X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=block%2Fblk-iolatency.c;h=c0545f9da549ce213e70963fe40cfec2af509bb0;hb=815409a12c0a9c0de17a910fd95fe11e1eb97f32;hp=d8b0d8bd132bcac8ac2bb6c5c8d1f625ef3a6b41;hpb=c7a5238ef68b98130fe36716bb3fa44502f56001;p=linux-2.6-microblaze.git

diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index d8b0d8bd132b..c0545f9da549 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -890,8 +890,7 @@ static int iolatency_print_limit(struct seq_file *sf, void *v)
 	return 0;
 }
 
-static size_t iolatency_ssd_stat(struct iolatency_grp *iolat, char *buf,
-				 size_t size)
+static bool iolatency_ssd_stat(struct iolatency_grp *iolat, struct seq_file *s)
 {
 	struct latency_stat stat;
 	int cpu;
@@ -906,39 +905,40 @@ static size_t iolatency_ssd_stat(struct iolatency_grp *iolat, char *buf,
 	preempt_enable();
 
 	if (iolat->rq_depth.max_depth == UINT_MAX)
-		return scnprintf(buf, size, " missed=%llu total=%llu depth=max",
-				 (unsigned long long)stat.ps.missed,
-				 (unsigned long long)stat.ps.total);
-	return scnprintf(buf, size, " missed=%llu total=%llu depth=%u",
-			 (unsigned long long)stat.ps.missed,
-			 (unsigned long long)stat.ps.total,
-			 iolat->rq_depth.max_depth);
+		seq_printf(s, " missed=%llu total=%llu depth=max",
+			(unsigned long long)stat.ps.missed,
+			(unsigned long long)stat.ps.total);
+	else
+		seq_printf(s, " missed=%llu total=%llu depth=%u",
+			(unsigned long long)stat.ps.missed,
+			(unsigned long long)stat.ps.total,
+			iolat->rq_depth.max_depth);
+	return true;
 }
 
-static size_t iolatency_pd_stat(struct blkg_policy_data *pd, char *buf,
-				size_t size)
+static bool iolatency_pd_stat(struct blkg_policy_data *pd, struct seq_file *s)
 {
 	struct iolatency_grp *iolat = pd_to_lat(pd);
 	unsigned long long avg_lat;
 	unsigned long long cur_win;
 
 	if (!blkcg_debug_stats)
-		return 0;
+		return false;
 
 	if (iolat->ssd)
-		return iolatency_ssd_stat(iolat, buf, size);
+		return iolatency_ssd_stat(iolat, s);
 
 	avg_lat = div64_u64(iolat->lat_avg, NSEC_PER_USEC);
 	cur_win = div64_u64(iolat->cur_win_nsec, NSEC_PER_MSEC);
 	if (iolat->rq_depth.max_depth == UINT_MAX)
-		return scnprintf(buf, size, " depth=max avg_lat=%llu win=%llu",
-				 avg_lat, cur_win);
-
-	return scnprintf(buf, size, " depth=%u avg_lat=%llu win=%llu",
-			 iolat->rq_depth.max_depth, avg_lat, cur_win);
+		seq_printf(s, " depth=max avg_lat=%llu win=%llu",
+			avg_lat, cur_win);
+	else
+		seq_printf(s, " depth=%u avg_lat=%llu win=%llu",
+			iolat->rq_depth.max_depth, avg_lat, cur_win);
+	return true;
 }
 
-
 static struct blkg_policy_data *iolatency_pd_alloc(gfp_t gfp,
 						   struct request_queue *q,
 						   struct blkcg *blkcg)