1/* 2 * Copyright (c) 2000-2005 Silicon Graphics, Inc. 3 * All Rights Reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it would be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18#ifndef __XFS_VNODE_H__ 19#define __XFS_VNODE_H__ 20 21#include "xfs_fs.h" 22 23struct file; 24struct xfs_inode; 25struct attrlist_cursor_kern; 26 27/* 28 * Return values for xfs_inactive. A return value of 29 * VN_INACTIVE_NOCACHE implies that the file system behavior 30 * has disassociated its state and bhv_desc_t from the vnode. 31 */ 32#define VN_INACTIVE_CACHE 0 33#define VN_INACTIVE_NOCACHE 1 34 35/* 36 * Flags for read/write calls - same values as IRIX 37 */ 38#define IO_ISDIRECT 0x00004 /* bypass page cache */ 39#define IO_INVIS 0x00020 /* don't update inode timestamps */ 40 41#define XFS_IO_FLAGS \ 42 { IO_ISDIRECT, "DIRECT" }, \ 43 { IO_INVIS, "INVIS"} 44 45/* 46 * Flush/Invalidate options for vop_toss/flush/flushinval_pages. 47 */ 48#define FI_NONE 0 /* none */ 49#define FI_REMAPF 1 /* Do a remapf prior to the operation */ 50#define FI_REMAPF_LOCKED 2 /* Do a remapf prior to the operation. 51 Prevent VM access to the pages until 52 the operation completes. */ 53 54/* 55 * Some useful predicates. 56 */ 57#define VN_MAPPED(vp) mapping_mapped(vp->i_mapping) 58#define VN_CACHED(vp) (vp->i_mapping->nrpages) 59#define VN_DIRTY(vp) mapping_tagged(vp->i_mapping, \ 60 PAGECACHE_TAG_DIRTY) 61 62 63#endif /* __XFS_VNODE_H__ */ 64