/*
- * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2002,2005-2006 Silicon Graphics, Inc.
+ * All Rights Reserved.
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
+ * 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.
+ * 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.
*
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ * 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
*/
-
#include "xfs.h"
+#include "xfs_vnodeops.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_inode.h"
+#include "xfs_trace.h"
-/*
- * Stub for no-op vnode operations that return error status.
- */
-int
-fs_noerr(void)
-{
- return 0;
-}
-
-/*
- * Operation unsupported under this file system.
- */
-int
-fs_nosys(void)
-{
- return ENOSYS;
-}
-
-/*
- * Stub for inactive, strategy, and read/write lock/unlock. Does nothing.
- */
-/* ARGSUSED */
-void
-fs_noval(void)
-{
-}
+int fs_noerr(void) { return 0; }
+int fs_nosys(void) { return ENOSYS; }
+void fs_noval(void) { return; }
/*
- * vnode pcache layer for vnode_tosspages.
- * 'last' parameter unused but left in for IRIX compatibility
+ * note: all filemap functions return negative error codes. These
+ * need to be inverted before returning to the xfs core functions.
*/
void
-fs_tosspages(
- bhv_desc_t *bdp,
+xfs_tosspages(
+ xfs_inode_t *ip,
xfs_off_t first,
xfs_off_t last,
int fiopt)
{
- vnode_t *vp = BHV_TO_VNODE(bdp);
- struct inode *ip = LINVFS_GET_IP(vp);
+ struct address_space *mapping = VFS_I(ip)->i_mapping;
- if (VN_CACHED(vp))
- truncate_inode_pages(ip->i_mapping, first);
+ if (mapping->nrpages)
+ truncate_inode_pages(mapping, first);
}
-
-/*
- * vnode pcache layer for vnode_flushinval_pages.
- * 'last' parameter unused but left in for IRIX compatibility
- */
-void
-fs_flushinval_pages(
- bhv_desc_t *bdp,
+int
+xfs_flushinval_pages(
+ xfs_inode_t *ip,
xfs_off_t first,
xfs_off_t last,
int fiopt)
{
- vnode_t *vp = BHV_TO_VNODE(bdp);
- struct inode *ip = LINVFS_GET_IP(vp);
+ struct address_space *mapping = VFS_I(ip)->i_mapping;
+ int ret = 0;
- if (VN_CACHED(vp)) {
- filemap_fdatawrite(ip->i_mapping);
- filemap_fdatawait(ip->i_mapping);
+ trace_xfs_pagecache_inval(ip, first, last);
- truncate_inode_pages(ip->i_mapping, first);
+ if (mapping->nrpages) {
+ xfs_iflags_clear(ip, XFS_ITRUNCATED);
+ ret = filemap_write_and_wait(mapping);
+ if (!ret)
+ truncate_inode_pages(mapping, first);
}
+ return -ret;
}
-/*
- * vnode pcache layer for vnode_flush_pages.
- * 'last' parameter unused but left in for IRIX compatibility
- */
int
-fs_flush_pages(
- bhv_desc_t *bdp,
+xfs_flush_pages(
+ xfs_inode_t *ip,
xfs_off_t first,
xfs_off_t last,
uint64_t flags,
int fiopt)
{
- vnode_t *vp = BHV_TO_VNODE(bdp);
- struct inode *ip = LINVFS_GET_IP(vp);
+ struct address_space *mapping = VFS_I(ip)->i_mapping;
+ int ret = 0;
+ int ret2;
- if (VN_CACHED(vp)) {
- filemap_fdatawrite(ip->i_mapping);
- filemap_fdatawait(ip->i_mapping);
+ if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
+ xfs_iflags_clear(ip, XFS_ITRUNCATED);
+ ret = -filemap_fdatawrite(mapping);
}
+ if (flags & XFS_B_ASYNC)
+ return ret;
+ ret2 = xfs_wait_on_pages(ip, first, last);
+ if (!ret)
+ ret = ret2;
+ return ret;
+}
+
+int
+xfs_wait_on_pages(
+ xfs_inode_t *ip,
+ xfs_off_t first,
+ xfs_off_t last)
+{
+ struct address_space *mapping = VFS_I(ip)->i_mapping;
+ if (mapping_tagged(mapping, PAGECACHE_TAG_WRITEBACK))
+ return -filemap_fdatawait(mapping);
return 0;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff