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kernel/linux-imx6_3.14.28/fs/xfs/xfs_vnode.h 1.32 KB
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  /*
   * Copyright (c) 2000-2005 Silicon Graphics, Inc.
   * All Rights Reserved.
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License as
   * published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it would be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write the Free Software Foundation,
   * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
   */
  #ifndef __XFS_VNODE_H__
  #define __XFS_VNODE_H__
  
  #include "xfs_fs.h"
  
  struct file;
  struct xfs_inode;
  struct attrlist_cursor_kern;
  
  /*
   * Flags for read/write calls - same values as IRIX
   */
  #define IO_ISDIRECT	0x00004		/* bypass page cache */
  #define IO_INVIS	0x00020		/* don't update inode timestamps */
  
  #define XFS_IO_FLAGS \
  	{ IO_ISDIRECT,	"DIRECT" }, \
  	{ IO_INVIS,	"INVIS"}
  
  /*
   * Some useful predicates.
   */
  #define VN_MAPPED(vp)	mapping_mapped(vp->i_mapping)
  #define VN_CACHED(vp)	(vp->i_mapping->nrpages)
  #define VN_DIRTY(vp)	mapping_tagged(vp->i_mapping, \
  					PAGECACHE_TAG_DIRTY)
  
  
  #endif	/* __XFS_VNODE_H__ */