patch-2.4.25 linux-2.4.25/fs/xfs/xfs_mount.h

Next file: linux-2.4.25/fs/xfs/xfs_qmops.c
Previous file: linux-2.4.25/fs/xfs/xfs_mount.c
Back to the patch index
Back to the overall index

diff -urN linux-2.4.24/fs/xfs/xfs_mount.h linux-2.4.25/fs/xfs/xfs_mount.h
@@ -0,0 +1,583 @@
+/*
+ * Copyright (c) 2000-2003 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 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,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);
+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) \
+	(*(mp)->m_qm_ops.xfs_qmmount)(mp, mnt, fl)
+#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 */
+	int			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 */
+	int			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 */
+	lock_t			m_freeze_lock;	/* Lock for m_frozen */
+	uint			m_frozen;	/* FS frozen for shutdown or
+						 * snapshot */
+	sv_t			m_wait_unfreeze;/* waiting to unfreeze */
+	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*/
+
+/*
+ * Default minimum read and write sizes.
+ */
+#define XFS_READIO_LOG_LARGE	16
+#define XFS_WRITEIO_LOG_LARGE	16
+/*
+ * Default allocation size
+ */
+#define XFS_WRITE_IO_LOG	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 */
+
+/*
+ * 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_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 void	xfs_initialize_perag(xfs_mount_t *, int);
+extern void	xfs_xlatesb(void *, struct xfs_sb *, int, xfs_arch_t,
+			__int64_t);
+
+/*
+ * Flags for freeze operations.
+ */
+#define XFS_FREEZE_WRITE	1
+#define XFS_FREEZE_TRANS	2
+
+extern void	xfs_start_freeze(xfs_mount_t *, int);
+extern void	xfs_finish_freeze(xfs_mount_t *);
+extern void	xfs_check_frozen(xfs_mount_t *, bhv_desc_t *, int);
+
+extern struct vfsops xfs_vfsops;
+extern struct vnodeops xfs_vnodeops;
+
+extern struct xfs_dmops xfs_dmcore_xfs;
+extern struct xfs_qmops xfs_qmcore_xfs;
+extern struct xfs_ioops xfs_iocore_xfs;
+
+extern int	xfs_init(void);
+extern void	xfs_cleanup(void);
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_MOUNT_H__ */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)