selftests/mm: uffd_open_{dev|sys}()

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Provide two helpers to open an uffd handle.  Drop the error checks around
SKIPs because it's inside an errexit() anyway, which IMHO doesn't really
help much if the test will not continue.

Link: https://lkml.kernel.org/r/20230412164254.328335-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reviewed-by: Axel Rasmussen <axelrasmussen@google.com>
Cc: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Zach O'Keefe <zokeefe@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

...

This commit is contained in:

Peter Xu 2023-04-12 12:42:54 -04:00 • committed by Andrew Morton

parent c4277cb6c8

commit 78391f6460

3 changed files with 31 additions and 23 deletions

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28

tools/testing/selftests/mm/uffd-common.c

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24

tools/testing/selftests/mm/vm_util.c

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2

tools/testing/selftests/mm/vm_util.h

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