From: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
Mel Gorman <mgorman@suse.de>,
Christoph Hellwig <hch@infradead.org>,
Matthew Wilcox <willy@infradead.org>,
Nicholas Piggin <npiggin@gmail.com>,
Uladzislau Rezki <urezki@gmail.com>,
Hillf Danton <hdanton@sina.com>, Michal Hocko <mhocko@suse.com>,
Oleksiy Avramchenko <oleksiy.avramchenko@sonymobile.com>,
Steven Rostedt <rostedt@goodmis.org>
Subject: [PATCH] lib/test_vmalloc.c: Add a new 'nr_pages' parameter
Date: Sat, 10 Jul 2021 21:41:51 +0200 [thread overview]
Message-ID: <20210710194151.21370-1-urezki@gmail.com> (raw)
In order to simulate different fixed sizes for vmalloc
allocation introduce a new parameter that sets number of
pages to be allocated for the "fix_size_alloc_test" test.
By default 1 page is used unless a different number is
specified over the new parameter.
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
---
lib/test_vmalloc.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/lib/test_vmalloc.c b/lib/test_vmalloc.c
index 01e9543de566..e14993bc84d2 100644
--- a/lib/test_vmalloc.c
+++ b/lib/test_vmalloc.c
@@ -35,6 +35,9 @@ __param(int, test_repeat_count, 1,
__param(int, test_loop_count, 1000000,
"Set test loop counter");
+__param(int, nr_pages, 0,
+ "Set number of pages for fix_size_alloc_test(default: 1)");
+
__param(int, run_test_mask, INT_MAX,
"Set tests specified in the mask.\n\n"
"\t\tid: 1, name: fix_size_alloc_test\n"
@@ -262,7 +265,7 @@ static int fix_size_alloc_test(void)
int i;
for (i = 0; i < test_loop_count; i++) {
- ptr = vmalloc(3 * PAGE_SIZE);
+ ptr = vmalloc((nr_pages > 0 ? nr_pages:1) * PAGE_SIZE);
if (!ptr)
return -1;
--
2.20.1
reply other threads:[~2021-07-10 19:42 UTC|newest]
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