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From: js1304@gmail.com
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Vlastimil Babka <vbabka@suse.cz>,
	mgorman@techsingularity.net, Minchan Kim <minchan@kernel.org>,
	Alexander Potapenko <glider@google.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>
Subject: [PATCH 5/6] tools/vm/page_owner: increase temporary buffer size
Date: Tue,  3 May 2016 14:23:03 +0900	[thread overview]
Message-ID: <1462252984-8524-6-git-send-email-iamjoonsoo.kim@lge.com> (raw)
In-Reply-To: <1462252984-8524-1-git-send-email-iamjoonsoo.kim@lge.com>

From: Joonsoo Kim <iamjoonsoo.kim@lge.com>

Page owner will be changed to store more deep stacktrace
so current temporary buffer size isn't enough. Increase it.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
---
 tools/vm/page_owner_sort.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/vm/page_owner_sort.c b/tools/vm/page_owner_sort.c
index 77147b4..f1c055f 100644
--- a/tools/vm/page_owner_sort.c
+++ b/tools/vm/page_owner_sort.c
@@ -79,12 +79,12 @@ static void add_list(char *buf, int len)
 	}
 }
 
-#define BUF_SIZE	1024
+#define BUF_SIZE	(128 * 1024)
 
 int main(int argc, char **argv)
 {
 	FILE *fin, *fout;
-	char buf[BUF_SIZE];
+	char *buf;
 	int ret, i, count;
 	struct block_list *list2;
 	struct stat st;
@@ -107,6 +107,11 @@ int main(int argc, char **argv)
 	max_size = st.st_size / 100; /* hack ... */
 
 	list = malloc(max_size * sizeof(*list));
+	buf = malloc(BUF_SIZE);
+	if (!list || !buf) {
+		printf("Out of memory\n");
+		exit(1);
+	}
 
 	for ( ; ; ) {
 		ret = read_block(buf, BUF_SIZE, fin);
-- 
1.9.1

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  parent reply	other threads:[~2016-05-03  5:23 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-03  5:22 [PATCH 0/6] mm/page_owner: use tackdepot to store stacktrace js1304
2016-05-03  5:22 ` [PATCH 1/6] mm/compaction: split freepages without holding the zone lock js1304
2016-05-10 14:56   ` Vlastimil Babka
2016-05-12  2:51     ` Joonsoo Kim
2016-05-03  5:23 ` [PATCH 2/6] mm/page_owner: initialize page owner " js1304
2016-05-10 15:00   ` Vlastimil Babka
2016-05-03  5:23 ` [PATCH 3/6] mm/page_owner: copy last_migrate_reason in copy_page_owner() js1304
2016-05-10 15:13   ` Vlastimil Babka
2016-05-12  2:58     ` Joonsoo Kim
2016-05-12  6:48       ` Vlastimil Babka
2016-05-03  5:23 ` [PATCH 4/6] mm/page_owner: introduce split_page_owner and replace manual handling js1304
2016-05-10 15:14   ` Vlastimil Babka
2016-05-03  5:23 ` js1304 [this message]
2016-05-03  5:23 ` [PATCH 6/6] mm/page_owner: use stackdepot to store stacktrace js1304
2016-05-03  8:53   ` Michal Hocko
2016-05-04  2:14     ` Joonsoo Kim
2016-05-04  2:35       ` Joonsoo Kim
2016-05-04  9:23         ` Michal Hocko
2016-05-04 15:31           ` Joonsoo Kim
2016-05-04  9:21       ` Michal Hocko
2016-05-04 15:30         ` Joonsoo Kim
2016-05-04 15:45           ` Joonsoo Kim
2016-05-04 19:41             ` Michal Hocko
2016-05-04 19:40           ` Michal Hocko
2016-05-10  7:07             ` Joonsoo Kim
2016-05-10  8:57               ` Michal Hocko
2016-05-12 11:57   ` Vlastimil Babka

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