Call cond_resched() to let the scheduler reschedule the CPU at the end of each test pass. If the kernel is configured with CONFIG_PREEMPT_NONE=y (or preempt=none is used on the kernel command line), the only time the scheduler will intervene is when cond_resched() is called. So, repeated calls to modprobe tcrypt mode=<something> hold the CPU for a long time. Signed-off-by: Robert Elliott <elliott@xxxxxxx> --- crypto/tcrypt.c | 1 + 1 file changed, 1 insertion(+) diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index 3e9e4adeef02..916bddbf4e75 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -3027,6 +3027,7 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb) } + cond_resched(); return ret; } -- 2.38.1
