This is a note to let you know that I've just added the patch titled
lib/test_meminit: allocate pages up to order MAX_ORDER
to the 6.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
lib-test_meminit-allocate-pages-up-to-order-max_order.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From efb78fa86e95832b78ca0ba60f3706788a818938 Mon Sep 17 00:00:00 2001
From: Andrew Donnellan <ajd@xxxxxxxxxxxxx>
Date: Fri, 14 Jul 2023 11:52:38 +1000
Subject: lib/test_meminit: allocate pages up to order MAX_ORDER
From: Andrew Donnellan <ajd@xxxxxxxxxxxxx>
commit efb78fa86e95832b78ca0ba60f3706788a818938 upstream.
test_pages() tests the page allocator by calling alloc_pages() with
different orders up to order 10.
However, different architectures and platforms support different maximum
contiguous allocation sizes. The default maximum allocation order
(MAX_ORDER) is 10, but architectures can use CONFIG_ARCH_FORCE_MAX_ORDER
to override this. On platforms where this is less than 10, test_meminit()
will blow up with a WARN(). This is expected, so let's not do that.
Replace the hardcoded "10" with the MAX_ORDER macro so that we test
allocations up to the expected platform limit.
Link: https://lkml.kernel.org/r/20230714015238.47931-1-ajd@xxxxxxxxxxxxx
Fixes: 5015a300a522 ("lib: introduce test_meminit module")
Signed-off-by: Andrew Donnellan <ajd@xxxxxxxxxxxxx>
Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Xiaoke Wang <xkernel.wang@xxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
lib/test_meminit.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/lib/test_meminit.c
+++ b/lib/test_meminit.c
@@ -93,7 +93,7 @@ static int __init test_pages(int *total_
int failures = 0, num_tests = 0;
int i;
- for (i = 0; i < 10; i++)
+ for (i = 0; i <= MAX_ORDER; i++)
num_tests += do_alloc_pages_order(i, &failures);
REPORT_FAILURES_IN_FN();
Patches currently in stable-queue which might be from ajd@xxxxxxxxxxxxx are
queue-6.5/lib-test_meminit-allocate-pages-up-to-order-max_order.patch
