Use memset() to null out the btrfs_delayed_ref_root of
btrfs_transaction instead of setting all the members to 0 by hand.

Signed-off-by: Alexandru Moise <00moses.alexande...@gmail.com>
---
Rather than setting each member of ->delayed_refs by hand we should
adhere to the practice of using memset() calls to fill those memory
locations with zeroes. We make an exception however for the rb_root
and atomic_t variable to make room for change in future delayed_refs
implementations.

 fs/btrfs/transaction.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 8f259b3..e4f7dcb 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -224,15 +224,11 @@ loop:
        cur_trans->start_time = get_seconds();
        cur_trans->dirty_bg_run = 0;
 
+       memset(&cur_trans->delayed_refs, 0, sizeof(cur_trans->delayed_refs));
+
        cur_trans->delayed_refs.href_root = RB_ROOT;
        cur_trans->delayed_refs.dirty_extent_root = RB_ROOT;
        atomic_set(&cur_trans->delayed_refs.num_entries, 0);
-       cur_trans->delayed_refs.num_heads_ready = 0;
-       cur_trans->delayed_refs.pending_csums = 0;
-       cur_trans->delayed_refs.num_heads = 0;
-       cur_trans->delayed_refs.flushing = 0;
-       cur_trans->delayed_refs.run_delayed_start = 0;
-       cur_trans->delayed_refs.qgroup_to_skip = 0;
 
        /*
         * although the tree mod log is per file system and not per transaction,
-- 
1.9.1

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