Sync XFS for FreeBSD tree with newer changes from SGI XFS for Linux tree.

Improve support for writing to XFS partitions.

Work done by:	Russell Cattelan <cattelan at xfs dot org>

1 files changed, 93 insertions, 141 deletions

diff --git a/sys/gnu/fs/xfs/xfs_attr_leaf.h b/sys/gnu/fs/xfs/xfs_attr_leaf.h
index 39c48a0..8b8e3a8 100644
--- a/sys/gnu/fs/xfs/xfs_attr_leaf.h
+++ b/sys/gnu/fs/xfs/xfs_attr_leaf.h
@@ -1,33 +1,19 @@
 /*
- * Copyright (c) 2000, 2002-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000,2002-2003,2005 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
  */
 #ifndef __XFS_ATTR_LEAF_H__
 #define	__XFS_ATTR_LEAF_H__
@@ -77,7 +63,7 @@ struct xfs_trans;
  * the leaf_entry.  The namespaces are independent only because we also look
  * at the namespace bit when we are looking for a matching attribute name.
  *
- * We also store a "incomplete" bit in the leaf_entry.  It shows that an
+ * We also store an "incomplete" bit in the leaf_entry.  It shows that an
  * attribute is in the middle of being created and should not be shown to
  * the user if we crash during the time that the bit is set.  We clear the
  * bit when we have finished setting up the attribute.  We do this because
@@ -86,42 +72,48 @@ struct xfs_trans;
  */
 #define XFS_ATTR_LEAF_MAPSIZE	3	/* how many freespace slots */
 
+typedef struct xfs_attr_leaf_map {	/* RLE map of free bytes */
+	__be16	base;			  /* base of free region */
+	__be16	size;			  /* length of free region */
+} xfs_attr_leaf_map_t;
+
+typedef struct xfs_attr_leaf_hdr {	/* constant-structure header block */
+	xfs_da_blkinfo_t info;		/* block type, links, etc. */
+	__be16	count;			/* count of active leaf_entry's */
+	__be16	usedbytes;		/* num bytes of names/values stored */
+	__be16	firstused;		/* first used byte in name area */
+	__u8	holes;			/* != 0 if blk needs compaction */
+	__u8	pad1;
+	xfs_attr_leaf_map_t freemap[XFS_ATTR_LEAF_MAPSIZE];
+					/* N largest free regions */
+} xfs_attr_leaf_hdr_t;
+
+typedef struct xfs_attr_leaf_entry {	/* sorted on key, not name */
+	__be32	hashval;		/* hash value of name */
+ 	__be16	nameidx;		/* index into buffer of name/value */
+	__u8	flags;			/* LOCAL/ROOT/SECURE/INCOMPLETE flag */
+	__u8	pad2;			/* unused pad byte */
+} xfs_attr_leaf_entry_t;
+
+typedef struct xfs_attr_leaf_name_local {
+	__be16	valuelen;		/* number of bytes in value */
+	__u8	namelen;		/* length of name bytes */
+	__u8	nameval[1];		/* name/value bytes */
+} xfs_attr_leaf_name_local_t;
+
+typedef struct xfs_attr_leaf_name_remote {
+	__be32	valueblk;		/* block number of value bytes */
+	__be32	valuelen;		/* number of bytes in value */
+	__u8	namelen;		/* length of name bytes */
+	__u8	name[1];		/* name bytes */
+} xfs_attr_leaf_name_remote_t;
+
 typedef struct xfs_attr_leafblock {
-	struct xfs_attr_leaf_hdr {	/* constant-structure header block */
-		xfs_da_blkinfo_t info;	/* block type, links, etc. */
-		__uint16_t count;	/* count of active leaf_entry's */
-		__uint16_t usedbytes;	/* num bytes of names/values stored */
-		__uint16_t firstused;	/* first used byte in name area */
-		__uint8_t  holes;	/* != 0 if blk needs compaction */
-		__uint8_t  pad1;
-		struct xfs_attr_leaf_map {	  /* RLE map of free bytes */
-			__uint16_t base;	  /* base of free region */
-			__uint16_t size;	  /* length of free region */
-		} freemap[XFS_ATTR_LEAF_MAPSIZE]; /* N largest free regions */
-	} hdr;
-	struct xfs_attr_leaf_entry {	/* sorted on key, not name */
-		xfs_dahash_t hashval;	/* hash value of name */
-		__uint16_t nameidx;	/* index into buffer of name/value */
-		__uint8_t flags;	/* LOCAL/ROOT/SECURE/INCOMPLETE flag */
-		__uint8_t pad2;		/* unused pad byte */
-	} entries[1];			/* variable sized array */
-	struct xfs_attr_leaf_name_local {
-		__uint16_t valuelen;	/* number of bytes in value */
-		__uint8_t namelen;	/* length of name bytes */
-		__uint8_t nameval[1];	/* name/value bytes */
-	} namelist;			/* grows from bottom of buf */
-	struct xfs_attr_leaf_name_remote {
-		xfs_dablk_t valueblk;	/* block number of value bytes */
-		__uint32_t valuelen;	/* number of bytes in value */
-		__uint8_t namelen;	/* length of name bytes */
-		__uint8_t name[1];	/* name bytes */
-	} valuelist;			/* grows from bottom of buf */
+	xfs_attr_leaf_hdr_t	hdr;	/* constant-structure header block */
+	xfs_attr_leaf_entry_t	entries[1];	/* sorted on key, not name */
+	xfs_attr_leaf_name_local_t namelist;	/* grows from bottom of buf */
+	xfs_attr_leaf_name_remote_t valuelist;	/* grows from bottom of buf */
 } xfs_attr_leafblock_t;
-typedef struct xfs_attr_leaf_hdr xfs_attr_leaf_hdr_t;
-typedef struct xfs_attr_leaf_map xfs_attr_leaf_map_t;
-typedef struct xfs_attr_leaf_entry xfs_attr_leaf_entry_t;
-typedef struct xfs_attr_leaf_name_local xfs_attr_leaf_name_local_t;
-typedef struct xfs_attr_leaf_name_remote xfs_attr_leaf_name_remote_t;
 
 /*
  * Flags used in the leaf_entry[i].flags field.
@@ -146,87 +138,58 @@ typedef struct xfs_attr_leaf_name_remote xfs_attr_leaf_name_remote_t;
 /*
  * Cast typed pointers for "local" and "remote" name/value structs.
  */
-#if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_NAME_REMOTE)
-xfs_attr_leaf_name_remote_t *
-xfs_attr_leaf_name_remote(xfs_attr_leafblock_t *leafp, int idx);
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_NAME_REMOTE)
 #define XFS_ATTR_LEAF_NAME_REMOTE(leafp,idx)	\
 	xfs_attr_leaf_name_remote(leafp,idx)
-#else
-#define XFS_ATTR_LEAF_NAME_REMOTE(leafp,idx)	/* remote name struct ptr */ \
-	((xfs_attr_leaf_name_remote_t *)		\
-	 &((char *)(leafp))[ INT_GET((leafp)->entries[idx].nameidx, ARCH_CONVERT) ])
-#endif
+static inline xfs_attr_leaf_name_remote_t *
+xfs_attr_leaf_name_remote(xfs_attr_leafblock_t *leafp, int idx)
+{
+	return (xfs_attr_leaf_name_remote_t *)
+		&((char *)leafp)[be16_to_cpu(leafp->entries[idx].nameidx)];
+}
 
-#if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_NAME_LOCAL)
-xfs_attr_leaf_name_local_t *
-xfs_attr_leaf_name_local(xfs_attr_leafblock_t *leafp, int idx);
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_NAME_LOCAL)
 #define XFS_ATTR_LEAF_NAME_LOCAL(leafp,idx)	\
 	xfs_attr_leaf_name_local(leafp,idx)
-#else
-#define XFS_ATTR_LEAF_NAME_LOCAL(leafp,idx)	/* local name struct ptr */ \
-	((xfs_attr_leaf_name_local_t *)		\
-	 &((char *)(leafp))[ INT_GET((leafp)->entries[idx].nameidx, ARCH_CONVERT) ])
-#endif
-
-#if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_NAME)
-char *xfs_attr_leaf_name(xfs_attr_leafblock_t *leafp, int idx);
-#endif
+static inline xfs_attr_leaf_name_local_t *
+xfs_attr_leaf_name_local(xfs_attr_leafblock_t *leafp, int idx)
+{
+	return (xfs_attr_leaf_name_local_t *)
+		&((char *)leafp)[be16_to_cpu(leafp->entries[idx].nameidx)];
+}
 
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_NAME)
-#define XFS_ATTR_LEAF_NAME(leafp,idx)		xfs_attr_leaf_name(leafp,idx)
-#else
-#define XFS_ATTR_LEAF_NAME(leafp,idx)		/* generic name struct ptr */ \
-	(&((char *)(leafp))[ INT_GET((leafp)->entries[idx].nameidx, ARCH_CONVERT) ])
-#endif
+#define XFS_ATTR_LEAF_NAME(leafp,idx)		\
+	xfs_attr_leaf_name(leafp,idx)
+static inline char *xfs_attr_leaf_name(xfs_attr_leafblock_t *leafp, int idx)
+{
+	return &((char *)leafp)[be16_to_cpu(leafp->entries[idx].nameidx)];
+}
 
 /*
  * Calculate total bytes used (including trailing pad for alignment) for
  * a "local" name/value structure, a "remote" name/value structure, and
  * a pointer which might be either.
  */
-#if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_ENTSIZE_REMOTE)
-int xfs_attr_leaf_entsize_remote(int nlen);
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_ENTSIZE_REMOTE)
 #define XFS_ATTR_LEAF_ENTSIZE_REMOTE(nlen)	\
 	xfs_attr_leaf_entsize_remote(nlen)
-#else
-#define XFS_ATTR_LEAF_ENTSIZE_REMOTE(nlen)	/* space for remote struct */ \
-	(((uint)sizeof(xfs_attr_leaf_name_remote_t) - 1 + (nlen) + \
-	  XFS_ATTR_LEAF_NAME_ALIGN - 1) & ~(XFS_ATTR_LEAF_NAME_ALIGN - 1))
-#endif
-
-#if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_ENTSIZE_LOCAL)
-int xfs_attr_leaf_entsize_local(int nlen, int vlen);
-#endif
+static inline int xfs_attr_leaf_entsize_remote(int nlen)
+{
+	return ((uint)sizeof(xfs_attr_leaf_name_remote_t) - 1 + (nlen) + \
+		XFS_ATTR_LEAF_NAME_ALIGN - 1) & ~(XFS_ATTR_LEAF_NAME_ALIGN - 1);
+}
 
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_ENTSIZE_LOCAL)
 #define XFS_ATTR_LEAF_ENTSIZE_LOCAL(nlen,vlen)	\
 	xfs_attr_leaf_entsize_local(nlen,vlen)
-#else
-#define XFS_ATTR_LEAF_ENTSIZE_LOCAL(nlen,vlen)	/* space for local struct */ \
-	(((uint)sizeof(xfs_attr_leaf_name_local_t) - 1 + (nlen) + (vlen) + \
-	  XFS_ATTR_LEAF_NAME_ALIGN - 1) & ~(XFS_ATTR_LEAF_NAME_ALIGN - 1))
-#endif
+static inline int xfs_attr_leaf_entsize_local(int nlen, int vlen)
+{
+	return ((uint)sizeof(xfs_attr_leaf_name_local_t) - 1 + (nlen) + (vlen) +
+		XFS_ATTR_LEAF_NAME_ALIGN - 1) & ~(XFS_ATTR_LEAF_NAME_ALIGN - 1);
+}
 
-#if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_ENTSIZE_LOCAL_MAX)
-int xfs_attr_leaf_entsize_local_max(int bsize);
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_ENTSIZE_LOCAL_MAX)
 #define XFS_ATTR_LEAF_ENTSIZE_LOCAL_MAX(bsize)	\
 	xfs_attr_leaf_entsize_local_max(bsize)
-#else
-#define XFS_ATTR_LEAF_ENTSIZE_LOCAL_MAX(bsize)	/* max local struct size */ \
-	(((bsize) >> 1) + ((bsize) >> 2))
-#endif
+static inline int xfs_attr_leaf_entsize_local_max(int bsize)
+{
+	return (((bsize) >> 1) + ((bsize) >> 2));
+}
 
 
 /*========================================================================
@@ -259,23 +222,24 @@ typedef struct xfs_attr_inactive_list {
  *========================================================================*/
 
 /*
- * Internal routines when dirsize < XFS_LITINO(mp).
+ * Internal routines when attribute fork size < XFS_LITINO(mp).
  */
-int	xfs_attr_shortform_create(struct xfs_da_args *args);
-int	xfs_attr_shortform_add(struct xfs_da_args *add);
+void	xfs_attr_shortform_create(struct xfs_da_args *args);
+void	xfs_attr_shortform_add(struct xfs_da_args *args, int forkoff);
 int	xfs_attr_shortform_lookup(struct xfs_da_args *args);
 int	xfs_attr_shortform_to_leaf(struct xfs_da_args *args);
-int	xfs_attr_shortform_remove(struct xfs_da_args *remove);
+int	xfs_attr_shortform_remove(struct xfs_da_args *args);
 int	xfs_attr_shortform_list(struct xfs_attr_list_context *context);
-int	xfs_attr_shortform_replace(struct xfs_da_args *args);
 int	xfs_attr_shortform_allfit(struct xfs_dabuf *bp, struct xfs_inode *dp);
+int	xfs_attr_shortform_bytesfit(xfs_inode_t *dp, int bytes);
+
 
 /*
- * Internal routines when dirsize == XFS_LBSIZE(mp).
+ * Internal routines when attribute fork size == XFS_LBSIZE(mp).
  */
 int	xfs_attr_leaf_to_node(struct xfs_da_args *args);
 int	xfs_attr_leaf_to_shortform(struct xfs_dabuf *bp,
-					  struct xfs_da_args *args);
+				   struct xfs_da_args *args, int forkoff);
 int	xfs_attr_leaf_clearflag(struct xfs_da_args *args);
 int	xfs_attr_leaf_setflag(struct xfs_da_args *args);
 int	xfs_attr_leaf_flipflags(xfs_da_args_t *args);
@@ -283,8 +247,6 @@ int	xfs_attr_leaf_flipflags(xfs_da_args_t *args);
 /*
  * Routines used for growing the Btree.
  */
-int	xfs_attr_leaf_create(struct xfs_da_args *args, xfs_dablk_t which_block,
-				    struct xfs_dabuf **bpp);
 int	xfs_attr_leaf_split(struct xfs_da_state *state,
 				   struct xfs_da_state_blk *oldblk,
 				   struct xfs_da_state_blk *newblk);
@@ -306,12 +268,6 @@ void	xfs_attr_leaf_unbalance(struct xfs_da_state *state,
 				       struct xfs_da_state_blk *drop_blk,
 				       struct xfs_da_state_blk *save_blk);
 int	xfs_attr_root_inactive(struct xfs_trans **trans, struct xfs_inode *dp);
-int	xfs_attr_node_inactive(struct xfs_trans **trans, struct xfs_inode *dp,
-				      struct xfs_dabuf *bp, int level);
-int	xfs_attr_leaf_inactive(struct xfs_trans **trans, struct xfs_inode *dp,
-				      struct xfs_dabuf *bp);
-int	xfs_attr_leaf_freextent(struct xfs_trans **trans, struct xfs_inode *dp,
-				       xfs_dablk_t blkno, int blkcnt);
 
 /*
  * Utility routines.
@@ -319,12 +275,8 @@ int	xfs_attr_leaf_freextent(struct xfs_trans **trans, struct xfs_inode *dp,
 xfs_dahash_t	xfs_attr_leaf_lasthash(struct xfs_dabuf *bp, int *count);
 int	xfs_attr_leaf_order(struct xfs_dabuf *leaf1_bp,
 				   struct xfs_dabuf *leaf2_bp);
-int	xfs_attr_leaf_newentsize(struct xfs_da_args *args, int blocksize,
+int	xfs_attr_leaf_newentsize(int namelen, int valuelen, int blocksize,
 					int *local);
-int	xfs_attr_leaf_entsize(struct xfs_attr_leafblock *leaf, int index);
-int	xfs_attr_put_listent(struct xfs_attr_list_context *context,
-			     struct attrnames *, char *name, int namelen,
-			     int valuelen);
 int	xfs_attr_rolltrans(struct xfs_trans **transp, struct xfs_inode *dp);
 
 #endif	/* __XFS_ATTR_LEAF_H__ */