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>

1 files changed, 0 insertions, 8 deletions

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 046ee516074b..ce26c84af064 100644
--- 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;