From 33b560191981ef2669d6a5d36a870c29ad23fbc4 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@wiggum>
Date: Mon, 5 Sep 2005 16:35:10 +0200
Subject: [PATCH] [PATCH] Move open of logging file

It should not be in the sorting, move it to the dumping place instead.
---
 blkparse.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/blkparse.c b/blkparse.c
index 14b5b02..37f9ae3 100644
--- a/blkparse.c
+++ b/blkparse.c
@@ -159,7 +159,7 @@ static void output(struct per_cpu_info *pci, char *s)
 	printf("%s", s);
 
 	if (pci->ofp)
-		fprintf(pci->ofp,"%s",s);
+		fprintf(pci->ofp, "%s", s);
 }
 
 static char hstring[256];
@@ -333,6 +333,17 @@ static int dump_trace(struct blk_io_trace *t, struct per_cpu_info *pci)
 {
 	int ret = 0;
 
+	if (output_name && !pci->ofp) {
+		snprintf(pci->ofname, sizeof(pci->ofname) - 1,
+				"%s_log.%d", output_name, pci->cpu);
+
+		pci->ofp = fopen(pci->ofname, "w");
+		if (pci->ofp == NULL) {
+			perror(pci->ofname);
+			return 1;
+		}
+	}
+
 	if (t->action & BLK_TC_ACT(BLK_TC_PC))
 		ret = dump_trace_pc(t, pci);
 	else
@@ -444,17 +455,6 @@ static int sort_entries(void *traces, unsigned long offset, int nr)
 
 		pci = &per_cpu_info[bit->cpu];
 
-		if (output_name && !pci->ofp) {
-			snprintf(pci->ofname, sizeof(pci->ofname) - 1,
-					"%s_log.%d", output_name, bit->cpu);
-
-			pci->ofp = fopen(pci->ofname, "w");
-			if (pci->ofp == NULL) {
-				perror(pci->ofname);
-				break;
-			}
-		}
-
 		pci->nelems++;
 
 		if (trace_rb_insert(t))
-- 
2.25.1