The crypto engine initializes its kworker thread to FIFO-99 (when requesting RT priority), reduce this to FIFO-50.
FIFO-99 is the very highest priority available to SCHED_FIFO and it not a suitable default; it would indicate the crypto work is the most important work on the machine. Cc: Herbert Xu <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: [email protected] Cc: [email protected] Cc: Thomas Gleixner <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> --- crypto/crypto_engine.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/crypto/crypto_engine.c +++ b/crypto/crypto_engine.c @@ -425,7 +425,7 @@ EXPORT_SYMBOL_GPL(crypto_engine_stop); */ struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt) { - struct sched_param param = { .sched_priority = MAX_RT_PRIO - 1 }; + struct sched_param param = { .sched_priority = MAX_RT_PRIO / 2 }; struct crypto_engine *engine; if (!dev)
