Btrfs: Add mount -o ssd, which includes optimizations for seek free storage

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index b6bbfc179c29..163c01a24498 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -57,6 +57,7 @@ static int join_transaction(struct btrfs_root *root)
                 BUG_ON(!cur_trans);
                 root->fs_info->generation++;
                 root->fs_info->running_transaction = cur_trans;
+                root->fs_info->last_alloc = 0;
                 cur_trans->num_writers = 1;
                 cur_trans->num_joined = 0;
                 cur_trans->transid = root->fs_info->generation;