Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 573 insertions, 0 deletions

diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
new file mode 100644
index 000000000000..5fc6201dd8e2
--- /dev/null
+++ b/fs/xfs/xfs_mount.h
@@ -0,0 +1,573 @@
+/*
+ * 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 *, 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, mval, nmap) \
+        (*(mp)->m_io_ops.xfs_iomap_write_allocate) \
+                ((io)->io_obj, 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 UIO and mount-option defined I/O sizes;
+ * min value can't be less than a page.  Currently unused.
+ */
+#define XFS_MAX_IO_LOG          16      /* 64K */
+#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__ */