+ lib-test_vmallocc-add-a-new-nr_pages-parameter.patch added to -mm tree

+ lib-test_vmallocc-add-a-new-nr_pages-parameter.patch added to -mm tree

[akpm]

The patch titled
     Subject: lib/test_vmalloc.c: add a new 'nr_pages' parameter
has been added to the -mm tree.  Its filename is
     lib-test_vmallocc-add-a-new-nr_pages-parameter.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/lib-test_vmallocc-add-a-new-nr_pages-parameter.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/lib-test_vmallocc-add-a-new-nr_pages-parameter.patch

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------------------------------------------------------
From: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Subject: lib/test_vmalloc.c: add a new 'nr_pages' parameter

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.

Link: https://lkml.kernel.org/r/20210710194151.21370-1-urezki@gmail.com
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oleksiy Avramchenko <oleksiy.avramchenko@sonymobile.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/test_vmalloc.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/lib/test_vmalloc.c~lib-test_vmallocc-add-a-new-nr_pages-parameter
+++ a/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;
_

Patches currently in -mm which might be from urezki@gmail.com are

mm-vmalloc-use-batched-page-requests-in-bulk-allocator.patch
mm-vmalloc-remove-gfpflags_allow_blocking-check.patch
lib-test_vmallocc-add-a-new-nr_pages-parameter.patch