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authorArnd Bergmann <arnd@arndb.de>2011-10-20 18:30:25 +0200
committerArnd Bergmann <arnd@arndb.de>2011-10-20 18:30:25 +0200
commit995a0605a6665858d73f9e80053414909be33f27 (patch)
treefcc66a6a77acdaae492f77c0c58c0233db74a2b4 /fs/xfs/xfs_vnode.h
parenta32750c2ca6f697903b19063fc86f4272865e3a1 (diff)
parent677d3e2f07d1b3d6d2f76fd5552d16a53b9236a0 (diff)
downloadblackbird-op-linux-995a0605a6665858d73f9e80053414909be33f27.tar.gz
blackbird-op-linux-995a0605a6665858d73f9e80053414909be33f27.zip
Merge branch 'at91/trng' into next/driver
Diffstat (limited to 'fs/xfs/xfs_vnode.h')
-rw-r--r--fs/xfs/xfs_vnode.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/fs/xfs/xfs_vnode.h b/fs/xfs/xfs_vnode.h
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+++ b/fs/xfs/xfs_vnode.h
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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 xfs_iomap;
+struct attrlist_cursor_kern;
+
+/*
+ * Return values for xfs_inactive. A return value of
+ * VN_INACTIVE_NOCACHE implies that the file system behavior
+ * has disassociated its state and bhv_desc_t from the vnode.
+ */
+#define VN_INACTIVE_CACHE 0
+#define VN_INACTIVE_NOCACHE 1
+
+/*
+ * 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"}
+
+/*
+ * Flush/Invalidate options for vop_toss/flush/flushinval_pages.
+ */
+#define FI_NONE 0 /* none */
+#define FI_REMAPF 1 /* Do a remapf prior to the operation */
+#define FI_REMAPF_LOCKED 2 /* Do a remapf prior to the operation.
+ Prevent VM access to the pages until
+ the operation completes. */
+
+/*
+ * 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__ */
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