Initial import of modified Linux 2.6.28 tree

Original upstream URL:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git | branch linux-2.6.28.y

1 files changed, 106 insertions, 0 deletions

diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
new file mode 100644
index 0000000..1d9ef96
--- /dev/null
+++ b/fs/xfs/xfs_dir2.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2000-2001,2005 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_DIR2_H__
+#define	__XFS_DIR2_H__
+
+struct uio;
+struct xfs_dabuf;
+struct xfs_da_args;
+struct xfs_dir2_put_args;
+struct xfs_bmap_free;
+struct xfs_inode;
+struct xfs_mount;
+struct xfs_trans;
+
+/*
+ * Directory version 2.
+ * There are 4 possible formats:
+ *	shortform
+ *	single block - data with embedded leaf at the end
+ *	multiple data blocks, single leaf+freeindex block
+ *	data blocks, node&leaf blocks (btree), freeindex blocks
+ *
+ *	The shortform format is in xfs_dir2_sf.h.
+ *	The single block format is in xfs_dir2_block.h.
+ *	The data block format is in xfs_dir2_data.h.
+ *	The leaf and freeindex block formats are in xfs_dir2_leaf.h.
+ *	Node blocks are the same as the other version, in xfs_da_btree.h.
+ */
+
+/*
+ * Byte offset in data block and shortform entry.
+ */
+typedef	__uint16_t	xfs_dir2_data_off_t;
+#define	NULLDATAOFF	0xffffU
+typedef uint		xfs_dir2_data_aoff_t;	/* argument form */
+
+/*
+ * Directory block number (logical dirblk in file)
+ */
+typedef	__uint32_t	xfs_dir2_db_t;
+
+/*
+ * Byte offset in a directory.
+ */
+typedef	xfs_off_t	xfs_dir2_off_t;
+
+extern struct xfs_name	xfs_name_dotdot;
+
+/*
+ * Generic directory interface routines
+ */
+extern void xfs_dir_startup(void);
+extern void xfs_dir_mount(struct xfs_mount *mp);
+extern int xfs_dir_isempty(struct xfs_inode *dp);
+extern int xfs_dir_init(struct xfs_trans *tp, struct xfs_inode *dp,
+				struct xfs_inode *pdp);
+extern int xfs_dir_createname(struct xfs_trans *tp, struct xfs_inode *dp,
+				struct xfs_name *name, xfs_ino_t inum,
+				xfs_fsblock_t *first,
+				struct xfs_bmap_free *flist, xfs_extlen_t tot);
+extern int xfs_dir_lookup(struct xfs_trans *tp, struct xfs_inode *dp,
+				struct xfs_name *name, xfs_ino_t *inum,
+				struct xfs_name *ci_name);
+extern int xfs_dir_removename(struct xfs_trans *tp, struct xfs_inode *dp,
+				struct xfs_name *name, xfs_ino_t ino,
+				xfs_fsblock_t *first,
+				struct xfs_bmap_free *flist, xfs_extlen_t tot);
+extern int xfs_dir_replace(struct xfs_trans *tp, struct xfs_inode *dp,
+				struct xfs_name *name, xfs_ino_t inum,
+				xfs_fsblock_t *first,
+				struct xfs_bmap_free *flist, xfs_extlen_t tot);
+extern int xfs_dir_canenter(struct xfs_trans *tp, struct xfs_inode *dp,
+				struct xfs_name *name, uint resblks);
+extern int xfs_dir_ino_validate(struct xfs_mount *mp, xfs_ino_t ino);
+
+/*
+ * Utility routines for v2 directories.
+ */
+extern int xfs_dir2_grow_inode(struct xfs_da_args *args, int space,
+				xfs_dir2_db_t *dbp);
+extern int xfs_dir2_isblock(struct xfs_trans *tp, struct xfs_inode *dp,
+				int *vp);
+extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp,
+				int *vp);
+extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
+				struct xfs_dabuf *bp);
+
+extern int xfs_dir_cilookup_result(struct xfs_da_args *args, const char *name,
+				int len);
+
+#endif	/* __XFS_DIR2_H__ */