Eric Lee / smarc-ti-linux-kernel

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Commit c73b7d02da9bfb4fadafc118a24ee868708839b6

Authored by Tejun Heo
Committed by Herbert Xu
1 parent 41f2977d40
Exists in master and in 20 other branches dlt-processor-sdk-linux-03.00.00.04, newt-ti-linux-3.12.y, processor-sdk-linux-01.00.00, processor-sdk-linux-02.00.01, smarc-ti-linux-3.12.10, smarc-ti-linux-3.12.y, smarc-ti-linux-3.14.y, smarc-ti-linux-3.15.y, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-04.01.00.06, smarct3x-processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-03.00.00.04, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-04.01.00.06, smarct4x-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-03.00.00.04, ti-linux-3.12.y, ti-linux-3.14.y, ti-linux-3.15.y, ti-lsk-linux-4.1.y

crypto: mark crypto workqueues CPU_INTENSIVE 

kcrypto_wq and pcrypt->wq's are used to run ciphers and may consume
considerable amount of CPU cycles.  Mark both as CPU_INTENSIVE so that
they don't block other work items.

As the workqueues are primarily used to burn CPU cycles, concurrency
levels shouldn't matter much and are left at 1.  A higher value may be
beneficial and needs investigation.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Showing 2 changed files with 4 additions and 2 deletions Side-by-side Diff

... ... @@ -20,7 +20,8 @@
20 20  
21 21 static int __init crypto_wq_init(void)
22 22 {
23   - kcrypto_wq = create_workqueue("crypto");
  23 + kcrypto_wq = alloc_workqueue("crypto",
  24 + WQ_MEM_RECLAIM | WQ_CPU_INTENSIVE, 1);
24 25 if (unlikely(!kcrypto_wq))
25 26 return -ENOMEM;
26 27 return 0;
... ... @@ -455,7 +455,8 @@
455 455  
456 456 get_online_cpus();
457 457  
458   - pcrypt->wq = create_workqueue(name);
  458 + pcrypt->wq = alloc_workqueue(name,
  459 + WQ_MEM_RECLAIM | WQ_CPU_INTENSIVE, 1);
459 460 if (!pcrypt->wq)
460 461 goto err;
461 462