ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/fs/xfs/xfs_mount.h b/marvell/linux/fs/xfs/xfs_mount.h
new file mode 100644
index 0000000..ca7e0c6
--- /dev/null
+++ b/marvell/linux/fs/xfs/xfs_mount.h
@@ -0,0 +1,470 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ */
+#ifndef __XFS_MOUNT_H__
+#define __XFS_MOUNT_H__
+
+struct xlog;
+struct xfs_inode;
+struct xfs_mru_cache;
+struct xfs_nameops;
+struct xfs_ail;
+struct xfs_quotainfo;
+struct xfs_dir_ops;
+struct xfs_da_geometry;
+
+/* 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,
+};
+
+/*
+ * Error Configuration
+ *
+ * Error classes define the subsystem the configuration belongs to.
+ * Error numbers define the errors that are configurable.
+ */
+enum {
+ XFS_ERR_METADATA,
+ XFS_ERR_CLASS_MAX,
+};
+enum {
+ XFS_ERR_DEFAULT,
+ XFS_ERR_EIO,
+ XFS_ERR_ENOSPC,
+ XFS_ERR_ENODEV,
+ XFS_ERR_ERRNO_MAX,
+};
+
+#define XFS_ERR_RETRY_FOREVER -1
+
+/*
+ * Although retry_timeout is in jiffies which is normally an unsigned long,
+ * we limit the retry timeout to 86400 seconds, or one day. So even a
+ * signed 32-bit long is sufficient for a HZ value up to 24855. Making it
+ * signed lets us store the special "-1" value, meaning retry forever.
+ */
+struct xfs_error_cfg {
+ struct xfs_kobj kobj;
+ int max_retries;
+ long retry_timeout; /* in jiffies, -1 = infinite */
+};
+
+typedef struct xfs_mount {
+ struct super_block *m_super;
+ xfs_tid_t m_tid; /* next unused tid for fs */
+
+ /*
+ * Bitsets of per-fs metadata that have been checked and/or are sick.
+ * Callers must hold m_sb_lock to access these two fields.
+ */
+ uint8_t m_fs_checked;
+ uint8_t m_fs_sick;
+ /*
+ * Bitsets of rt metadata that have been checked and/or are sick.
+ * Callers must hold m_sb_lock to access this field.
+ */
+ uint8_t m_rt_checked;
+ uint8_t m_rt_sick;
+
+ struct xfs_ail *m_ail; /* fs active log item list */
+
+ struct xfs_sb m_sb; /* copy of fs superblock */
+ spinlock_t m_sb_lock; /* sb counter lock */
+ struct percpu_counter m_icount; /* allocated inodes counter */
+ struct percpu_counter m_ifree; /* free inodes counter */
+ struct percpu_counter m_fdblocks; /* free block counter */
+ /*
+ * Count of data device blocks reserved for delayed allocations,
+ * including indlen blocks. Does not include allocated CoW staging
+ * extents or anything related to the rt device.
+ */
+ struct percpu_counter m_delalloc_blks;
+
+ 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 */
+ spinlock_t m_agirotor_lock;/* .. and lock protecting it */
+ xfs_agnumber_t m_maxagi; /* highest inode alloc group */
+ 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 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 */
+ struct xfs_ino_geometry m_ino_geo; /* inode geometry */
+ 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 */
+ /*
+ * Optional cache of rt summary level per bitmap block with the
+ * invariant that m_rsum_cache[bbno] <= the minimum i for which
+ * rsum[i][bbno] != 0. Reads and writes are serialized by the rsumip
+ * inode lock.
+ */
+ uint8_t *m_rsum_cache;
+ 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 */
+ uint8_t m_blkbit_log; /* blocklog + NBBY */
+ uint8_t m_blkbb_log; /* blocklog - BBSHIFT */
+ uint8_t m_agno_log; /* log #ag's */
+ uint m_blockmask; /* sb_blocksize-1 */
+ uint m_blockwsize; /* sb_blocksize in words */
+ uint m_blockwmask; /* blockwsize-1 */
+ 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_rmap_mxr[2]; /* max rmap btree records */
+ uint m_rmap_mnr[2]; /* min rmap btree records */
+ uint m_refc_mxr[2]; /* max refc btree records */
+ uint m_refc_mnr[2]; /* min refc btree records */
+ uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */
+ uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */
+ uint m_rmap_maxlevels; /* max rmap btree levels */
+ uint m_refc_maxlevels; /* max refcount btree level */
+ xfs_extlen_t m_ag_prealloc_blocks; /* reserved ag blocks */
+ uint m_alloc_set_aside; /* space we can't use */
+ uint m_ag_max_usable; /* max space per AG */
+ 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 */
+ uint64_t m_flags; /* global mount flags */
+ bool m_finobt_nores; /* no per-AG finobt resv. */
+ uint m_qflags; /* quota status flags */
+ struct xfs_trans_resv m_resv; /* precomputed res values */
+ uint64_t m_resblks; /* total reserved blocks */
+ uint64_t m_resblks_avail;/* available reserved blocks */
+ uint64_t m_resblks_save; /* reserved blks @ remount,ro */
+ int m_dalign; /* stripe unit */
+ int m_swidth; /* stripe width */
+ uint8_t m_sectbb_log; /* sectlog - BBSHIFT */
+ 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 */
+ atomic_t m_active_trans; /* number trans frozen */
+ 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 */
+ struct delayed_work m_cowblocks_work; /* background cow blocks
+ trimming */
+ bool m_update_sb; /* sb needs update in mount */
+ int64_t m_low_space[XFS_LOWSP_MAX];
+ /* low free space thresholds */
+ struct xfs_kobj m_kobj;
+ struct xfs_kobj m_error_kobj;
+ struct xfs_kobj m_error_meta_kobj;
+ struct xfs_error_cfg m_error_cfg[XFS_ERR_CLASS_MAX][XFS_ERR_ERRNO_MAX];
+ struct xstats m_stats; /* per-fs stats */
+
+ /*
+ * Workqueue item so that we can coalesce multiple inode flush attempts
+ * into a single flush.
+ */
+ struct work_struct m_flush_inodes_work;
+ 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_eofblocks_workqueue;
+ struct workqueue_struct *m_sync_workqueue;
+
+ /*
+ * Generation of the filesysyem layout. This is incremented by each
+ * growfs, and used by the pNFS server to ensure the client updates
+ * its view of the block device once it gets a layout that might
+ * reference the newly added blocks. Does not need to be persistent
+ * as long as we only allow file system size increments, but if we
+ * ever support shrinks it would have to be persisted in addition
+ * to various other kinds of pain inflicted on the pNFS server.
+ */
+ uint32_t m_generation;
+
+ bool m_always_cow;
+ bool m_fail_unmount;
+#ifdef DEBUG
+ /*
+ * Frequency with which errors are injected. Replaces xfs_etest; the
+ * value stored in here is the inverse of the frequency with which the
+ * error triggers. 1 = always, 2 = half the time, etc.
+ */
+ unsigned int *m_errortag;
+ struct xfs_kobj m_errortag_kobj;
+#endif
+} xfs_mount_t;
+
+#define M_IGEO(mp) (&(mp)->m_ino_geo)
+
+/*
+ * Flags for m_flags.
+ */
+#define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops
+ must be synchronous except
+ for space allocations */
+#define XFS_MOUNT_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_DFLT_IOSIZE (1ULL << 12) /* set default i/o 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_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 */
+
+#define XFS_MOUNT_DAX (1ULL << 62) /* TEST ONLY! */
+
+
+/*
+ * Default minimum read and write sizes.
+ */
+#define XFS_READIO_LOG_LARGE 16
+#define XFS_WRITEIO_LOG_LARGE 16
+
+/*
+ * Max and min values for mount-option defined I/O
+ * preallocation sizes.
+ */
+#define XFS_MAX_IO_LOG 30 /* 1G */
+#define XFS_MIN_IO_LOG PAGE_SHIFT
+
+/*
+ * Synchronous read and write sizes. This should be
+ * better for NFSv2 wsync filesystems.
+ */
+#define XFS_WSYNC_READIO_LOG 15 /* 32k */
+#define XFS_WSYNC_WRITEIO_LOG 14 /* 16k */
+
+/*
+ * Allow large block sizes to be reported to userspace programs if the
+ * "largeio" mount option is used.
+ *
+ * If compatibility mode is specified, simply return the basic unit of caching
+ * so that we don't get inefficient read/modify/write I/O from user apps.
+ * Otherwise....
+ *
+ * If the underlying volume is a stripe, then return the stripe width in bytes
+ * as the recommended I/O size. It is not a stripe and we've set a default
+ * buffered I/O size, return that, otherwise return the compat default.
+ */
+static inline unsigned long
+xfs_preferred_iosize(xfs_mount_t *mp)
+{
+ if (mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE)
+ return PAGE_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_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) \
+ 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_QUIET 0x40 /* Be silent if mount errors found */
+
+static inline xfs_agnumber_t
+xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d)
+{
+ xfs_rfsblock_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_rfsblock_t ld = XFS_BB_TO_FSBT(mp, d);
+ return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks);
+}
+
+/* per-AG block reservation data structures*/
+struct xfs_ag_resv {
+ /* number of blocks originally reserved here */
+ xfs_extlen_t ar_orig_reserved;
+ /* number of blocks reserved here */
+ xfs_extlen_t ar_reserved;
+ /* number of blocks originally asked for */
+ xfs_extlen_t ar_asked;
+};
+
+/*
+ * Per-ag incore structure, copies of information in agf and agi, to improve the
+ * performance of allocation group selection.
+ */
+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 */
+ bool pagf_agflreset; /* agfl requires reset before use */
+ 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;
+
+ /*
+ * Bitsets of per-ag metadata that have been checked and/or are sick.
+ * Callers should hold pag_state_lock before accessing this field.
+ */
+ uint16_t pag_checked;
+ uint16_t pag_sick;
+ spinlock_t pag_state_lock;
+
+ spinlock_t pagb_lock; /* lock for pagb_tree */
+ struct rb_root pagb_tree; /* ordered tree of busy extents */
+ unsigned int pagb_gen; /* generation count for pagb_tree */
+ wait_queue_head_t pagb_wait; /* woken when pagb_gen changes */
+
+ 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_hash */
+ struct rhashtable pag_buf_hash;
+
+ /* for rcu-safe freeing */
+ struct rcu_head rcu_head;
+ int pagb_count; /* pagb slots in use */
+
+ /* Blocks reserved for all kinds of metadata. */
+ struct xfs_ag_resv pag_meta_resv;
+ /* Blocks reserved for the reverse mapping btree. */
+ struct xfs_ag_resv pag_rmapbt_resv;
+
+ /* reference count */
+ uint8_t pagf_refcount_level;
+
+ /*
+ * Unlinked inode information. This incore information reflects
+ * data stored in the AGI, so callers must hold the AGI buffer lock
+ * or have some other means to control concurrency.
+ */
+ struct rhashtable pagi_unlinked_hash;
+} xfs_perag_t;
+
+static inline struct xfs_ag_resv *
+xfs_perag_resv(
+ struct xfs_perag *pag,
+ enum xfs_ag_resv_type type)
+{
+ switch (type) {
+ case XFS_AG_RESV_METADATA:
+ return &pag->pag_meta_resv;
+ case XFS_AG_RESV_RMAPBT:
+ return &pag->pag_rmapbt_resv;
+ default:
+ return NULL;
+ }
+}
+
+int xfs_buf_hash_init(xfs_perag_t *pag);
+void xfs_buf_hash_destroy(xfs_perag_t *pag);
+
+extern void xfs_uuid_table_free(void);
+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_icount(struct xfs_mount *mp, int64_t delta);
+extern int xfs_mod_ifree(struct xfs_mount *mp, int64_t delta);
+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);
+
+extern struct xfs_buf *xfs_getsb(xfs_mount_t *);
+extern int xfs_readsb(xfs_mount_t *, int);
+extern void xfs_freesb(xfs_mount_t *);
+extern bool xfs_fs_writable(struct xfs_mount *mp, int level);
+extern int xfs_sb_validate_fsb_count(struct xfs_sb *, uint64_t);
+
+extern int xfs_dev_is_read_only(struct xfs_mount *, char *);
+
+extern void xfs_set_low_space_thresholds(struct xfs_mount *);
+
+int xfs_zero_extent(struct xfs_inode *ip, xfs_fsblock_t start_fsb,
+ xfs_off_t count_fsb);
+
+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);
+void xfs_mod_delalloc(struct xfs_mount *mp, int64_t delta);
+
+#endif /* __XFS_MOUNT_H__ */