1 files changed, 49 insertions, 0 deletions

diff --git a/fs/xfs/xfs_rw.h b/fs/xfs/xfs_rw.h
new file mode 100644
index 00000000000..11c41ec6ed7
--- /dev/null
+++ b/fs/xfs/xfs_rw.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2000-2006 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_RW_H__
+#define __XFS_RW_H__
+
+struct xfs_buf;
+struct xfs_inode;
+struct xfs_mount;
+
+/*
+ * Convert the given file system block to a disk block.
+ * We have to treat it differently based on whether the
+ * file is a real time file or not, because the bmap code
+ * does.
+ */
+static inline xfs_daddr_t
+xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb)
+{
+        return (XFS_IS_REALTIME_INODE(ip) ? \
+                 (xfs_daddr_t)XFS_FSB_TO_BB((ip)->i_mount, (fsb)) : \
+                 XFS_FSB_TO_DADDR((ip)->i_mount, (fsb)));
+}
+
+/*
+ * Prototypes for functions in xfs_rw.c.
+ */
+extern int xfs_read_buf(struct xfs_mount *mp, xfs_buftarg_t *btp,
+                        xfs_daddr_t blkno, int len, uint flags,
+                        struct xfs_buf **bpp);
+extern void xfs_ioerror_alert(char *func, struct xfs_mount *mp,
+                                xfs_buf_t *bp, xfs_daddr_t blkno);
+extern xfs_extlen_t xfs_get_extsz_hint(struct xfs_inode *ip);
+
+#endif /* __XFS_RW_H__ */