Annotation of sys/xfs/xfs_fs.h, Revision 1.1
1.1 ! nbrk 1: /*
! 2: * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
! 3: * (Royal Institute of Technology, Stockholm, Sweden).
! 4: * All rights reserved.
! 5: *
! 6: * Redistribution and use in source and binary forms, with or without
! 7: * modification, are permitted provided that the following conditions
! 8: * are met:
! 9: *
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: *
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: *
! 17: * 3. Neither the name of the Institute nor the names of its contributors
! 18: * may be used to endorse or promote products derived from this software
! 19: * without specific prior written permission.
! 20: *
! 21: * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
! 22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 24: * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
! 25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 31: * SUCH DAMAGE.
! 32: */
! 33:
! 34: /* $arla: xfs_fs.h,v 1.22 2002/12/19 09:49:19 lha Exp $ */
! 35:
! 36: #ifndef _xfs_h
! 37: #define _xfs_h
! 38:
! 39: #include <sys/types.h>
! 40:
! 41: #include <xfs/xfs_common.h>
! 42: #include <xfs/xfs_node.h>
! 43: #include <xfs/xfs_attr.h>
! 44:
! 45: #define NNNPFS 2 /* maximal number of filesystems on a single device */
! 46:
! 47: /*
! 48: * Filesystem struct.
! 49: */
! 50:
! 51: struct xfs {
! 52: u_int status; /* Inited, opened or mounted */
! 53: #define NNPFS_MOUNTED 0x1
! 54: struct mount *mp;
! 55: struct xfs_node *root;
! 56: u_int nnodes;
! 57: int fd;
! 58: struct xfs_nodelist_head nodehead;
! 59: };
! 60:
! 61: #ifdef __osf__
! 62: #ifdef HAVE_STRUCT_MOUNT_M_INFO
! 63: #define VFS_TO_NNPFS(v) ((struct xfs *) ((v)->m_info))
! 64: #else
! 65: #define VFS_TO_NNPFS(v) ((struct xfs *) ((v)->m_data))
! 66: #endif
! 67: #else
! 68: #define VFS_TO_NNPFS(v) ((struct xfs *) ((v)->mnt_data))
! 69: #endif
! 70: #define NNPFS_TO_VFS(x) ((x)->mp)
! 71:
! 72: #define NNPFS_FROM_VNODE(vp) VFS_TO_NNPFS((vp)->v_mount)
! 73: #define NNPFS_FROM_XNODE(xp) NNPFS_FROM_VNODE(XNODE_TO_VNODE(xp))
! 74:
! 75: extern struct xfs xfs[];
! 76:
! 77: extern struct vnodeops xfs_vnodeops;
! 78:
! 79: int new_xfs_node(struct xfs *, struct xfs_msg_node *, struct xfs_node **,
! 80: d_thread_t *);
! 81: void free_xfs_node(struct xfs_node *);
! 82: int free_all_xfs_nodes(struct xfs *, int, int);
! 83:
! 84: int xfs_dnlc_enter(struct vnode *, xfs_componentname *, struct vnode *);
! 85: int xfs_dnlc_enter_name(struct vnode *, const char *, struct vnode *);
! 86: void xfs_dnlc_purge_mp(struct mount *);
! 87: void xfs_dnlc_purge(struct vnode *);
! 88: int xfs_dnlc_lookup(struct vnode *, xfs_componentname *, struct vnode **);
! 89: int xfs_dnlc_lookup_name(struct vnode *, const char *, struct vnode **);
! 90:
! 91: void vattr2xfs_attr(const struct vattr *, struct xfs_attr *);
! 92: void xfs_attr2vattr(const struct xfs_attr *, struct vattr *, int);
! 93:
! 94: int xfs_has_pag(const struct xfs_node *, xfs_pag_t);
! 95:
! 96: #endif /* _xfs_h */
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