ufs_getfrag_block(): we only grab ->truncate_mutex on block creation …

…path Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
mariux64 · Jun 9, 2017 · 006351a · 006351a
1 parent 940ef1a
commit 006351a
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
@@ -403,7 +403,9 @@ static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buff
 
 	if (!create) {
 		phys64 = ufs_frag_map(inode, offsets, depth);
-		goto out;
+		if (phys64)
+			map_bh(bh_result, sb, phys64 + frag);
+		return 0;
 	}
 
         /* This code entered only while writing ....? */