Annotation of sys/xfs/xfs_node.h, Revision 1.1
1.1 ! nbrk 1: /*
! 2: * Copyright (c) 1995 - 2002 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_node.h,v 1.33 2003/01/25 18:48:28 lha Exp $ */
! 35:
! 36: #ifndef _xfs_xnode_h
! 37: #define _xfs_xnode_h
! 38:
! 39: #include <sys/types.h>
! 40: #include <sys/time.h>
! 41: #ifdef HAVE_KERNEL_LF_ADVLOCK
! 42: #include <sys/lockf.h>
! 43: #endif
! 44:
! 45: #include <xfs/xfs_attr.h>
! 46: #include <xfs/xfs_message.h>
! 47: #include <xfs/xfs_queue.h>
! 48:
! 49: #ifdef __APPLE__
! 50: typedef struct lock__bsd__ xfs_vnode_lock;
! 51: #else
! 52: typedef struct lock xfs_vnode_lock;
! 53: #endif
! 54:
! 55: struct xfs_node {
! 56: #if defined(__NetBSD_Version__) && __NetBSD_Version__ >= 105280000
! 57: struct genfs_node gnode;
! 58: #endif
! 59: struct vnode *vn;
! 60: struct vnode *data;
! 61: struct vattr attr;
! 62: uint32_t offset;
! 63: u_int flags;
! 64: u_int tokens;
! 65: xfs_handle handle;
! 66: xfs_pag_t id[MAXRIGHTS];
! 67: u_char rights[MAXRIGHTS];
! 68: u_char anonrights;
! 69: #if defined(HAVE_KERNEL_LOCKMGR) || defined(HAVE_KERNEL_DEBUGLOCKMGR)
! 70: xfs_vnode_lock lock;
! 71: #else
! 72: int vnlocks;
! 73: #endif
! 74: #ifdef HAVE_KERNEL_LF_ADVLOCK
! 75: struct lockf *lockf;
! 76: #endif
! 77: struct ucred *rd_cred;
! 78: struct ucred *wr_cred;
! 79: NNPQUEUE_ENTRY(xfs_node) nn_hash;
! 80: };
! 81:
! 82: #define XN_HASHSIZE 101
! 83:
! 84: NNPQUEUE_HEAD(nh_node_list, xfs_node);
! 85:
! 86: struct xfs_nodelist_head {
! 87: struct nh_node_list nh_nodelist[XN_HASHSIZE];
! 88: };
! 89:
! 90: void nnfs_init_head(struct xfs_nodelist_head *);
! 91: void xfs_node_purge(struct xfs_nodelist_head *,
! 92: void (*func)(struct xfs_node *));
! 93: struct xfs_node *
! 94: xfs_node_find(struct xfs_nodelist_head *, xfs_handle *);
! 95: void xfs_remove_node(struct xfs_nodelist_head *, struct xfs_node *);
! 96: void xfs_insert(struct xfs_nodelist_head *, struct xfs_node *);
! 97: int xfs_update_handle(struct xfs_nodelist_head *, xfs_handle *,
! 98: xfs_handle *);
! 99:
! 100:
! 101: struct xfs;
! 102:
! 103: int xfs_getnewvnode(struct xfs *xfsp, struct vnode **vpp,
! 104: struct xfs_handle *handle);
! 105:
! 106:
! 107: #define DATA_FROM_VNODE(vp) DATA_FROM_XNODE(VNODE_TO_XNODE(vp))
! 108:
! 109: #define DATA_FROM_XNODE(xp) ((xp)->data)
! 110:
! 111: #define XNODE_TO_VNODE(xp) ((xp)->vn)
! 112: #define VNODE_TO_XNODE(vp) ((struct xfs_node *) (vp)->v_data)
! 113:
! 114: #if defined(HAVE_ONE_ARGUMENT_VGET)
! 115: #define xfs_do_vget(vp, lockflag, proc) vget((vp))
! 116: #elif defined(HAVE_TWO_ARGUMENT_VGET)
! 117: #define xfs_do_vget(vp, lockflag, proc) vget((vp), (lockflag))
! 118: #elif defined(HAVE_THREE_ARGUMENT_VGET)
! 119: #define xfs_do_vget(vp, lockflag, proc) vget((vp), (lockflag), (proc))
! 120: #else
! 121: #error what kind of vget
! 122: #endif
! 123:
! 124: #ifndef HAVE_VOP_T
! 125: typedef int vop_t (void *);
! 126: #endif
! 127:
! 128: #ifdef LK_INTERLOCK
! 129: #define HAVE_LK_INTERLOCK
! 130: #else
! 131: #define LK_INTERLOCK 0
! 132: #endif
! 133:
! 134: #ifdef LK_RETRY
! 135: #define HAVE_LK_RETRY
! 136: #else
! 137: #define LK_RETRY 0
! 138: #endif
! 139:
! 140: /*
! 141: * This is compat code for older vfs that have a
! 142: * vget that only takes an integer (really boolean) argument
! 143: * that the returned vnode will be returned locked
! 144: */
! 145:
! 146: #ifdef LK_EXCLUSIVE
! 147: #define HAVE_LK_EXCLUSIVE 1
! 148: #else
! 149: #define LK_EXCLUSIVE 1
! 150: #endif
! 151:
! 152: #ifdef LK_SHARED
! 153: #define HAVE_LK_SHARED 1
! 154: #else
! 155: #define LK_SHARED 1
! 156: #endif
! 157:
! 158: void xfs_update_write_cred(struct xfs_node *, struct ucred *);
! 159: void xfs_update_read_cred(struct xfs_node *, struct ucred *);
! 160:
! 161: #endif /* _xfs_xnode_h */
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