dm crypt: remove waitqueue

Remove waitqueue no longer needed with the async crypto interface.

Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 046ee51..ce26c84 100644 (file)
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -94,7 +94,6 @@ struct crypt_config {
 
        struct workqueue_struct *io_queue;
        struct workqueue_struct *crypt_queue;
-       wait_queue_head_t writeq;
 
        /*
         * crypto related data
@@ -656,10 +655,7 @@ static void kcryptd_io_read(struct dm_crypt_io *io)
 static void kcryptd_io_write(struct dm_crypt_io *io)
 {
        struct bio *clone = io->ctx.bio_out;
-       struct crypt_config *cc = io->target->private;
-
        generic_make_request(clone);
-       wake_up(&cc->writeq);
 }
 
 static void kcryptd_io(struct work_struct *work)
@@ -791,9 +787,6 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io)
 
                        io = new_io;
                }
-
-               if (unlikely(remaining))
-                       wait_event(cc->writeq, !atomic_read(&io->ctx.pending));
        }
 
        crypt_dec_pending(io);
@@ -1120,7 +1113,6 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
                goto bad_crypt_queue;
        }
 
-       init_waitqueue_head(&cc->writeq);
        ti->private = cc;
        return 0;