---

yaml --- r: 178008 b: refs/heads/master c: 8bcd9b0 h: refs/heads/master v: v3
git-mirror · Dec 18, 2009 · 822d443 · 822d443
1 parent 5fc8317
commit 822d443
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Showing 4 changed files with 6 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7883097f1602c8cbb1da764a6ac43e0b8a7f56d9
+refs/heads/master: 8bcd9b04fdbab9cee4948501f8862af2a288f1b5
diff --git a/trunk/drivers/s390/cio/qdio_main.c b/trunk/drivers/s390/cio/qdio_main.c
@@ -486,7 +486,8 @@ static int get_inbound_buffer_frontier(struct qdio_q *q)
 	case SLSB_P_INPUT_PRIMED:
 		inbound_primed(q, count);
 		q->first_to_check = add_buf(q->first_to_check, count);
-		atomic_sub(count, &q->nr_buf_used);
+		if (atomic_sub(count, &q->nr_buf_used) == 0)
+			qdio_perf_stat_inc(&perf_stats.inbound_queue_full);
 		break;
 	case SLSB_P_INPUT_ERROR:
 		announce_buffer_error(q, count);

diff --git a/trunk/drivers/s390/cio/qdio_perf.c b/trunk/drivers/s390/cio/qdio_perf.c
@@ -64,6 +64,8 @@ static int qdio_perf_proc_show(struct seq_file *m, void *v)
 		   (long)atomic_long_read(&perf_stats.fast_requeue));
 	seq_printf(m, "Number of outbound target full condition\t: %li\n",
 		   (long)atomic_long_read(&perf_stats.outbound_target_full));
+	seq_printf(m, "Number of inbound queue full condition\t\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.inbound_queue_full));
 	seq_printf(m, "Number of outbound tasklet mod_timer calls\t: %li\n",
 		   (long)atomic_long_read(&perf_stats.debug_tl_out_timer));
 	seq_printf(m, "Number of stop polling calls\t\t\t: %li\n",

diff --git a/trunk/drivers/s390/cio/qdio_perf.h b/trunk/drivers/s390/cio/qdio_perf.h
@@ -36,6 +36,7 @@ struct qdio_perf_stats {
 	atomic_long_t outbound_handler;
 	atomic_long_t fast_requeue;
 	atomic_long_t outbound_target_full;
+	atomic_long_t inbound_queue_full;
 
 	/* for debugging */
 	atomic_long_t debug_tl_out_timer;