ocfs2: Don't relink cluster groups when allocating discontig block groups

We don't have enough credits, and the filesystem is in a full state
anyway.

Signed-off-by: Joel Becker <joel.becker@oracle.com>

diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index e5403acdb3f5b7a1c8a76edbb3379f72b0316993..5852a46647a2b5ab79189b8069cf481c977a2618 100644 (file)
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -606,6 +606,14 @@ ocfs2_block_group_alloc_discontig(handle_t *handle,
                goto bail;
        }
 
+       /*
+        * We're going to be grabbing from multiple cluster groups.
+        * We don't have enough credits to relink them all, and the
+        * cluster groups will be staying in cache for the duration of
+        * this operation.
+        */
+       ac->ac_allow_chain_relink = 0;
+
        /* Claim the first region */
        status = ocfs2_block_group_claim_bits(osb, handle, ac, min_bits,
                                              &bit_off, &num_bits);