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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 */