drbd: Move some functions to where they are used

Move drbd_update_congested() to drbd_main.c, and drbd_req_new() and
drbd_req_free() to drbd_req.c: those functions are not used anywhere
else.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 74179f7986e1..25fa87c95a10 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -56,6 +56,35 @@ static void _drbd_end_io_acct(struct drbd_conf *mdev, struct drbd_request *req)
         part_stat_unlock();
 }
 
+static struct drbd_request *drbd_req_new(struct drbd_conf *mdev,
+                                               struct bio *bio_src)
+{
+        struct drbd_request *req;
+
+        req = mempool_alloc(drbd_request_mempool, GFP_NOIO);
+        if (!req)
+                return NULL;
+
+        drbd_req_make_private_bio(req, bio_src);
+        req->rq_state    = bio_data_dir(bio_src) == WRITE ? RQ_WRITE : 0;
+        req->mdev        = mdev;
+        req->master_bio  = bio_src;
+        req->epoch       = 0;
+        drbd_clear_interval(&req->i);
+        req->i.sector     = bio_src->bi_sector;
+        req->i.size      = bio_src->bi_size;
+        INIT_LIST_HEAD(&req->tl_requests);
+        INIT_LIST_HEAD(&req->w.list);
+
+        return req;
+}
+
+static void drbd_req_free(struct drbd_request *req)
+{
+        mempool_free(req, drbd_request_mempool);
+}
+
+/* rw is bio_data_dir(), only READ or WRITE */
 static void _req_is_done(struct drbd_conf *mdev, struct drbd_request *req, const int rw)
 {
         const unsigned long s = req->rq_state;