]> git.baikalelectronics.ru Git - kernel.git/commit
selftests: vm: pkeys: use the correct page size on powerpc
authorSandipan Das <sandipan@linux.ibm.com>
Thu, 4 Jun 2020 23:52:50 +0000 (16:52 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 5 Jun 2020 02:06:27 +0000 (19:06 -0700)
commit0864b6ad9c0284084ae5ffad35c1b7fc7014d4ad
tree8ff78ff22035c148169266c8887439c52c01e464
parentbc6ad7c4767ac3598d87c4d64ccff1214fcf6957
selftests: vm: pkeys: use the correct page size on powerpc

Both 4K and 64K pages are supported on powerpc.  Parts of the selftest
code perform alignment computations based on the PAGE_SIZE macro which is
currently hardcoded to 64K for powerpc.  This causes some test failures on
kernels configured with 4K page size.

In some cases, we need to enforce function alignment on page size.  Since
this can only be done at build time, 64K is used as the alignment factor
as that also ensures 4K alignment.

Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Dave Hansen <dave.hansen@intel.com>
Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Ram Pai <linuxram@us.ibm.com>
Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michal Suchanek <msuchanek@suse.de>
Cc: Shuah Khan <shuah@kernel.org>
Link: http://lkml.kernel.org/r/5dcdfbf3353acdc90f315172e800b49f5ca21299.1585646528.git.sandipan@linux.ibm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
tools/testing/selftests/vm/pkey-powerpc.h
tools/testing/selftests/vm/protection_keys.c