/*
- * 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__
* 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
*/
#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.
/*
* Cast typed pointers for "local" and "remote" name/value structs.
*/
-#if XFS_WANT_FUNCS || (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);
#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
-#if XFS_WANT_FUNCS || (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);
+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)];
+}
+
#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_SPACE && XFSSO_XFS_ATTR_LEAF_NAME)
-char *xfs_attr_leaf_name(xfs_attr_leafblock_t *leafp, int idx);
-#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
+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)];
+}
+
+#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_SPACE && XFSSO_XFS_ATTR_LEAF_ENTSIZE_REMOTE)
-int xfs_attr_leaf_entsize_remote(int nlen);
#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_SPACE && XFSSO_XFS_ATTR_LEAF_ENTSIZE_LOCAL)
-int xfs_attr_leaf_entsize_local(int nlen, int vlen);
+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);
+}
+
#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
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_ENTSIZE_LOCAL_MAX)
-int xfs_attr_leaf_entsize_local_max(int bsize);
+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);
+}
+
#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));
+}
/*========================================================================
*========================================================================*/
/*
- * 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_getvalue(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_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);
/*
* 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);
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.
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__ */
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