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, 5 insertions, 1 deletions

diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 275920e8a40d..b34702984225 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -792,7 +792,10 @@ int ocfs2_remove_refcount_tree(struct inode *inode, struct buffer_head *di_bh)
         if (le32_to_cpu(rb->rf_count) == 1) {
                 blk = le64_to_cpu(rb->rf_blkno);
                 bit = le16_to_cpu(rb->rf_suballoc_bit);
-                bg_blkno = ocfs2_which_suballoc_group(blk, bit);
+                if (rb->rf_suballoc_loc)
+                        bg_blkno = le64_to_cpu(rb->rf_suballoc_loc);
+                else
+                        bg_blkno = ocfs2_which_suballoc_group(blk, bit);
 
                 alloc_inode = ocfs2_get_system_file_inode(osb,
                                         EXTENT_ALLOC_SYSTEM_INODE,
@@ -2108,6 +2111,7 @@ static int ocfs2_remove_refcount_extent(handle_t *handle,
          */
         ret = ocfs2_cache_block_dealloc(dealloc, EXTENT_ALLOC_SYSTEM_INODE,
                                         le16_to_cpu(rb->rf_suballoc_slot),
+                                        le64_to_cpu(rb->rf_suballoc_loc),
                                         le64_to_cpu(rb->rf_blkno),
                                         le16_to_cpu(rb->rf_suballoc_bit));
         if (ret) {