diff options
| author | Joel Stanley <joel@jms.id.au> | 2016-11-21 02:38:38 +0300 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2016-11-21 02:38:47 +0300 |
| commit | c55cf1296a0429d91b940a49a59977617a4e4cb3 (patch) | |
| tree | 11d7ae008a0ad5bfe4110966b6df7c44cff723fd /drivers/md/dm-crypt.c | |
| parent | 5509e6ee766f6b910c3b81c02bae291fc1d9a806 (diff) | |
| parent | 86429bd405de5741df4127096deae0b1d90b68f1 (diff) | |
| download | linux-dev-4.4.tar.xz | |
Merge tag 'v4.4.33' into dev-4.4openbmc-4.4-20161121-1dev-4.4
This is the 4.4.33 stable release
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'drivers/md/dm-crypt.c')
| -rw-r--r-- | drivers/md/dm-crypt.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 51eda7235e32..5cac11d7a876 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -112,8 +112,7 @@ struct iv_tcw_private { * and encrypts / decrypts at the same time. */ enum flags { DM_CRYPT_SUSPENDED, DM_CRYPT_KEY_VALID, - DM_CRYPT_SAME_CPU, DM_CRYPT_NO_OFFLOAD, - DM_CRYPT_EXIT_THREAD}; + DM_CRYPT_SAME_CPU, DM_CRYPT_NO_OFFLOAD }; /* * The fields in here must be read only after initialization. @@ -1204,18 +1203,20 @@ continue_locked: if (!RB_EMPTY_ROOT(&cc->write_tree)) goto pop_from_list; - if (unlikely(test_bit(DM_CRYPT_EXIT_THREAD, &cc->flags))) { - spin_unlock_irq(&cc->write_thread_wait.lock); - break; - } - - __set_current_state(TASK_INTERRUPTIBLE); + set_current_state(TASK_INTERRUPTIBLE); __add_wait_queue(&cc->write_thread_wait, &wait); spin_unlock_irq(&cc->write_thread_wait.lock); + if (unlikely(kthread_should_stop())) { + set_task_state(current, TASK_RUNNING); + remove_wait_queue(&cc->write_thread_wait, &wait); + break; + } + schedule(); + set_task_state(current, TASK_RUNNING); spin_lock_irq(&cc->write_thread_wait.lock); __remove_wait_queue(&cc->write_thread_wait, &wait); goto continue_locked; @@ -1530,13 +1531,8 @@ static void crypt_dtr(struct dm_target *ti) if (!cc) return; - if (cc->write_thread) { - spin_lock_irq(&cc->write_thread_wait.lock); - set_bit(DM_CRYPT_EXIT_THREAD, &cc->flags); - wake_up_locked(&cc->write_thread_wait); - spin_unlock_irq(&cc->write_thread_wait.lock); + if (cc->write_thread) kthread_stop(cc->write_thread); - } if (cc->io_queue) destroy_workqueue(cc->io_queue); |