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crypto: engine - Handle the kthread worker using the new API

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Use the new API to create and destroy the crypto engine kthread
worker. The API hides some implementation details.

In particular, kthread_create_worker() allocates and initializes
struct kthread_worker. It runs the kthread the right way
and stores task_struct into the worker structure.

kthread_destroy_worker() flushes all pending works, stops
the kthread and frees the structure.

This patch does not change the existing behavior except for
dynamically allocating struct kthread_worker and storing
only the pointer of this structure.

It is compile tested only because I did not find an easy
way how to run the code. Well, it should be pretty safe
given the nature of the change.

Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Petr Mladek 2016-10-19 13:54:30 +02:00 • committed by Herbert Xu
parent 103600ab96
commit c4ca2b0b25
2 changed files with 13 additions and 19 deletions
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6
include/crypto/engine.h
View file

@ -43,8 +43,7 @@
* @prepare_hash_request: do some prepare if need before handle the current request
* @unprepare_hash_request: undo any work done by prepare_hash_request()
* @hash_one_request: do hash for current request
* @kworker: thread struct for request pump
* @kworker_task: pointer to task for request pump kworker thread
* @kworker: kthread worker struct for request pump
* @pump_requests: work struct for scheduling work to the request pump
* @priv_data: the engine private data
* @cur_req: the current request which is on processing
@ -78,8 +77,7 @@ struct crypto_engine {
int (*hash_one_request)(struct crypto_engine *engine,
struct ahash_request *req);
struct kthread_worker kworker;
struct task_struct *kworker_task;
struct kthread_worker *kworker;
struct kthread_work pump_requests;
void *priv_data;