kernel/tools/testing/selftests/powerpc/copyloops/stubs.S, branch linux-6.2.yHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-6.2.y2018-08-07T14:32:35Zselftests/powerpc/64: Test exception cases in copy_tofrom_user2018-08-07T14:32:35ZMichael Ellermanmpe@ellerman.id.au2018-08-03T10:13:05Zurn:sha1:2679f63fe5e4bb1459a0c20859a99c70c15d5ea1
This adds a set of test cases to test the behaviour of
copy_tofrom_user when exceptions are encountered accessing the
source or destination. Currently, copy_tofrom_user does not always
copy as many bytes as possible when an exception occurs on a store
to the destination, and that is reflected in failures in these tests.
Based on a test program from Anton Blanchard.
[paulus@ozlabs.org - test all three paths, wrote commit description,
made EX_TABLE create an exception table.]
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>