[PATCH 4/5] xfs: factor out a xfs_dir_replace_args helper

[Christoph Hellwig <hch@xxxxxx>]

Add a helper to switch between the different directory formats for
removing a directory entry.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 fs/xfs/libxfs/xfs_dir2.c  | 49 +++++++++++++++++++++------------------
 fs/xfs/libxfs/xfs_dir2.h  |  1 +
 fs/xfs/scrub/dir_repair.c | 19 +--------------
 3 files changed, 28 insertions(+), 41 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c
index 76aa11ade2e92d..d3d4d80c2098d3 100644
--- a/fs/xfs/libxfs/xfs_dir2.c
+++ b/fs/xfs/libxfs/xfs_dir2.c
@@ -505,6 +505,31 @@ xfs_dir_removename(
 	return rval;
 }
 
+int
+xfs_dir_replace_args(
+	struct xfs_da_args	*args)
+{
+	bool			is_block, is_leaf;
+	int			error;
+
+	if (args->dp->i_df.if_format == XFS_DINODE_FMT_LOCAL)
+		return xfs_dir2_sf_replace(args);
+
+	error = xfs_dir2_isblock(args, &is_block);
+	if (error)
+		return error;
+	if (is_block)
+		return xfs_dir2_block_replace(args);
+
+	error = xfs_dir2_isleaf(args, &is_leaf);
+	if (error)
+		return error;
+	if (is_leaf)
+		return xfs_dir2_leaf_replace(args);
+
+	return xfs_dir2_node_replace(args);
+}
+
 /*
  * Replace the inode number of a directory entry.
  */
@@ -518,7 +543,6 @@ xfs_dir_replace(
 {
 	struct xfs_da_args	*args;
 	int			rval;
-	bool			v;
 
 	ASSERT(S_ISDIR(VFS_I(dp)->i_mode));
 
@@ -541,28 +565,7 @@ xfs_dir_replace(
 	args->whichfork = XFS_DATA_FORK;
 	args->trans = tp;
 	args->owner = dp->i_ino;
-
-	if (dp->i_df.if_format == XFS_DINODE_FMT_LOCAL) {
-		rval = xfs_dir2_sf_replace(args);
-		goto out_free;
-	}
-
-	rval = xfs_dir2_isblock(args, &v);
-	if (rval)
-		goto out_free;
-	if (v) {
-		rval = xfs_dir2_block_replace(args);
-		goto out_free;
-	}
-
-	rval = xfs_dir2_isleaf(args, &v);
-	if (rval)
-		goto out_free;
-	if (v)
-		rval = xfs_dir2_leaf_replace(args);
-	else
-		rval = xfs_dir2_node_replace(args);
-out_free:
+	rval = xfs_dir_replace_args(args);
 	kfree(args);
 	return rval;
 }
diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h
index 3db54801d69ecd..6c00fe24a8987e 100644
--- a/fs/xfs/libxfs/xfs_dir2.h
+++ b/fs/xfs/libxfs/xfs_dir2.h
@@ -69,6 +69,7 @@ extern int xfs_dir_canenter(struct xfs_trans *tp, struct xfs_inode *dp,
 int xfs_dir_lookup_args(struct xfs_da_args *args);
 int xfs_dir_createname_args(struct xfs_da_args *args);
 int xfs_dir_removename_args(struct xfs_da_args *args);
+int xfs_dir_replace_args(struct xfs_da_args *args);
 
 /*
  * Direct call from the bmap code, bypassing the generic directory layer.
diff --git a/fs/xfs/scrub/dir_repair.c b/fs/xfs/scrub/dir_repair.c
index ce22c0d3571d2d..09fd0b76516e03 100644
--- a/fs/xfs/scrub/dir_repair.c
+++ b/fs/xfs/scrub/dir_repair.c
@@ -1534,7 +1534,6 @@ xrep_dir_replace(
 	xfs_extlen_t		total)
 {
 	struct xfs_scrub	*sc = rd->sc;
-	bool			is_block, is_leaf;
 	int			error;
 
 	ASSERT(S_ISDIR(VFS_I(dp)->i_mode));
@@ -1546,23 +1545,7 @@ xrep_dir_replace(
 	xrep_dir_init_args(rd, dp, name);
 	rd->args.inumber = inum;
 	rd->args.total = total;
-
-	if (dp->i_df.if_format == XFS_DINODE_FMT_LOCAL)
-		return xfs_dir2_sf_replace(&rd->args);
-
-	error = xfs_dir2_isblock(&rd->args, &is_block);
-	if (error)
-		return error;
-	if (is_block)
-		return xfs_dir2_block_replace(&rd->args);
-
-	error = xfs_dir2_isleaf(&rd->args, &is_leaf);
-	if (error)
-		return error;
-	if (is_leaf)
-		return xfs_dir2_leaf_replace(&rd->args);
-
-	return xfs_dir2_node_replace(&rd->args);
+	return xfs_dir_replace_args(&rd->args);
 }
 
 /*
-- 
2.39.2