The patch titled
Subject: lib/test_vmalloc.c: add parameter use_huge for fix_size_alloc_test
has been added to the -mm mm-unstable branch. Its filename is
add-parameter-huge-for-fix_size_alloc_test.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/add-parameter-huge-for-fix_size_alloc_test.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Qinglin Pan <panqinglin2020@xxxxxxxxxxx>
Subject: lib/test_vmalloc.c: add parameter use_huge for fix_size_alloc_test
Date: Mon, 12 Dec 2022 13:56:57 +0800
Add a parameter `use_huge' for fix_size_alloc_test(), which can be used to
test allocation vie vmalloc_huge for both functionality and performance.
Link: https://lkml.kernel.org/r/20221212055657.698420-1-panqinglin2020@xxxxxxxxxxx
Signed-off-by: Qinglin Pan <panqinglin2020@xxxxxxxxxxx>
Cc: "Uladzislau Rezki (Sony)" <urezki@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/test_vmalloc.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/lib/test_vmalloc.c~add-parameter-huge-for-fix_size_alloc_test
+++ a/lib/test_vmalloc.c
@@ -38,6 +38,9 @@ __param(int, test_loop_count, 1000000,
__param(int, nr_pages, 0,
"Set number of pages for fix_size_alloc_test(default: 1)");
+__param(bool, use_huge, false,
+ "Use vmalloc_huge in fix_size_alloc_test");
+
__param(int, run_test_mask, INT_MAX,
"Set tests specified in the mask.\n\n"
"\t\tid: 1, name: fix_size_alloc_test\n"
@@ -264,7 +267,10 @@ static int fix_size_alloc_test(void)
int i;
for (i = 0; i < test_loop_count; i++) {
- ptr = vmalloc((nr_pages > 0 ? nr_pages:1) * PAGE_SIZE);
+ if (use_huge)
+ ptr = vmalloc_huge((nr_pages > 0 ? nr_pages:1) * PAGE_SIZE, GFP_KERNEL);
+ else
+ ptr = vmalloc((nr_pages > 0 ? nr_pages:1) * PAGE_SIZE);
if (!ptr)
return -1;
_
Patches currently in -mm which might be from panqinglin2020@xxxxxxxxxxx are
add-parameter-huge-for-fix_size_alloc_test.patch
