[XFS] Move some code around to prepare for the upcoming extended

attributes format change (attr2).

SGI-PV: 941645
SGI-Modid: xfs-linux:xfs-kern:23833a

Signed-off-by: Nathan Scott <nathans@sgi.com>

4 files changed, 90 insertions, 99 deletions

diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index a41ad3a5e55..ce9f673f2b4 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000-2005 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
@@ -200,40 +200,18 @@ xfs_attr_get(bhv_desc_t *bdp, char *name, char *value, int *valuelenp,
 	return(error);
 }
 
-/*ARGSUSED*/
-int								/* error */
-xfs_attr_set(bhv_desc_t *bdp, char *name, char *value, int valuelen, int flags,
-		     struct cred *cred)
+int
+xfs_attr_set_int(xfs_inode_t *dp, char *name, int namelen,
+		 char *value, int valuelen, int flags)
 {
 	xfs_da_args_t	args;
-	xfs_inode_t	*dp;
 	xfs_fsblock_t	firstblock;
 	xfs_bmap_free_t flist;
 	int		error, err2, committed;
 	int		local, size;
 	uint		nblks;
-	xfs_mount_t	*mp;
+	xfs_mount_t	*mp = dp->i_mount;
 	int             rsvd = (flags & ATTR_ROOT) != 0;
-	int             namelen;
-
-	namelen = strlen(name);
-	if (namelen >= MAXNAMELEN)
-		return EFAULT;		/* match IRIX behaviour */
-
-	XFS_STATS_INC(xs_attr_set);
-
-	dp = XFS_BHVTOI(bdp);
-	mp = dp->i_mount;
-	if (XFS_FORCED_SHUTDOWN(mp))
-		return (EIO);
-
-	xfs_ilock(dp, XFS_ILOCK_SHARED);
-	if (!(flags & ATTR_SECURE) &&
-	     (error = xfs_iaccess(dp, S_IWUSR, cred))) {
-		xfs_iunlock(dp, XFS_ILOCK_SHARED);
-		return(XFS_ERROR(error));
-	}
-	xfs_iunlock(dp, XFS_ILOCK_SHARED);
 
 	/*
 	 * Attach the dquots to the inode.
@@ -270,7 +248,8 @@ xfs_attr_set(bhv_desc_t *bdp, char *name, char *value, int valuelen, int flags,
 	/* Determine space new attribute will use, and if it will be inline
 	 * or out of line.
 	 */
-	size = xfs_attr_leaf_newentsize(&args, mp->m_sb.sb_blocksize, &local);
+	size = xfs_attr_leaf_newentsize(namelen, valuelen,
+					mp->m_sb.sb_blocksize, &local);
 
 	nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
 	if (local) {
@@ -456,32 +435,21 @@ out:
 	return(error);
 }
 
-/*
- * Generic handler routine to remove a name from an attribute list.
- * Transitions attribute list from Btree to shortform as necessary.
- */
-/*ARGSUSED*/
-int								/* error */
-xfs_attr_remove(bhv_desc_t *bdp, char *name, int flags, struct cred *cred)
+int
+xfs_attr_set(bhv_desc_t *bdp, char *name, char *value, int valuelen, int flags,
+	     struct cred *cred)
 {
-	xfs_da_args_t       args;
-	xfs_inode_t         *dp;
-	xfs_fsblock_t       firstblock;
-	xfs_bmap_free_t     flist;
-	int                 error;
-	xfs_mount_t         *mp;
-	int                 namelen;
+	xfs_inode_t	*dp;
+	int             namelen, error;
 
-	ASSERT(MAXNAMELEN-1<=0xff); /* length is stored in uint8 */
 	namelen = strlen(name);
-	if (namelen>=MAXNAMELEN)
-		return EFAULT; /* match irix behaviour */
+	if (namelen >= MAXNAMELEN)
+		return EFAULT;		/* match IRIX behaviour */
 
-	XFS_STATS_INC(xs_attr_remove);
+	XFS_STATS_INC(xs_attr_set);
 
 	dp = XFS_BHVTOI(bdp);
-	mp = dp->i_mount;
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
 		return (EIO);
 
 	xfs_ilock(dp, XFS_ILOCK_SHARED);
@@ -489,14 +457,25 @@ xfs_attr_remove(bhv_desc_t *bdp, char *name, int flags, struct cred *cred)
 	     (error = xfs_iaccess(dp, S_IWUSR, cred))) {
 		xfs_iunlock(dp, XFS_ILOCK_SHARED);
 		return(XFS_ERROR(error));
-	} else if (XFS_IFORK_Q(dp) == 0 ||
-		   (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
-		    dp->i_d.di_anextents == 0)) {
-		xfs_iunlock(dp, XFS_ILOCK_SHARED);
-		return(XFS_ERROR(ENOATTR));
 	}
 	xfs_iunlock(dp, XFS_ILOCK_SHARED);
 
+	return xfs_attr_set_int(dp, name, namelen, value, valuelen, flags);
+}
+
+/*
+ * Generic handler routine to remove a name from an attribute list.
+ * Transitions attribute list from Btree to shortform as necessary.
+ */
+int
+xfs_attr_remove_int(xfs_inode_t *dp, char *name, int namelen, int flags)
+{
+	xfs_da_args_t	args;
+	xfs_fsblock_t	firstblock;
+	xfs_bmap_free_t	flist;
+	int		error;
+	xfs_mount_t	*mp = dp->i_mount;
+
 	/*
 	 * Fill in the arg structure for this request.
 	 */
@@ -612,6 +591,38 @@ out:
 	return(error);
 }
 
+int
+xfs_attr_remove(bhv_desc_t *bdp, char *name, int flags, struct cred *cred)
+{
+	xfs_inode_t         *dp;
+	int                 namelen, error;
+
+	namelen = strlen(name);
+	if (namelen >= MAXNAMELEN)
+		return EFAULT;		/* match IRIX behaviour */
+
+	XFS_STATS_INC(xs_attr_remove);
+
+	dp = XFS_BHVTOI(bdp);
+	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
+		return (EIO);
+
+	xfs_ilock(dp, XFS_ILOCK_SHARED);
+	if (!(flags & ATTR_SECURE) &&
+	     (error = xfs_iaccess(dp, S_IWUSR, cred))) {
+		xfs_iunlock(dp, XFS_ILOCK_SHARED);
+		return(XFS_ERROR(error));
+	} else if (XFS_IFORK_Q(dp) == 0 ||
+		   (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
+		    dp->i_d.di_anextents == 0)) {
+		xfs_iunlock(dp, XFS_ILOCK_SHARED);
+		return(XFS_ERROR(ENOATTR));
+	}
+	xfs_iunlock(dp, XFS_ILOCK_SHARED);
+
+	return xfs_attr_remove_int(dp, name, namelen, flags);
+}
+
 /*
  * Generate a list of extended attribute names and optionally
  * also value lengths.  Positive return value follows the XFS
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index 1cdd574c63a..e13eaa52143 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000-2005 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
@@ -898,7 +898,7 @@ xfs_attr_leaf_add(xfs_dabuf_t *bp, xfs_da_args_t *args)
 	ASSERT((args->index >= 0)
 		&& (args->index <= INT_GET(leaf->hdr.count, ARCH_CONVERT)));
 	hdr = &leaf->hdr;
-	entsize = xfs_attr_leaf_newentsize(args,
+	entsize = xfs_attr_leaf_newentsize(args->namelen, args->valuelen,
 			   args->trans->t_mountp->m_sb.sb_blocksize, NULL);
 
 	/*
@@ -995,13 +995,14 @@ xfs_attr_leaf_add_work(xfs_dabuf_t *bp, xfs_da_args_t *args, int mapindex)
 	mp = args->trans->t_mountp;
 	ASSERT(INT_GET(map->base, ARCH_CONVERT) < XFS_LBSIZE(mp));
 	ASSERT((INT_GET(map->base, ARCH_CONVERT) & 0x3) == 0);
-	ASSERT(INT_GET(map->size, ARCH_CONVERT)
-				>= xfs_attr_leaf_newentsize(args,
-					     mp->m_sb.sb_blocksize, NULL));
+	ASSERT(INT_GET(map->size, ARCH_CONVERT) >=
+		xfs_attr_leaf_newentsize(args->namelen, args->valuelen,
+					 mp->m_sb.sb_blocksize, NULL));
 	ASSERT(INT_GET(map->size, ARCH_CONVERT) < XFS_LBSIZE(mp));
 	ASSERT((INT_GET(map->size, ARCH_CONVERT) & 0x3) == 0);
 	INT_MOD(map->size, ARCH_CONVERT,
-		-xfs_attr_leaf_newentsize(args, mp->m_sb.sb_blocksize, &tmp));
+		-xfs_attr_leaf_newentsize(args->namelen, args->valuelen,
+					  mp->m_sb.sb_blocksize, &tmp));
 	INT_SET(entry->nameidx, ARCH_CONVERT,
 					INT_GET(map->base, ARCH_CONVERT)
 				      + INT_GET(map->size, ARCH_CONVERT));
@@ -1357,8 +1358,10 @@ xfs_attr_leaf_figure_balance(xfs_da_state_t *state,
 	half  = (max+1) * sizeof(*entry);
 	half += INT_GET(hdr1->usedbytes, ARCH_CONVERT)
 				+ INT_GET(hdr2->usedbytes, ARCH_CONVERT)
-				+ xfs_attr_leaf_newentsize(state->args,
-						     state->blocksize, NULL);
+				+ xfs_attr_leaf_newentsize(
+						state->args->namelen,
+						state->args->valuelen,
+						state->blocksize, NULL);
 	half /= 2;
 	lastdelta = state->blocksize;
 	entry = &leaf1->entries[0];
@@ -1370,9 +1373,10 @@ xfs_attr_leaf_figure_balance(xfs_da_state_t *state,
 		 */
 		if (count == blk1->index) {
 			tmp = totallen + sizeof(*entry) +
-				xfs_attr_leaf_newentsize(state->args,
-							 state->blocksize,
-							 NULL);
+				xfs_attr_leaf_newentsize(
+						state->args->namelen,
+						state->args->valuelen,
+						state->blocksize, NULL);
 			if (XFS_ATTR_ABS(half - tmp) > lastdelta)
 				break;
 			lastdelta = XFS_ATTR_ABS(half - tmp);
@@ -1408,9 +1412,10 @@ xfs_attr_leaf_figure_balance(xfs_da_state_t *state,
 	totallen -= count * sizeof(*entry);
 	if (foundit) {
 		totallen -= sizeof(*entry) +
-				xfs_attr_leaf_newentsize(state->args,
-							 state->blocksize,
-							 NULL);
+				xfs_attr_leaf_newentsize(
+						state->args->namelen,
+						state->args->valuelen,
+						state->blocksize, NULL);
 	}
 
 	*countarg = count;
@@ -2253,17 +2258,17 @@ xfs_attr_leaf_entsize(xfs_attr_leafblock_t *leaf, int index)
  * a "local" or a "remote" attribute.
  */
 int
-xfs_attr_leaf_newentsize(xfs_da_args_t *args, int blocksize, int *local)
+xfs_attr_leaf_newentsize(int namelen, int valuelen, int blocksize, int *local)
 {
 	int size;
 
-	size = XFS_ATTR_LEAF_ENTSIZE_LOCAL(args->namelen, args->valuelen);
+	size = XFS_ATTR_LEAF_ENTSIZE_LOCAL(namelen, valuelen);
 	if (size < XFS_ATTR_LEAF_ENTSIZE_LOCAL_MAX(blocksize)) {
 		if (local) {
 			*local = 1;
 		}
 	} else {
-		size = XFS_ATTR_LEAF_ENTSIZE_REMOTE(args->namelen);
+		size = XFS_ATTR_LEAF_ENTSIZE_REMOTE(namelen);
 		if (local) {
 			*local = 0;
 		}
diff --git a/fs/xfs/xfs_attr_leaf.h b/fs/xfs/xfs_attr_leaf.h
index 0a4cfad6df9..b99f0491061 100644
--- a/fs/xfs/xfs_attr_leaf.h
+++ b/fs/xfs/xfs_attr_leaf.h
@@ -1,5 +1,6 @@
 /*
- * 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
@@ -289,7 +290,7 @@ int	xfs_attr_root_inactive(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_rolltrans(struct xfs_trans **transp, struct xfs_inode *dp);
 
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 8b792ddf216..8e2597b1a02 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000-2005 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
@@ -190,9 +190,6 @@ xfs_da_split(xfs_da_state_t *state)
 		 */
 		switch (oldblk->magic) {
 		case XFS_ATTR_LEAF_MAGIC:
-#ifndef __KERNEL__
-			return(ENOTTY);
-#else
 			error = xfs_attr_leaf_split(state, oldblk, newblk);
 			if ((error != 0) && (error != ENOSPC)) {
 				return(error);	/* GROT: attr is inconsistent */
@@ -218,7 +215,6 @@ xfs_da_split(xfs_da_state_t *state)
 				return(error);	/* GROT: attr inconsistent */
 			addblk = newblk;
 			break;
-#endif
 		case XFS_DIR_LEAF_MAGIC:
 			ASSERT(XFS_DIR_IS_V1(state->mp));
 			error = xfs_dir_leaf_split(state, oldblk, newblk);
@@ -706,18 +702,12 @@ xfs_da_join(xfs_da_state_t *state)
 		 */
 		switch (drop_blk->magic) {
 		case XFS_ATTR_LEAF_MAGIC:
-#ifndef __KERNEL__
-			error = ENOTTY;
-#else
 			error = xfs_attr_leaf_toosmall(state, &action);
-#endif
 			if (error)
 				return(error);
 			if (action == 0)
 				return(0);
-#ifdef __KERNEL__
 			xfs_attr_leaf_unbalance(state, drop_blk, save_blk);
-#endif
 			break;
 		case XFS_DIR_LEAF_MAGIC:
 			ASSERT(XFS_DIR_IS_V1(state->mp));
@@ -973,13 +963,11 @@ xfs_da_fixhashpath(xfs_da_state_t *state, xfs_da_state_path_t *path)
 	level = path->active-1;
 	blk = &path->blk[ level ];
 	switch (blk->magic) {
-#ifdef __KERNEL__
 	case XFS_ATTR_LEAF_MAGIC:
 		lasthash = xfs_attr_leaf_lasthash(blk->bp, &count);
 		if (count == 0)
 			return;
 		break;
-#endif
 	case XFS_DIR_LEAF_MAGIC:
 		ASSERT(XFS_DIR_IS_V1(state->mp));
 		lasthash = xfs_dir_leaf_lasthash(blk->bp, &count);
@@ -1220,12 +1208,10 @@ xfs_da_node_lookup_int(xfs_da_state_t *state, int *result)
 				blkno = INT_GET(btree->before, ARCH_CONVERT);
 			}
 		}
-#ifdef __KERNEL__
 		else if (INT_GET(curr->magic, ARCH_CONVERT) == XFS_ATTR_LEAF_MAGIC) {
 			blk->hashval = xfs_attr_leaf_lasthash(blk->bp, NULL);
 			break;
 		}
-#endif
 		else if (INT_GET(curr->magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC) {
 			blk->hashval = xfs_dir_leaf_lasthash(blk->bp, NULL);
 			break;
@@ -1252,13 +1238,11 @@ xfs_da_node_lookup_int(xfs_da_state_t *state, int *result)
 			retval = xfs_dir2_leafn_lookup_int(blk->bp, args,
 							&blk->index, state);
 		}
-#ifdef __KERNEL__
 		else if (blk->magic == XFS_ATTR_LEAF_MAGIC) {
 			retval = xfs_attr_leaf_lookup_int(blk->bp, args);
 			blk->index = args->index;
 			args->blkno = blk->blkno;
 		}
-#endif
 		if (((retval == ENOENT) || (retval == ENOATTR)) &&
 		    (blk->hashval == args->hashval)) {
 			error = xfs_da_path_shift(state, &state->path, 1, 1,
@@ -1268,12 +1252,10 @@ xfs_da_node_lookup_int(xfs_da_state_t *state, int *result)
 			if (retval == 0) {
 				continue;
 			}
-#ifdef __KERNEL__
 			else if (blk->magic == XFS_ATTR_LEAF_MAGIC) {
 				/* path_shift() gives ENOENT */
 				retval = XFS_ERROR(ENOATTR);
 			}
-#endif
 		}
 		break;
 	}
@@ -1312,11 +1294,9 @@ xfs_da_blk_link(xfs_da_state_t *state, xfs_da_state_blk_t *old_blk,
 	ASSERT(old_blk->magic == new_blk->magic);
 
 	switch (old_blk->magic) {
-#ifdef __KERNEL__
 	case XFS_ATTR_LEAF_MAGIC:
 		before = xfs_attr_leaf_order(old_blk->bp, new_blk->bp);
 		break;
-#endif
 	case XFS_DIR_LEAF_MAGIC:
 		ASSERT(XFS_DIR_IS_V1(state->mp));
 		before = xfs_dir_leaf_order(old_blk->bp, new_blk->bp);
@@ -1587,12 +1567,10 @@ xfs_da_path_shift(xfs_da_state_t *state, xfs_da_state_path_t *path,
 			ASSERT(level == path->active-1);
 			blk->index = 0;
 			switch(blk->magic) {
-#ifdef __KERNEL__
 			case XFS_ATTR_LEAF_MAGIC:
 				blk->hashval = xfs_attr_leaf_lasthash(blk->bp,
 								      NULL);
 				break;
-#endif
 			case XFS_DIR_LEAF_MAGIC:
 				ASSERT(XFS_DIR_IS_V1(state->mp));
 				blk->hashval = xfs_dir_leaf_lasthash(blk->bp,
@@ -2200,20 +2178,16 @@ xfs_da_do_buf(
 			error = bp ? XFS_BUF_GETERROR(bp) : XFS_ERROR(EIO);
 			break;
 		case 1:
-#ifndef __KERNEL__
 		case 2:
-#endif
 			bp = NULL;
 			error = xfs_trans_read_buf(mp, trans, mp->m_ddev_targp,
 				mappedbno, nmapped, 0, &bp);
 			break;
-#ifdef __KERNEL__
 		case 3:
 			xfs_baread(mp->m_ddev_targp, mappedbno, nmapped);
 			error = 0;
 			bp = NULL;
 			break;
-#endif
 		}
 		if (error) {
 			if (bp)