ocfs2: acknowledge return value of ocfs2_error()

Caveat: This may return -EROFS for a read case, which seems wrong.  This
is happening even without this patch series though.  Should we convert
EROFS to EIO?

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 18 insertions, 24 deletions

diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 7dc818b..b404dbd 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -102,32 +102,32 @@ static int ocfs2_validate_refcount_block(struct super_block *sb,
 
 
 	if (!OCFS2_IS_VALID_REFCOUNT_BLOCK(rb)) {
-		ocfs2_error(sb,
+		rc = ocfs2_error(sb,
 			    "Refcount block #%llu has bad signature %.*s",
 			    (unsigned long long)bh->b_blocknr, 7,
 			    rb->rf_signature);
-		return -EINVAL;
+		goto out;
 	}
 
 	if (le64_to_cpu(rb->rf_blkno) != bh->b_blocknr) {
-		ocfs2_error(sb,
+		rc = ocfs2_error(sb,
 			    "Refcount block #%llu has an invalid rf_blkno "
 			    "of %llu",
 			    (unsigned long long)bh->b_blocknr,
 			    (unsigned long long)le64_to_cpu(rb->rf_blkno));
-		return -EINVAL;
+		goto out;
 	}
 
 	if (le32_to_cpu(rb->rf_fs_generation) != OCFS2_SB(sb)->fs_generation) {
-		ocfs2_error(sb,
+		rc = ocfs2_error(sb,
 			    "Refcount block #%llu has an invalid "
 			    "rf_fs_generation of #%u",
 			    (unsigned long long)bh->b_blocknr,
 			    le32_to_cpu(rb->rf_fs_generation));
-		return -EINVAL;
+		goto out;
 	}
-
-	return 0;
+out:
+	return rc;
 }
 
 static int ocfs2_read_refcount_block(struct ocfs2_caching_info *ci,
@@ -1102,12 +1102,11 @@ static int ocfs2_get_refcount_rec(struct ocfs2_caching_info *ci,
 		el = &eb->h_list;
 
 		if (el->l_tree_depth) {
-			ocfs2_error(sb,
-			"refcount tree %llu has non zero tree "
-			"depth in leaf btree tree block %llu\n",
-			(unsigned long long)ocfs2_metadata_cache_owner(ci),
-			(unsigned long long)eb_bh->b_blocknr);
-			ret = -EROFS;
+			ret = ocfs2_error(sb,
+				"refcount tree %llu has non zero tree "
+				"depth in leaf btree tree block %llu\n",
+				(unsigned long long)ocfs2_metadata_cache_owner(ci),
+				(unsigned long long)eb_bh->b_blocknr);
 			goto out;
 		}
 	}
@@ -2359,10 +2358,9 @@ static int ocfs2_mark_extent_refcounted(struct inode *inode,
 					   cpos, len, phys);
 
 	if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb))) {
-		ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
+		ret = ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
 			    "tree, but the feature bit is not set in the "
 			    "super block.", inode->i_ino);
-		ret = -EROFS;
 		goto out;
 	}
 
@@ -2545,10 +2543,9 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode,
 	u64 start_cpos = ocfs2_blocks_to_clusters(inode->i_sb, phys_blkno);
 
 	if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb))) {
-		ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
+		ret = ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
 			    "tree, but the feature bit is not set in the "
 			    "super block.", inode->i_ino);
-		ret = -EROFS;
 		goto out;
 	}
 
@@ -2672,11 +2669,10 @@ static int ocfs2_refcount_cal_cow_clusters(struct inode *inode,
 		el = &eb->h_list;
 
 		if (el->l_tree_depth) {
-			ocfs2_error(inode->i_sb,
+			ret = ocfs2_error(inode->i_sb,
 				    "Inode %lu has non zero tree depth in "
 				    "leaf block %llu\n", inode->i_ino,
 				    (unsigned long long)eb_bh->b_blocknr);
-			ret = -EROFS;
 			goto out;
 		}
 	}
@@ -3106,11 +3102,10 @@ static int ocfs2_clear_ext_refcount(handle_t *handle,
 
 	index = ocfs2_search_extent_list(el, cpos);
 	if (index == -1) {
-		ocfs2_error(sb,
+		ret = ocfs2_error(sb,
 			    "Inode %llu has an extent at cpos %u which can no "
 			    "longer be found.\n",
 			    (unsigned long long)ino, cpos);
-		ret = -EROFS;
 		goto out;
 	}
 
@@ -3376,10 +3371,9 @@ static int ocfs2_replace_cow(struct ocfs2_cow_context *context)
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
 	if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb))) {
-		ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
+		return ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
 			    "tree, but the feature bit is not set in the "
 			    "super block.", inode->i_ino);
-		return -EROFS;
 	}
 
 	ocfs2_init_dealloc_ctxt(&context->dealloc);