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authorAndrea Arcangeli <aarcange@redhat.com>2015-09-22 14:59:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-22 15:09:53 -0700
commit1f5fee2cf232f9fac05b65f21107d2cf3c32092c (patch)
tree128e8442c6a20e983b9c7939b2e91c55e03f6df5 /net/core
parent56ed8f169e225dce1f9e40f6eee2e2dabe7d06fc (diff)
userfaultfd: selftest: avoid my_bcmp false positives with powerpc
Keep a non-zero placeholder after the count, for the my_bcmp comparison of the page against the zeropage. The lockless increment between 255 to 256 against a lockless my_bcmp could otherwise return false positives on ppc32le. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Tested-by: Michael Ellerman <mpe@ellerman.id.au> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Thierry Reding <treding@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/core')
0 files changed, 0 insertions, 0 deletions