tree fd71155100bd87456e041d7cecefdc6dd6ad1056
parent f61391ed6b9711b73aca7e84b230ee2b38075917
author Jan Stancek <jstancek@redhat.com> 1460546065 +0200
committer Jan Stancek <jstancek@redhat.com> 1461056621 +0200

tst_atomic: add atomic_add_return for x86/64, ppc/64 and s390/x

In case __sync_add_and_fetch is not provided by compiler, we
try to supply our own implementation.

It has been taken from kernel 4.5 sources, by compiling a small
piece of code (atomic_add_return()) with "gcc -E" and applying
some formatting to make it more readable/pretty.

Signed-off-by: Jan Stancek <jstancek@redhat.com>
Acked-by: Cyril Hrubis <chrubis@suse.cz>