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 xfs_iomap; 26struct attrlist_cursor_kern; 27 28/* 29 * Return values for xfs_inactive. A return value of 30 * VN_INACTIVE_NOCACHE implies that the file system behavior 31 * has disassociated its state and bhv_desc_t from the vnode. 32 */ 33#define VN_INACTIVE_CACHE 0 34#define VN_INACTIVE_NOCACHE 1 35 36/* 37 * Flags for read/write calls - same values as IRIX 38 */ 39#define IO_ISDIRECT 0x00004 /* bypass page cache */ 40#define IO_INVIS 0x00020 /* don't update inode timestamps */ 41 42#define XFS_IO_FLAGS \ 43 { IO_ISDIRECT, "DIRECT" }, \ 44 { IO_INVIS, "INVIS"} 45 46/* 47 * Flush/Invalidate options for vop_toss/flush/flushinval_pages. 48 */ 49#define FI_NONE 0 /* none */ 50#define FI_REMAPF 1 /* Do a remapf prior to the operation */ 51#define FI_REMAPF_LOCKED 2 /* Do a remapf prior to the operation. 52 Prevent VM access to the pages until 53 the operation completes. */ 54 55/* 56 * Some useful predicates. 57 */ 58#define VN_MAPPED(vp) mapping_mapped(vp->i_mapping) 59#define VN_CACHED(vp) (vp->i_mapping->nrpages) 60#define VN_DIRTY(vp) mapping_tagged(vp->i_mapping, \ 61 PAGECACHE_TAG_DIRTY) 62 63 64#endif /* __XFS_VNODE_H__ */ 65