ocfs2: Free block to the right block group.

In case the block we are going to free is allocated from
a discontiguous block group, we have to use suballoc_loc
to be the right group.

Signed-off-by: Tao Ma <tao.ma@oracle.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 805167e226c1..a1cf195935cf 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -2466,7 +2466,10 @@ static int ocfs2_xattr_free_block(struct inode *inode,
         xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
         blk = le64_to_cpu(xb->xb_blkno);
         bit = le16_to_cpu(xb->xb_suballoc_bit);
-        bg_blkno = ocfs2_which_suballoc_group(blk, bit);
+        if (xb->xb_suballoc_loc)
+                bg_blkno = le64_to_cpu(xb->xb_suballoc_loc);
+        else
+                bg_blkno = ocfs2_which_suballoc_group(blk, bit);
 
         xb_alloc_inode = ocfs2_get_system_file_inode(osb,
                                 EXTENT_ALLOC_SYSTEM_INODE,