s390/zcrypt: get rid of ap_poll_requests

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The poll thread of the AP bus is burning CPU while waiting for
crypto requests to complete. We can as well burn a few more cycles
in the poll thread to check if there are pending requests and
remove the atomic operations with the ap_poll_requests.
This improves the code if the machine has adapter interrupts.

Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Martin Schwidefsky 2016-09-21 14:12:53 +02:00

parent 0db78559f9

commit 9af3e04ee4

1 changed files with 24 additions and 10 deletions

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34

drivers/s390/crypto/ap_bus.c

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