[PATCH v3 14/30] xfsprogs: get directory offset when removing directory name

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Return the directory offset information when removing an entry to the
directory.

This offset will be used as the parent pointer offset in xfs_remove.

[dchinner: forward ported and cleaned up]
[achender: rebased, changed __unint32_t to xfs_dir2_dataptr_t,
       Changed typedefs to raw struct types]

Signed-off-by: Mark Tinguely <tinguely@xxxxxxx>
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Allison Henderson <allison.henderson@xxxxxxxxxx>
---
 libxfs/xfs_dir2.c       | 6 +++++-
 libxfs/xfs_dir2.h       | 3 ++-
 libxfs/xfs_dir2_block.c | 4 ++--
 libxfs/xfs_dir2_leaf.c  | 5 +++--
 libxfs/xfs_dir2_node.c  | 5 +++--
 libxfs/xfs_dir2_sf.c    | 2 ++
 6 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/libxfs/xfs_dir2.c b/libxfs/xfs_dir2.c
index af6f4b1..0093417 100644
--- a/libxfs/xfs_dir2.c
+++ b/libxfs/xfs_dir2.c
@@ -420,7 +420,8 @@ xfs_dir_removename(
 	struct xfs_inode	*dp,
 	struct xfs_name		*name,
 	xfs_ino_t		ino,
-	xfs_extlen_t		total)		/* bmap's total block count */
+	xfs_extlen_t		total,		/* bmap's total block count */
+	xfs_dir2_dataptr_t	*offset)	/* OUT: offset in directory */
 {
 	struct xfs_da_args	*args;
 	int			rval;
@@ -465,6 +466,9 @@ xfs_dir_removename(
 	else
 		rval = xfs_dir2_node_removename(args);
 out_free:
+	if (offset)
+		*offset = args->offset;
+
 	kmem_free(args);
 	return rval;
 }
diff --git a/libxfs/xfs_dir2.h b/libxfs/xfs_dir2.h
index c164a38..2cf1d87 100644
--- a/libxfs/xfs_dir2.h
+++ b/libxfs/xfs_dir2.h
@@ -123,7 +123,8 @@ extern int xfs_dir_lookup(struct xfs_trans *tp, struct xfs_inode *dp,
 				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_extlen_t tot);
+				xfs_extlen_t tot,
+				xfs_dir2_dataptr_t *offset);
 extern int xfs_dir_replace(struct xfs_trans *tp, struct xfs_inode *dp,
 				struct xfs_name *name, xfs_ino_t inum,
 				xfs_extlen_t tot);
diff --git a/libxfs/xfs_dir2_block.c b/libxfs/xfs_dir2_block.c
index e52344a..514b3fc 100644
--- a/libxfs/xfs_dir2_block.c
+++ b/libxfs/xfs_dir2_block.c
@@ -782,9 +782,9 @@ xfs_dir2_block_removename(
 	/*
 	 * Point to the data entry using the leaf entry.
 	 */
+	args->offset = be32_to_cpu(blp[ent].address);
 	dep = (xfs_dir2_data_entry_t *)((char *)hdr +
-			xfs_dir2_dataptr_to_off(args->geo,
-						be32_to_cpu(blp[ent].address)));
+			xfs_dir2_dataptr_to_off(args->geo, args->offset));
 	/*
 	 * Mark the data entry's space free.
 	 */
diff --git a/libxfs/xfs_dir2_leaf.c b/libxfs/xfs_dir2_leaf.c
index df1a214..21906b1 100644
--- a/libxfs/xfs_dir2_leaf.c
+++ b/libxfs/xfs_dir2_leaf.c
@@ -1399,9 +1399,10 @@ xfs_dir2_leaf_removename(
 	 * Point to the leaf entry, use that to point to the data entry.
 	 */
 	lep = &ents[index];
-	db = xfs_dir2_dataptr_to_db(args->geo, be32_to_cpu(lep->address));
+	args->offset = be32_to_cpu(lep->address);
+	db = xfs_dir2_dataptr_to_db(args->geo, args->offset);
 	dep = (xfs_dir2_data_entry_t *)((char *)hdr +
-		xfs_dir2_dataptr_to_off(args->geo, be32_to_cpu(lep->address)));
+		xfs_dir2_dataptr_to_off(args->geo, args->offset));
 	needscan = needlog = 0;
 	oldbest = be16_to_cpu(bf[0].length);
 	ltp = xfs_dir2_leaf_tail_p(args->geo, leaf);
diff --git a/libxfs/xfs_dir2_node.c b/libxfs/xfs_dir2_node.c
index 286c50e..8a6cee1 100644
--- a/libxfs/xfs_dir2_node.c
+++ b/libxfs/xfs_dir2_node.c
@@ -1235,9 +1235,10 @@ xfs_dir2_leafn_remove(
 	/*
 	 * Extract the data block and offset from the entry.
 	 */
-	db = xfs_dir2_dataptr_to_db(args->geo, be32_to_cpu(lep->address));
+	args->offset = be32_to_cpu(lep->address);
+	db = xfs_dir2_dataptr_to_db(args->geo, args->offset);
 	ASSERT(dblk->blkno == db);
-	off = xfs_dir2_dataptr_to_off(args->geo, be32_to_cpu(lep->address));
+	off = xfs_dir2_dataptr_to_off(args->geo, args->offset);
 	ASSERT(dblk->index == off);
 
 	/*
diff --git a/libxfs/xfs_dir2_sf.c b/libxfs/xfs_dir2_sf.c
index e4a1519..70808c9 100644
--- a/libxfs/xfs_dir2_sf.c
+++ b/libxfs/xfs_dir2_sf.c
@@ -903,6 +903,8 @@ xfs_dir2_sf_removename(
 								XFS_CMP_EXACT) {
 			ASSERT(dp->d_ops->sf_get_ino(sfp, sfep) ==
 			       args->inumber);
+			args->offset = xfs_dir2_byte_to_dataptr(
+						xfs_dir2_sf_get_offset(sfep));
 			break;
 		}
 	}
-- 
2.7.4




[Index of Archives]     [XFS Filesystem Development (older mail)]     [Linux Filesystem Development]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux RAID]     [Linux SCSI]


  Powered by Linux