long retry_timeout; /* in jiffies, -1 = infinite */
};
+/*
+ * Per-cpu deferred inode inactivation GC lists.
+ */
+struct xfs_inodegc {
+ struct llist_head list;
+ struct work_struct work;
+
+ /* approximate count of inodes in the list */
+ unsigned int items;
+ unsigned int shrinker_hits;
+};
+
/*
* The struct xfsmount layout is optimised to separate read-mostly variables
* from variables that are frequently modified. We put the read-mostly variables
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 */
+ struct list_head m_mount_list; /* global mount list */
+ void __percpu *m_inodegc; /* percpu inodegc structures */
+
/*
* Optional cache of rt summary level per bitmap block with the
* invariant that m_rsum_cache[bbno] <= the minimum i for which
struct xfs_mru_cache *m_filestream; /* per-mount filestream data */
struct workqueue_struct *m_buf_workqueue;
struct workqueue_struct *m_unwritten_workqueue;
- struct workqueue_struct *m_cil_workqueue;
struct workqueue_struct *m_reclaim_workqueue;
- struct workqueue_struct *m_gc_workqueue;
struct workqueue_struct *m_sync_workqueue;
+ struct workqueue_struct *m_blockgc_wq;
+ struct workqueue_struct *m_inodegc_wq;
int m_bsize; /* fs logical block size */
uint8_t m_blkbit_log; /* blocklog + NBBY */
uint m_rsumsize; /* size of rt summary, bytes */
int m_fixedfsid[2]; /* unchanged for life of FS */
uint m_qflags; /* quota status flags */
- uint64_t m_flags; /* global mount flags */
- int64_t m_low_space[XFS_LOWSP_MAX];
+ uint64_t m_features; /* active filesystem features */
+ uint64_t m_low_space[XFS_LOWSP_MAX];
+ uint64_t m_low_rtexts[XFS_LOWSP_MAX];
struct xfs_ino_geometry m_ino_geo; /* inode geometry */
struct xfs_trans_resv m_resv; /* precomputed res values */
/* low free space thresholds */
+ unsigned long m_opstate; /* dynamic state flags */
bool m_always_cow;
bool m_fail_unmount;
bool m_finobt_nores; /* no per-AG finobt resv. */
xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */
spinlock_t m_agirotor_lock;/* .. and lock protecting it */
+ /* Memory shrinker to throttle and reprioritize inodegc */
+ struct shrinker m_inodegc_shrinker;
/*
* Workqueue item so that we can coalesce multiple inode flush attempts
* into a single flush.
#define M_IGEO(mp) (&(mp)->m_ino_geo)
/*
- * Flags for m_flags.
+ * Flags for m_features.
+ *
+ * These are all the active features in the filesystem, regardless of how
+ * they are configured.
*/
-#define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops
- must be synchronous except
- for space allocations */
-#define XFS_MOUNT_UNMOUNTING (1ULL << 1) /* filesystem is unmounting */
-#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_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_ALLOCSIZE (1ULL << 12) /* specified allocation size */
-#define XFS_MOUNT_SMALL_INUMS (1ULL << 14) /* user wants 32bit inodes */
-#define XFS_MOUNT_32BITINODES (1ULL << 15) /* inode32 allocator active */
-#define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */
-#define XFS_MOUNT_IKEEP (1ULL << 18) /* keep empty inode clusters*/
-#define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width
- * allocation */
-#define XFS_MOUNT_RDONLY (1ULL << 20) /* read-only fs */
-#define XFS_MOUNT_DIRSYNC (1ULL << 21) /* synchronous directory ops */
-#define XFS_MOUNT_LARGEIO (1ULL << 22) /* report large preferred
+#define XFS_FEAT_ATTR (1ULL << 0) /* xattrs present in fs */
+#define XFS_FEAT_NLINK (1ULL << 1) /* 32 bit link counts */
+#define XFS_FEAT_QUOTA (1ULL << 2) /* quota active */
+#define XFS_FEAT_ALIGN (1ULL << 3) /* inode alignment */
+#define XFS_FEAT_DALIGN (1ULL << 4) /* data alignment */
+#define XFS_FEAT_LOGV2 (1ULL << 5) /* version 2 logs */
+#define XFS_FEAT_SECTOR (1ULL << 6) /* sector size > 512 bytes */
+#define XFS_FEAT_EXTFLG (1ULL << 7) /* unwritten extents */
+#define XFS_FEAT_ASCIICI (1ULL << 8) /* ASCII only case-insens. */
+#define XFS_FEAT_LAZYSBCOUNT (1ULL << 9) /* Superblk counters */
+#define XFS_FEAT_ATTR2 (1ULL << 10) /* dynamic attr fork */
+#define XFS_FEAT_PARENT (1ULL << 11) /* parent pointers */
+#define XFS_FEAT_PROJID32 (1ULL << 12) /* 32 bit project id */
+#define XFS_FEAT_CRC (1ULL << 13) /* metadata CRCs */
+#define XFS_FEAT_V3INODES (1ULL << 14) /* Version 3 inodes */
+#define XFS_FEAT_PQUOTINO (1ULL << 15) /* non-shared proj/grp quotas */
+#define XFS_FEAT_FTYPE (1ULL << 16) /* inode type in dir */
+#define XFS_FEAT_FINOBT (1ULL << 17) /* free inode btree */
+#define XFS_FEAT_RMAPBT (1ULL << 18) /* reverse map btree */
+#define XFS_FEAT_REFLINK (1ULL << 19) /* reflinked files */
+#define XFS_FEAT_SPINODES (1ULL << 20) /* sparse inode chunks */
+#define XFS_FEAT_META_UUID (1ULL << 21) /* metadata UUID */
+#define XFS_FEAT_REALTIME (1ULL << 22) /* realtime device present */
+#define XFS_FEAT_INOBTCNT (1ULL << 23) /* inobt block counts */
+#define XFS_FEAT_BIGTIME (1ULL << 24) /* large timestamps */
+#define XFS_FEAT_NEEDSREPAIR (1ULL << 25) /* needs xfs_repair */
+
+/* Mount features */
+#define XFS_FEAT_NOATTR2 (1ULL << 48) /* disable attr2 creation */
+#define XFS_FEAT_NOALIGN (1ULL << 49) /* ignore alignment */
+#define XFS_FEAT_ALLOCSIZE (1ULL << 50) /* user specified allocation size */
+#define XFS_FEAT_LARGE_IOSIZE (1ULL << 51) /* 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 */
-#define XFS_MOUNT_DAX_ALWAYS (1ULL << 26)
-#define XFS_MOUNT_DAX_NEVER (1ULL << 27)
+#define XFS_FEAT_WSYNC (1ULL << 52) /* synchronous metadata ops */
+#define XFS_FEAT_DIRSYNC (1ULL << 53) /* synchronous directory ops */
+#define XFS_FEAT_DISCARD (1ULL << 54) /* discard unused blocks */
+#define XFS_FEAT_GRPID (1ULL << 55) /* group-ID assigned from directory */
+#define XFS_FEAT_SMALL_INUMS (1ULL << 56) /* user wants 32bit inodes */
+#define XFS_FEAT_IKEEP (1ULL << 57) /* keep empty inode clusters*/
+#define XFS_FEAT_SWALLOC (1ULL << 58) /* stripe width allocation */
+#define XFS_FEAT_FILESTREAMS (1ULL << 59) /* use filestreams allocator */
+#define XFS_FEAT_DAX_ALWAYS (1ULL << 60) /* DAX always enabled */
+#define XFS_FEAT_DAX_NEVER (1ULL << 61) /* DAX never enabled */
+#define XFS_FEAT_NORECOVERY (1ULL << 62) /* no recovery - dirty fs */
+#define XFS_FEAT_NOUUID (1ULL << 63) /* ignore uuid during mount */
+
+#define __XFS_HAS_FEAT(name, NAME) \
+static inline bool xfs_has_ ## name (struct xfs_mount *mp) \
+{ \
+ return mp->m_features & XFS_FEAT_ ## NAME; \
+}
+
+/* Some features can be added dynamically so they need a set wrapper, too. */
+#define __XFS_ADD_FEAT(name, NAME) \
+ __XFS_HAS_FEAT(name, NAME); \
+static inline void xfs_add_ ## name (struct xfs_mount *mp) \
+{ \
+ mp->m_features |= XFS_FEAT_ ## NAME; \
+ xfs_sb_version_add ## name(&mp->m_sb); \
+}
+
+/* Superblock features */
+__XFS_ADD_FEAT(attr, ATTR)
+__XFS_HAS_FEAT(nlink, NLINK)
+__XFS_ADD_FEAT(quota, QUOTA)
+__XFS_HAS_FEAT(align, ALIGN)
+__XFS_HAS_FEAT(dalign, DALIGN)
+__XFS_HAS_FEAT(logv2, LOGV2)
+__XFS_HAS_FEAT(sector, SECTOR)
+__XFS_HAS_FEAT(extflg, EXTFLG)
+__XFS_HAS_FEAT(asciici, ASCIICI)
+__XFS_HAS_FEAT(lazysbcount, LAZYSBCOUNT)
+__XFS_ADD_FEAT(attr2, ATTR2)
+__XFS_HAS_FEAT(parent, PARENT)
+__XFS_ADD_FEAT(projid32, PROJID32)
+__XFS_HAS_FEAT(crc, CRC)
+__XFS_HAS_FEAT(v3inodes, V3INODES)
+__XFS_HAS_FEAT(pquotino, PQUOTINO)
+__XFS_HAS_FEAT(ftype, FTYPE)
+__XFS_HAS_FEAT(finobt, FINOBT)
+__XFS_HAS_FEAT(rmapbt, RMAPBT)
+__XFS_HAS_FEAT(reflink, REFLINK)
+__XFS_HAS_FEAT(sparseinodes, SPINODES)
+__XFS_HAS_FEAT(metauuid, META_UUID)
+__XFS_HAS_FEAT(realtime, REALTIME)
+__XFS_HAS_FEAT(inobtcounts, INOBTCNT)
+__XFS_HAS_FEAT(bigtime, BIGTIME)
+__XFS_HAS_FEAT(needsrepair, NEEDSREPAIR)
+
+/*
+ * Mount features
+ *
+ * These do not change dynamically - features that can come and go, such as 32
+ * bit inodes and read-only state, are kept as operational state rather than
+ * features.
+ */
+__XFS_HAS_FEAT(noattr2, NOATTR2)
+__XFS_HAS_FEAT(noalign, NOALIGN)
+__XFS_HAS_FEAT(allocsize, ALLOCSIZE)
+__XFS_HAS_FEAT(large_iosize, LARGE_IOSIZE)
+__XFS_HAS_FEAT(wsync, WSYNC)
+__XFS_HAS_FEAT(dirsync, DIRSYNC)
+__XFS_HAS_FEAT(discard, DISCARD)
+__XFS_HAS_FEAT(grpid, GRPID)
+__XFS_HAS_FEAT(small_inums, SMALL_INUMS)
+__XFS_HAS_FEAT(ikeep, IKEEP)
+__XFS_HAS_FEAT(swalloc, SWALLOC)
+__XFS_HAS_FEAT(filestreams, FILESTREAMS)
+__XFS_HAS_FEAT(dax_always, DAX_ALWAYS)
+__XFS_HAS_FEAT(dax_never, DAX_NEVER)
+__XFS_HAS_FEAT(norecovery, NORECOVERY)
+__XFS_HAS_FEAT(nouuid, NOUUID)
+
+/*
+ * Operational mount state flags
+ *
+ * Use these with atomic bit ops only!
+ */
+#define XFS_OPSTATE_UNMOUNTING 0 /* filesystem is unmounting */
+#define XFS_OPSTATE_CLEAN 1 /* mount was clean */
+#define XFS_OPSTATE_SHUTDOWN 2 /* stop all fs operations */
+#define XFS_OPSTATE_INODE32 3 /* inode32 allocator active */
+#define XFS_OPSTATE_READONLY 4 /* read-only fs */
+
+/*
+ * If set, inactivation worker threads will be scheduled to process queued
+ * inodegc work. If not, queued inodes remain in memory waiting to be
+ * processed.
+ */
+#define XFS_OPSTATE_INODEGC_ENABLED 5
+/*
+ * If set, background speculative prealloc gc worker threads will be scheduled
+ * to process queued blockgc work. If not, inodes retain their preallocations
+ * until explicitly deleted.
+ */
+#define XFS_OPSTATE_BLOCKGC_ENABLED 6
+
+#define __XFS_IS_OPSTATE(name, NAME) \
+static inline bool xfs_is_ ## name (struct xfs_mount *mp) \
+{ \
+ return test_bit(XFS_OPSTATE_ ## NAME, &mp->m_opstate); \
+} \
+static inline bool xfs_clear_ ## name (struct xfs_mount *mp) \
+{ \
+ return test_and_clear_bit(XFS_OPSTATE_ ## NAME, &mp->m_opstate); \
+} \
+static inline bool xfs_set_ ## name (struct xfs_mount *mp) \
+{ \
+ return test_and_set_bit(XFS_OPSTATE_ ## NAME, &mp->m_opstate); \
+}
+
+__XFS_IS_OPSTATE(unmounting, UNMOUNTING)
+__XFS_IS_OPSTATE(clean, CLEAN)
+__XFS_IS_OPSTATE(shutdown, SHUTDOWN)
+__XFS_IS_OPSTATE(inode32, INODE32)
+__XFS_IS_OPSTATE(readonly, READONLY)
+__XFS_IS_OPSTATE(inodegc_enabled, INODEGC_ENABLED)
+__XFS_IS_OPSTATE(blockgc_enabled, BLOCKGC_ENABLED)
+
+#define XFS_OPSTATE_STRINGS \
+ { (1UL << XFS_OPSTATE_UNMOUNTING), "unmounting" }, \
+ { (1UL << XFS_OPSTATE_CLEAN), "clean" }, \
+ { (1UL << XFS_OPSTATE_SHUTDOWN), "shutdown" }, \
+ { (1UL << XFS_OPSTATE_INODE32), "inode32" }, \
+ { (1UL << XFS_OPSTATE_READONLY), "read_only" }, \
+ { (1UL << XFS_OPSTATE_INODEGC_ENABLED), "inodegc" }, \
+ { (1UL << XFS_OPSTATE_BLOCKGC_ENABLED), "blockgc" }
/*
* Max and min values for mount-option defined I/O
#define XFS_MAX_IO_LOG 30 /* 1G */
#define XFS_MIN_IO_LOG PAGE_SHIFT
-#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)
+#define XFS_FORCED_SHUTDOWN(mp) xfs_is_shutdown(mp)
void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname,
int lnnum);
#define xfs_force_shutdown(m,f) \
#define SHUTDOWN_FORCE_UMOUNT 0x0004 /* shutdown from a forced unmount */
#define SHUTDOWN_CORRUPT_INCORE 0x0008 /* corrupt in-memory data structures */
+#define XFS_SHUTDOWN_STRINGS \
+ { SHUTDOWN_META_IO_ERROR, "metadata_io" }, \
+ { SHUTDOWN_LOG_IO_ERROR, "log_io" }, \
+ { SHUTDOWN_FORCE_UMOUNT, "force_umount" }, \
+ { SHUTDOWN_CORRUPT_INCORE, "corruption" }
+
/*
* Flags for xfs_mountfs
*/
extern int xfs_mountfs(xfs_mount_t *mp);
extern void xfs_unmountfs(xfs_mount_t *);
+/*
+ * Deltas for the block count can vary from 1 to very large, but lock contention
+ * only occurs on frequent small block count updates such as in the delayed
+ * allocation path for buffered writes (page a time updates). Hence we set
+ * a large batch count (1024) to minimise global counter updates except when
+ * we get near to ENOSPC and we have to be very accurate with our updates.
+ */
+#define XFS_FDBLOCKS_BATCH 1024
+
extern int xfs_mod_fdblocks(struct xfs_mount *mp, int64_t delta,
bool reserved);
extern int xfs_mod_frextents(struct xfs_mount *mp, int64_t delta);
struct xfs_error_cfg * xfs_error_get_cfg(struct xfs_mount *mp,
int error_class, int error);
void xfs_force_summary_recalc(struct xfs_mount *mp);
+int xfs_add_incompat_log_feature(struct xfs_mount *mp, uint32_t feature);
+bool xfs_clear_incompat_log_features(struct xfs_mount *mp);
void xfs_mod_delalloc(struct xfs_mount *mp, int64_t delta);
#endif /* __XFS_MOUNT_H__ */
projects / linux-2.6-microblaze.git / blobdiff