; /* # of blocks held in AGF btrees */ + xfs_agino_t pagi_freecount; /* number of free inodes */ + xfs_agino_t pagi_count; /* number of allocated inodes */ + + /* + * Inode allocation search lookup optimisation. + * If the pagino matches, the search for new inodes + * doesn't need to search the near ones again straight away + */ + xfs_agino_t pagl_pagino; + xfs_agino_t pagl_leftrec; + xfs_agino_t pagl_rightrec; + spinlock_t pagb_lock; /* lock for pagb_tree */ + struct rb_root pagb_tree; /* ordered tree of busy extents */ + + atomic_t pagf_fstrms; /* # of filestreams active in this AG */ + + spinlock_t pag_ici_lock; /* incore inode cache lock */ + struct radix_tree_root pag_ici_root; /* incore inode cache root */ + int pag_ici_reclaimable; /* reclaimable inodes */ + struct mutex pag_ici_reclaim_lock; /* serialisation point */ + unsigned long pag_ici_reclaim_cursor; /* reclaim restart point */ + + /* buffer cache index */ + spinlock_t pag_buf_lock; /* lock for pag_buf_tree */ + struct rb_root pag_buf_tree; /* ordered tree of active buffers */ + + /* for rcu-safe freeing */ + struct rcu_head rcu_head; + int pagb_count; /* pagb slots in use */ +} xfs_perag_t; + +extern int xfs_log_sbcount(xfs_mount_t *); +extern __uint64_t xfs_default_resblks(xfs_mount_t *mp); +extern int xfs_mountfs(xfs_mount_t *mp); +extern int xfs_initialize_perag(xfs_mount_t *mp, xfs_agnumber_t agcount, + xfs_agnumber_t *maxagi); + +extern void xfs_unmountfs(xfs_mount_t *); +extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int); extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, uint, int); +extern int xfs_mount_log_sb(xfs_mount_t *, __int64_t); extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); -extern int xfs_readsb(xfs_mount_t *mp); +extern int xfs_readsb(xfs_mount_t *, int); 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 int xfs_fs_writable(xfs_mount_t *); +extern int xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_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_dev_is_read_only(struct xfs_mount *, char *); -extern int xfs_init(void); -extern void xfs_cleanup(void); +extern void xfs_set_low_space_thresholds(struct xfs_mount *); #endif /* __KERNEL__ */ |