[dm-devel] [PATCH 1/6] dm crypt: Use tasklet_setup().

[Sebastian Andrzej Siewior <bigeasy@linutronix.de>]

tasklet_setup() has the beauty of passing the argument as part of the
structure instead of an integer value which needs casting.

Use tasklet_setup().

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
 drivers/md/dm-crypt.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 68be387581a7e..506655e5eecba 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -2211,9 +2211,14 @@ static void kcryptd_crypt(struct work_struct *work)
 		kcryptd_crypt_write_convert(io);
 }
 
-static void kcryptd_crypt_tasklet(unsigned long work)
+static void kcryptd_crypt_tasklet(struct tasklet_struct *t)
 {
-	kcryptd_crypt((struct work_struct *)work);
+	struct dm_crypt_io *io = from_tasklet(io, t, tasklet);
+
+	if (bio_data_dir(io->base_bio) == READ)
+		kcryptd_crypt_read_convert(io);
+	else
+		kcryptd_crypt_write_convert(io);
 }
 
 static void kcryptd_queue_crypt(struct dm_crypt_io *io)
@@ -2228,7 +2233,7 @@ static void kcryptd_queue_crypt(struct dm_crypt_io *io)
 		 * it is being executed with irqs disabled.
 		 */
 		if (in_irq() || irqs_disabled()) {
-			tasklet_init(&io->tasklet, kcryptd_crypt_tasklet, (unsigned long)&io->work);
+			tasklet_setup(&io->tasklet, kcryptd_crypt_tasklet);
 			tasklet_schedule(&io->tasklet);
 			return;
 		}
-- 
2.30.0


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