X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=fs%2Fxfs%2Fxfs_attr_leaf.c;h=81f45dae1c57f668c09786b405b2b805862bb556;hb=1c0eeaf5698597146ed9b873e2f9e0961edcf0f9;hp=9719bbef122ce355c20894a51d424e4b264be933;hpb=5ffd1a6aaacc25be8cd0770a51ec6d46add3a276;p=linux-2.6-omap-h63xx.git

diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index 9719bbef122..81f45dae1c5 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -94,7 +94,7 @@ STATIC int xfs_attr_leaf_entsize(xfs_attr_leafblock_t *leaf, int index);
  * Namespace helper routines
  *========================================================================*/
 
-STATIC inline attrnames_t *
+STATIC_INLINE attrnames_t *
 xfs_attr_flags_namesp(int flags)
 {
 	return ((flags & XFS_ATTR_SECURE) ? &attr_secure:
@@ -105,7 +105,7 @@ xfs_attr_flags_namesp(int flags)
  * If namespace bits don't match return 0.
  * If all match then return 1.
  */
-STATIC inline int
+STATIC_INLINE int
 xfs_attr_namesp_match(int arg_flags, int ondisk_flags)
 {
 	return XFS_ATTR_NSP_ONDISK(ondisk_flags) == XFS_ATTR_NSP_ARGS_TO_ONDISK(arg_flags);
@@ -116,7 +116,7 @@ xfs_attr_namesp_match(int arg_flags, int ondisk_flags)
  * then return 0.
  * If all match or are overridable then return 1.
  */
-STATIC inline int
+STATIC_INLINE int
 xfs_attr_namesp_match_overrides(int arg_flags, int ondisk_flags)
 {
 	if (((arg_flags & ATTR_SECURE) == 0) !=
@@ -150,6 +150,7 @@ xfs_attr_shortform_bytesfit(xfs_inode_t *dp, int bytes)
 	int offset;
 	int minforkoff;	/* lower limit on valid forkoff locations */
 	int maxforkoff;	/* upper limit on valid forkoff locations */
+	int dsize;	
 	xfs_mount_t *mp = dp->i_mount;
 
 	offset = (XFS_LITINO(mp) - bytes) >> 3; /* rounded down */
@@ -169,8 +170,43 @@ xfs_attr_shortform_bytesfit(xfs_inode_t *dp, int bytes)
 		return 0;
 	}
 
-	/* data fork btree root can have at least this many key/ptr pairs */
-	minforkoff = MAX(dp->i_df.if_bytes, XFS_BMDR_SPACE_CALC(MINDBTPTRS));
+	dsize = dp->i_df.if_bytes;
+	
+	switch (dp->i_d.di_format) {
+	case XFS_DINODE_FMT_EXTENTS:
+		/* 
+		 * If there is no attr fork and the data fork is extents, 
+		 * determine if creating the default attr fork will result 
+		 * in the extents form migrating to btree. If so, the 
+		 * minimum offset only needs to be the space required for 
+		 * the btree root.
+		 */ 
+		if (!dp->i_d.di_forkoff && dp->i_df.if_bytes > mp->m_attroffset)
+			dsize = XFS_BMDR_SPACE_CALC(MINDBTPTRS);
+		break;
+		
+	case XFS_DINODE_FMT_BTREE:
+		/*
+		 * If have data btree then keep forkoff if we have one,
+		 * otherwise we are adding a new attr, so then we set 
+		 * minforkoff to where the btree root can finish so we have 
+		 * plenty of room for attrs
+		 */
+		if (dp->i_d.di_forkoff) {
+			if (offset < dp->i_d.di_forkoff) 
+				return 0;
+			else 
+				return dp->i_d.di_forkoff;
+		} else
+			dsize = XFS_BMAP_BROOT_SPACE(dp->i_df.if_broot);
+		break;
+	}
+	
+	/* 
+	 * A data fork btree root must have space for at least 
+	 * MINDBTPTRS key/ptr pairs if the data fork is small or empty.
+	 */
+	minforkoff = MAX(dsize, XFS_BMDR_SPACE_CALC(MINDBTPTRS));
 	minforkoff = roundup(minforkoff, 8) >> 3;
 
 	/* attr fork btree root can have at least this many key/ptr pairs */
@@ -336,7 +372,8 @@ xfs_attr_shortform_remove(xfs_da_args_t *args)
 	 */
 	totsize -= size;
 	if (totsize == sizeof(xfs_attr_sf_hdr_t) && !args->addname &&
-	    (mp->m_flags & XFS_MOUNT_ATTR2)) {
+	    (mp->m_flags & XFS_MOUNT_ATTR2) && 
+	    (dp->i_d.di_format != XFS_DINODE_FMT_BTREE)) {
 		/*
 		 * Last attribute now removed, revert to original
 		 * inode format making all literal area available
@@ -355,7 +392,8 @@ xfs_attr_shortform_remove(xfs_da_args_t *args)
 		dp->i_d.di_forkoff = xfs_attr_shortform_bytesfit(dp, totsize);
 		ASSERT(dp->i_d.di_forkoff);
 		ASSERT(totsize > sizeof(xfs_attr_sf_hdr_t) || args->addname ||
-			!(mp->m_flags & XFS_MOUNT_ATTR2));
+			!(mp->m_flags & XFS_MOUNT_ATTR2) ||
+			dp->i_d.di_format == XFS_DINODE_FMT_BTREE);
 		dp->i_afp->if_ext_max =
 			XFS_IFORK_ASIZE(dp) / (uint)sizeof(xfs_bmbt_rec_t);
 		dp->i_df.if_ext_max =
@@ -748,6 +786,7 @@ xfs_attr_shortform_allfit(xfs_dabuf_t *bp, xfs_inode_t *dp)
 				+ be16_to_cpu(name_loc->valuelen);
 	}
 	if ((dp->i_mount->m_flags & XFS_MOUNT_ATTR2) &&
+	    (dp->i_d.di_format != XFS_DINODE_FMT_BTREE) &&
 	    (bytes == sizeof(struct xfs_attr_sf_hdr)))
 		return(-1);
 	return(xfs_attr_shortform_bytesfit(dp, bytes));
@@ -786,6 +825,7 @@ xfs_attr_leaf_to_shortform(xfs_dabuf_t *bp, xfs_da_args_t *args, int forkoff)
 
 	if (forkoff == -1) {
 		ASSERT(dp->i_mount->m_flags & XFS_MOUNT_ATTR2);
+		ASSERT(dp->i_d.di_format != XFS_DINODE_FMT_BTREE);
 
 		/*
 		 * Last attribute was removed, revert to original
@@ -3013,7 +3053,7 @@ xfs_attr_rolltrans(xfs_trans_t **transp, xfs_inode_t *dp)
 	 * is in progress. The caller takes the responsibility to cancel
 	 * the duplicate transaction that gets returned.
 	 */
-	if ((error = xfs_trans_commit(trans, 0, NULL)))
+	if ((error = xfs_trans_commit(trans, 0)))
 		return (error);
 
 	trans = *transp;