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selftests/mm: move pkey selftest helpers to pkey_util.c

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Patch series "selftests/mm: refactor pkey helpers and fix mmap error
handling", v10.

The main changes in this series are to refactor shared tracing and
assertion helpers into a common file, unify both pkey selftests on
pkey_assert() and per-test tracing for consistent diagnostics, and add
missing mmap() return checks with MAP_FAILED used throughout for
readability and consistency.


This patch (of 10):

Move pkey selftest debugging helpers into shared code so both pkey
selftests can use the same tracing and abort-hook logic.  Also fix
cat_into_file() to print file, not str, in the open() failure message.

Link: https://lore.kernel.org/20260706081600.3570203-1-lihongfu@kylinos.cn
Link: https://lore.kernel.org/20260706081600.3570203-2-lihongfu@kylinos.cn
Signed-off-by: Hongfu Li <lihongfu@kylinos.cn>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Liam R. Howlett (Oracle) <liam@infradead.org>
Reviewed-by: Kevin Brodsky <kevin.brodsky@arm.com>
Tested-by: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Joey Gouly <joey.gouly@arm.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Keith Lucas <keith.lucas@oracle.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Yury Khrustalev <yury.khrustalev@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Hongfu Li 2026-07-06 16:15:55 +08:00 • committed by Andrew Morton
commit e453129b4c
3 changed files with 93 additions and 88 deletions
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