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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-08-06 14:15:47 +0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-08-06 14:15:47 +0300 |
commit | 94fb1afb14c4f0ceb8c5508ddddac6819f662e95 (patch) | |
tree | 4988e5769dc7482caa7f441475ae31f50bbd37ef /drivers/s390/cio/qdio_main.c | |
parent | c4735d990268399da9133b0ad445e488ece009ad (diff) | |
parent | 47ec5303d73ea344e84f46660fff693c57641386 (diff) | |
download | linux-94fb1afb14c4f0ceb8c5508ddddac6819f662e95.tar.xz |
Mgerge remote-tracking branch 'torvalds/master' into perf/core
To sync headers, for instance, in this case tools/perf was ahead of
upstream till Linus merged tip/perf/core to get the
PERF_RECORD_TEXT_POKE changes:
Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'drivers/s390/cio/qdio_main.c')
-rw-r--r-- | drivers/s390/cio/qdio_main.c | 41 |
1 files changed, 4 insertions, 37 deletions
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 0c919a11a46e..4fab8bba2cdd 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -413,15 +413,8 @@ static inline void qdio_stop_polling(struct qdio_q *q) static inline void account_sbals(struct qdio_q *q, unsigned int count) { - int pos; - q->q_stats.nr_sbal_total += count; - if (count == QDIO_MAX_BUFFERS_MASK) { - q->q_stats.nr_sbals[7]++; - return; - } - pos = ilog2(count); - q->q_stats.nr_sbals[pos]++; + q->q_stats.nr_sbals[ilog2(count)]++; } static void process_buffer_error(struct qdio_q *q, unsigned int start, @@ -464,11 +457,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q, unsigned int start) q->timestamp = get_tod_clock_fast(); - /* - * Don't check 128 buffers, as otherwise qdio_inbound_q_moved - * would return 0. - */ - count = min(atomic_read(&q->nr_buf_used), QDIO_MAX_BUFFERS_MASK); + count = atomic_read(&q->nr_buf_used); if (!count) return 0; @@ -521,14 +510,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q, unsigned int start) static int qdio_inbound_q_moved(struct qdio_q *q, unsigned int start) { - int count; - - count = get_inbound_buffer_frontier(q, start); - - if (count && !is_thinint_irq(q->irq_ptr) && MACHINE_IS_LPAR) - q->u.in.timestamp = get_tod_clock(); - - return count; + return get_inbound_buffer_frontier(q, start); } static inline int qdio_inbound_q_done(struct qdio_q *q, unsigned int start) @@ -546,22 +528,7 @@ static inline int qdio_inbound_q_done(struct qdio_q *q, unsigned int start) /* more work coming */ return 0; - if (is_thinint_irq(q->irq_ptr)) - return 1; - - /* don't poll under z/VM */ - if (MACHINE_IS_VM) - return 1; - - /* - * At this point we know, that inbound first_to_check - * has (probably) not moved (see qdio_inbound_processing). - */ - if (get_tod_clock_fast() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) { - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in done:%02x", start); - return 1; - } else - return 0; + return 1; } static inline void qdio_handle_aobs(struct qdio_q *q, int start, int count) |