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| author |   Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> | 2016-10-14 14:34:51 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-12-14 16:33:39 +0100 |
| commit | e47de21dd35bad6d1e71482a66699cd04e83ea40 (patch) | |
| tree | 1089dd285e8cde50690b546db76285efa198b8cc /drivers/s390/crypto/ap_card.c | |
| parent | s390/zcrypt: Introduce new zcrypt device status API (diff) | |
| download | linux-dev-e47de21dd35bad6d1e71482a66699cd04e83ea40.tar.xz linux-dev-e47de21dd35bad6d1e71482a66699cd04e83ea40.zip | |
s390/zcrypt: Fixed attrition of AP adapters and domains
Currently the first eligible AP adapter respectively domain will be
selected to service requests. In case of sequential workload, the
very same adapter/domain will be used.
The adapter/domain selection algorithm now considers the completed
transactions per adaper/domain and therefore ensures a homogeneous
utilization.
Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/crypto/ap_card.c')
| -rw-r--r-- | drivers/s390/crypto/ap_card.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/s390/crypto/ap_card.c b/drivers/s390/crypto/ap_card.c index 731dc0dbfb75..0110d44172a3 100644 --- a/drivers/s390/crypto/ap_card.c +++ b/drivers/s390/crypto/ap_card.c @@ -63,13 +63,11 @@ static ssize_t ap_request_count_show(struct device *dev, char *buf) { struct ap_card *ac = to_ap_card(dev); - struct ap_queue *aq; unsigned int req_cnt; req_cnt = 0; spin_lock_bh(&ap_list_lock); - for_each_ap_queue(aq, ac) - req_cnt += aq->total_request_count; + req_cnt = atomic_read(&ac->total_request_count); spin_unlock_bh(&ap_list_lock); return snprintf(buf, PAGE_SIZE, "%d\n", req_cnt); } |