diff options
Diffstat (limited to 'fs/xfs/xfs_mount.h')
| -rw-r--r-- | fs/xfs/xfs_mount.h | 430 |
1 files changed, 137 insertions, 293 deletions
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 1d8a4728d84..7295a0b7c34 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -18,175 +18,16 @@ #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 xfs_mount_args; +struct xlog; struct xfs_inode; -struct xfs_bmbt_irec; -struct xfs_bmap_free; -struct xfs_extdelta; -struct xfs_swapext; struct xfs_mru_cache; - -/* - * Prototypes and functions for the Data Migration subsystem. - */ - -typedef int (*xfs_send_data_t)(int, bhv_vnode_t *, - xfs_off_t, size_t, int, bhv_vrwlock_t *); -typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); -typedef int (*xfs_send_destroy_t)(bhv_vnode_t *, dm_right_t); -typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct xfs_mount *, - bhv_vnode_t *, - dm_right_t, bhv_vnode_t *, dm_right_t, - char *, char *, mode_t, int, int); -typedef int (*xfs_send_mount_t)(struct xfs_mount *, dm_right_t, - char *, char *); -typedef void (*xfs_send_unmount_t)(struct xfs_mount *, bhv_vnode_t *, - 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_mount_t xfs_send_mount; - 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,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ - (*(mp)->m_dm_ops->xfs_send_namesp)(DM_EVENT_PREUNMOUNT,mp,b1,r1,b2,r2,n1,n2,mode,rval,fl) -#define XFS_SEND_MOUNT(mp,right,path,name) \ - (*(mp)->m_dm_ops->xfs_send_mount)(mp,right,path,name) -#define XFS_SEND_UNMOUNT(mp, vp,right,mode,rval,fl) \ - (*(mp)->m_dm_ops->xfs_send_unmount)(mp,vp,right,mode,rval,fl) - - -/* - * Prototypes and functions for the Quota Management subsystem. - */ - -struct xfs_dquot; -struct xfs_dqtrxops; +struct xfs_nameops; +struct xfs_ail; 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 void (*xfs_dqstatvfs_t)(struct xfs_inode *, bhv_statvfs_t *); -typedef int (*xfs_dqsync_t)(struct xfs_mount *, int flags); -typedef int (*xfs_quotactl_t)(struct xfs_mount *, int, int, xfs_caddr_t); - -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; - xfs_dqstatvfs_t xfs_dqstatvfs; - xfs_dqsync_t xfs_dqsync; - xfs_quotactl_t xfs_quotactl; - 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) -#define XFS_QM_DQSTATVFS(ip, statp) \ - (*(ip)->i_mount->m_qm_ops->xfs_dqstatvfs)(ip, statp) -#define XFS_QM_DQSYNC(mp, flags) \ - (*(mp)->m_qm_ops->xfs_dqsync)(mp, flags) -#define XFS_QM_QUOTACTL(mp, cmd, id, addr) \ - (*(mp)->m_qm_ops->xfs_quotactl)(mp, cmd, id, addr) +struct xfs_dir_ops; +struct xfs_da_geometry; #ifdef HAVE_PERCPU_SB @@ -206,31 +47,40 @@ typedef struct xfs_icsb_cnts { #define XFS_ICSB_FLAG_LOCK (1 << 0) /* counter lock bit */ -#define XFS_ICSB_SB_LOCKED (1 << 0) /* sb already locked */ #define XFS_ICSB_LAZY_COUNT (1 << 1) /* accuracy not needed */ extern int xfs_icsb_init_counters(struct xfs_mount *); extern void xfs_icsb_reinit_counters(struct xfs_mount *); -extern void xfs_icsb_sync_counters_flags(struct xfs_mount *, int); +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_reinit_counters(mp) do { } while (0) -#define xfs_icsb_sync_counters_flags(mp, flags) do { } while (0) +#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 -typedef struct xfs_ail { - xfs_ail_entry_t xa_ail; - uint xa_gen; - struct task_struct *xa_task; - xfs_lsn_t xa_target; -} xfs_ail_t; +/* 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 { struct super_block *m_super; xfs_tid_t m_tid; /* next unused tid for fs */ - spinlock_t m_ail_lock; /* fs AIL mutex */ - xfs_ail_t m_ail; /* fs active log item list */ + struct xfs_ail *m_ail; /* fs active log item list */ xfs_sb_t m_sb; /* copy of fs superblock */ spinlock_t m_sb_lock; /* sb counter lock */ struct xfs_buf *m_sb_bp; /* buffer for superblock */ @@ -243,15 +93,13 @@ typedef struct xfs_mount { xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */ spinlock_t m_agirotor_lock;/* .. and lock protecting it */ xfs_agnumber_t m_maxagi; /* highest inode alloc group */ - 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 */ @@ -263,79 +111,68 @@ 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 */ - __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 */ - __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) */ + 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 */ __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 */ + 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 alignment */ - 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 */ - 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 */ atomic_t m_active_trans; /* number trans frozen */ #ifdef HAVE_PERCPU_SB - xfs_icsb_cnts_t *m_sb_cnts; /* per-cpu superblock counters */ + 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 task_struct *m_sync_task; /* generalised sync thread */ - bhv_vfs_sync_work_t m_sync_work; /* work item for VFS_SYNC */ - struct list_head m_sync_list; /* sync thread work item list */ - spinlock_t m_sync_lock; /* work item list lock */ - int m_sync_seq; /* sync thread generation no. */ - wait_queue_head_t m_wait_single_sync_task; + 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; /* @@ -344,23 +181,17 @@ typedef struct xfs_mount { #define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops must be synchronous except for space allocations */ -#define XFS_MOUNT_INO64 (1ULL << 1) -#define XFS_MOUNT_DMAPI (1ULL << 2) /* dmapi is enabled */ #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_RETERR (1ULL << 6) /* return alignment errors to - user */ +#define XFS_MOUNT_DISCARD (1ULL << 5) /* discard unused blocks */ #define XFS_MOUNT_NOALIGN (1ULL << 7) /* turn off stripe alignment allocations */ #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_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 */ #define XFS_MOUNT_SMALL_INUMS (1ULL << 15) /* users wants 32bit inodes */ @@ -373,10 +204,9 @@ typedef struct xfs_mount { #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_NO_PERCPU_SB (1ULL << 23) /* don't use per-cpu superblock - counters */ #define XFS_MOUNT_FILESTREAMS (1ULL << 24) /* enable the filestreams allocator */ +#define XFS_MOUNT_NOATTR2 (1ULL << 25) /* disable use of attr2 format */ /* @@ -396,12 +226,12 @@ 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 */ /* * Allow large block sizes to be reported to userspace programs if the - * "largeio" mount option is used. + * "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. @@ -423,8 +253,6 @@ xfs_preferred_iosize(xfs_mount_t *mp) PAGE_CACHE_SIZE)); } -#define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset) - #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) @@ -433,19 +261,18 @@ void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname, #define xfs_force_shutdown(m,f) \ xfs_do_force_shutdown(m, f, __FILE__, __LINE__) +#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 */ -/* XFS_MFSI_RRINODES */ -#define XFS_MFSI_NOUNLINK 0x08 /* Skip unlinked inode processing in */ - /* log recovery */ -#define XFS_MFSI_NO_QUOTACHECK 0x10 /* Skip quotacheck processing */ -/* XFS_MFSI_CONVERT_SUNIT */ #define XFS_MFSI_QUIET 0x40 /* Be silent if mount errors found */ -#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) { @@ -454,7 +281,6 @@ xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d) 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) { @@ -463,31 +289,16 @@ xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d) } /* - * perag get/put wrappers for eventual ref counting - */ -static inline xfs_perag_t * -xfs_get_perag(struct xfs_mount *mp, xfs_ino_t ino) -{ - return &mp->m_perag[XFS_INO_TO_AGNO(mp, ino)]; -} - -static inline void -xfs_put_perag(struct xfs_mount *mp, xfs_perag_t *pag) -{ - /* nothing to see here, move along */ -} - -/* * Per-cpu superblock locking functions */ #ifdef HAVE_PERCPU_SB -STATIC_INLINE void +static inline void xfs_icsb_lock(xfs_mount_t *mp) { mutex_lock(&mp->m_icsb_mutex); } -STATIC_INLINE void +static inline void xfs_icsb_unlock(xfs_mount_t *mp) { mutex_unlock(&mp->m_icsb_mutex); @@ -506,45 +317,78 @@ typedef struct xfs_mod_sb { int64_t msb_delta; /* Change to make to specified field */ } xfs_mod_sb_t; -#define XFS_MOUNT_ILOCK(mp) mutex_lock(&((mp)->m_ilock)) -#define XFS_MOUNT_IUNLOCK(mp) mutex_unlock(&((mp)->m_ilock)) - -extern xfs_mount_t *xfs_mount_init(void); -extern void xfs_mod_sb(xfs_trans_t *, __int64_t); -extern int xfs_log_sbcount(xfs_mount_t *, uint); -extern void xfs_mount_free(xfs_mount_t *mp); -extern int xfs_mountfs(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); +/* + * 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_unlocked(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 *, int); extern void xfs_freesb(xfs_mount_t *); extern int xfs_fs_writable(xfs_mount_t *); -extern int xfs_syncsub(xfs_mount_t *, int, int *); -extern int xfs_sync_inodes(xfs_mount_t *, int, int *); -extern xfs_agnumber_t xfs_initialize_perag(xfs_mount_t *, xfs_agnumber_t); -extern void xfs_sb_from_disk(struct xfs_sb *, struct xfs_dsb *); -extern void xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t); extern int xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_t); -extern int xfs_dmops_get(struct xfs_mount *, struct xfs_mount_args *); -extern void xfs_dmops_put(struct xfs_mount *); -extern int xfs_qmops_get(struct xfs_mount *, struct xfs_mount_args *); -extern void xfs_qmops_put(struct xfs_mount *); - -extern struct xfs_dmops xfs_dmcore_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__ */ |