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Wed, 9 Jul 2025 12:28:38 +0000 Received: from DM4PR10MB8218.namprd10.prod.outlook.com ([fe80::2650:55cf:2816:5f2]) by DM4PR10MB8218.namprd10.prod.outlook.com ([fe80::2650:55cf:2816:5f2%6]) with mapi id 15.20.8901.024; Wed, 9 Jul 2025 12:28:38 +0000 Date: Wed, 9 Jul 2025 13:28:36 +0100 From: Lorenzo Stoakes To: Zi Yan Cc: Andrew Morton , linux-mm@kvack.org, David Hildenbrand , Baolin Wang , "Liam R. Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Shuah Khan , linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] selftests/mm: fix split_huge_page_test for folio_split() tests. 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2025 at 09:27:59PM -0400, Zi Yan wrote: > PID_FMT does not have an offset field, so folio_split() tests are not > performed. Add PID_FMT_OFFSET with an offset field and use it to perform > folio_split() tests. > > Fixes: 80a5c494c89f ("selftests/mm: add tests for folio_split(), buddy allocator like split") > Signed-off-by: Zi Yan LGTM, so: Reviewed-by: Lorenzo Stoakes > --- > tools/testing/selftests/mm/split_huge_page_test.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/mm/split_huge_page_test.c b/tools/testing/selftests/mm/split_huge_page_test.c > index aa7400ed0e99..f0d9c035641d 100644 > --- a/tools/testing/selftests/mm/split_huge_page_test.c > +++ b/tools/testing/selftests/mm/split_huge_page_test.c > @@ -31,6 +31,7 @@ uint64_t pmd_pagesize; > #define INPUT_MAX 80 > > #define PID_FMT "%d,0x%lx,0x%lx,%d" > +#define PID_FMT_OFFSET "%d,0x%lx,0x%lx,%d,%d" > #define PATH_FMT "%s,0x%lx,0x%lx,%d" > > #define PFN_MASK ((1UL<<55)-1) > @@ -483,7 +484,7 @@ void split_thp_in_pagecache_to_order_at(size_t fd_size, const char *fs_loc, > write_debugfs(PID_FMT, getpid(), (uint64_t)addr, > (uint64_t)addr + fd_size, order); > else > - write_debugfs(PID_FMT, getpid(), (uint64_t)addr, > + write_debugfs(PID_FMT_OFFSET, getpid(), (uint64_t)addr, > (uint64_t)addr + fd_size, order, offset); > > for (i = 0; i < fd_size; i++) > -- > 2.47.2 >