The following changes since commit 354d50e771451f510e5886275768abb63b602798:
Fix compilation without cgroups (2018-06-29 08:00:29 -0600)
are available in the git repository at:
git://git.kernel.dk/fio.git master
for you to fetch changes up to 19a8064ef4a2a826ee06ed061af970d1737cf840:
blktrace: just ignore zero byte traces (2018-07-04 14:59:18 -0600)
----------------------------------------------------------------
Jens Axboe (1):
blktrace: just ignore zero byte traces
blktrace.c | 11 ++++++++++-
debug.h | 1 +
2 files changed, 11 insertions(+), 1 deletion(-)
---
Diff of recent changes:
diff --git a/blktrace.c b/blktrace.c
index cda111a..36a7180 100644
--- a/blktrace.c
+++ b/blktrace.c
@@ -303,6 +303,11 @@ static void handle_trace_discard(struct thread_data *td,
queue_io_piece(td, ipo);
}
+static void dump_trace(struct blk_io_trace *t)
+{
+ log_err("blktrace: ignoring zero byte trace: action=%x\n", t->action);
+}
+
static void handle_trace_fs(struct thread_data *td, struct blk_io_trace *t,
unsigned long long ttime, unsigned long *ios,
unsigned int *rw_bs)
@@ -323,7 +328,11 @@ static void handle_trace_fs(struct thread_data *td, struct blk_io_trace *t,
return;
}
- assert(t->bytes);
+ if (!t->bytes) {
+ if (!fio_did_warn(FIO_WARN_BTRACE_ZERO))
+ dump_trace(t);
+ return;
+ }
if (t->bytes > rw_bs[rw])
rw_bs[rw] = t->bytes;
diff --git a/debug.h b/debug.h
index 8a8cf87..e5e8040 100644
--- a/debug.h
+++ b/debug.h
@@ -42,6 +42,7 @@ enum {
FIO_WARN_ZONED_BUG = 4,
FIO_WARN_IOLOG_DROP = 8,
FIO_WARN_FADVISE = 16,
+ FIO_WARN_BTRACE_ZERO = 32,
};
#ifdef FIO_INC_DEBUG
--
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