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s390/pai: rename structure member users to active_events

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Rename structure member users to active_events to make it consistent
with PMU pai_ext. Also use the same prefix syntax for increment and
decrement operators in both PMUs.

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Thomas Richter 2022-10-20 11:55:52 +02:00 committed by Vasily Gorbik
parent d3db4ac3c7
commit 58354c7d35
1 changed files with 6 additions and 6 deletions
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12
arch/s390/kernel/perf_pai_crypto.c
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@ -35,7 +35,7 @@ struct pai_userdata {
struct paicrypt_map {
unsigned long *page; /* Page for CPU to store counters */
struct pai_userdata *save; /* Page to store no-zero counters */
unsigned int users; /* # of PAI crypto users */
unsigned int active_events; /* # of PAI crypto users */
unsigned int refcnt; /* Reference count mapped buffers */
enum paievt_mode mode; /* Type of event */
struct perf_event *event; /* Perf event for sampling */
@ -58,8 +58,8 @@ static void paicrypt_event_destroy(struct perf_event *event)
mutex_lock(&pai_reserve_mutex);
debug_sprintf_event(cfm_dbg, 5, "%s event %#llx cpu %d users %d"
" mode %d refcnt %d\n", __func__,
event->attr.config, event->cpu, cpump->users,
cpump->mode, cpump->refcnt);
event->attr.config, event->cpu,
cpump->active_events, cpump->mode, cpump->refcnt);
if (!--cpump->refcnt) {
debug_sprintf_event(cfm_dbg, 4, "%s page %#lx save %p\n",
__func__, (unsigned long)cpump->page,
@ -174,7 +174,7 @@ unlock:
}
debug_sprintf_event(cfm_dbg, 5, "%s sample_period %#llx users %d"
" mode %d refcnt %d page %#lx save %p rc %d\n",
__func__, a->sample_period, cpump->users,
__func__, a->sample_period, cpump->active_events,
cpump->mode, cpump->refcnt,
(unsigned long)cpump->page, cpump->save, rc);
mutex_unlock(&pai_reserve_mutex);
@ -260,7 +260,7 @@ static int paicrypt_add(struct perf_event *event, int flags)
struct paicrypt_map *cpump = this_cpu_ptr(&paicrypt_map);
unsigned long ccd;
if (cpump->users++ == 0) {
if (++cpump->active_events == 1) {
ccd = virt_to_phys(cpump->page) | PAI_CRYPTO_KERNEL_OFFSET;
WRITE_ONCE(S390_lowcore.ccd, ccd);
__ctl_set_bit(0, 50);
@ -291,7 +291,7 @@ static void paicrypt_del(struct perf_event *event, int flags)
if (!event->attr.sample_period)
/* Only counting needs to read counter */
paicrypt_stop(event, PERF_EF_UPDATE);
if (cpump->users-- == 1) {
if (--cpump->active_events == 0) {
__ctl_clear_bit(0, 50);
WRITE_ONCE(S390_lowcore.ccd, 0);
}