diff options
| author | Holger Dengler <hd@linux.vnet.ibm.com> | 2011-11-14 11:19:04 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-11-14 11:19:09 +0100 |
| commit | bc615deaf35ab06e7fe5672b0efb3c7a0b2dcf1a (patch) | |
| tree | 6cd9c934c22361eeb628de2a54ed9f85705f5212 /drivers | |
| parent | 96603b505cb6c54782a27599afef65cc108ef5f2 (diff) | |
[S390] ap: Setup processing for messages in request queue.
Setup timer for processing messages in request queue, if sending an AP
message returns with reason code AP_RESPONSE_RESET_IN_PROGRESS.
Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/crypto/ap_bus.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index b77ae519d79c..ec94f049e995 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -1271,18 +1271,16 @@ ap_config_timeout(unsigned long ptr) } /** - * ap_schedule_poll_timer(): Schedule poll timer. + * __ap_schedule_poll_timer(): Schedule poll timer. * * Set up the timer to run the poll tasklet */ -static inline void ap_schedule_poll_timer(void) +static inline void __ap_schedule_poll_timer(void) { ktime_t hr_time; spin_lock_bh(&ap_poll_timer_lock); - if (ap_using_interrupts() || ap_suspend_flag) - goto out; - if (hrtimer_is_queued(&ap_poll_timer)) + if (hrtimer_is_queued(&ap_poll_timer) || ap_suspend_flag) goto out; if (ktime_to_ns(hrtimer_expires_remaining(&ap_poll_timer)) <= 0) { hr_time = ktime_set(0, poll_timeout); @@ -1294,6 +1292,18 @@ out: } /** + * ap_schedule_poll_timer(): Schedule poll timer. + * + * Set up the timer to run the poll tasklet + */ +static inline void ap_schedule_poll_timer(void) +{ + if (ap_using_interrupts()) + return; + __ap_schedule_poll_timer(); +} + +/** * ap_poll_read(): Receive pending reply messages from an AP device. * @ap_dev: pointer to the AP device * @flags: pointer to control flags, bit 2^0 is set if another poll is @@ -1374,8 +1384,9 @@ static int ap_poll_write(struct ap_device *ap_dev, unsigned long *flags) *flags |= 1; *flags |= 2; break; - case AP_RESPONSE_Q_FULL: case AP_RESPONSE_RESET_IN_PROGRESS: + __ap_schedule_poll_timer(); + case AP_RESPONSE_Q_FULL: *flags |= 2; break; case AP_RESPONSE_MESSAGE_TOO_BIG: |