Commit 7563fcbf authored by Zi Yan's avatar Zi Yan Committed by Andrew Morton
Browse files

selftests/mm: fix split_huge_page_test for folio_split() tests 

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.

Link: https://lkml.kernel.org/r/20250709012800.3225727-1-ziy@nvidia.com


Fixes: 80a5c494 ("selftests/mm: add tests for folio_split(), buddy allocator like split")
Signed-off-by: default avatarZi Yan <ziy@nvidia.com>
Tested-by: default avatarBaolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: default avatarLorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: default avatarDonet Tom <donettom@linux.ibm.com>
Tested-by : Donet Tom <donettom@linux.ibm.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Mariano Pache <npache@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 091a08b0

tools/testing/selftests/mm/split_huge_page_test.c

+2 −1
Original line number Diff line number Diff line
@@ -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++)