diff options
| author | Christian Borntraeger <[email protected]> | 2014-08-05 09:57:51 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <[email protected]> | 2014-08-06 11:44:43 +0200 |
| commit | 36e7fdaa1a04fcf65b864232e1af56a51c7814d6 (patch) | |
| tree | fdc1603d6ea44a5c9033f4d1804d982e23708b71 /net/lapb/lapb_subr.c | |
| parent | 152125b7a882df36a55a8eadbea6d0edf1461ee7 (diff) | |
s390/locking: Reenable optimistic spinning
commit 4badad352a6bb202ec68afa7a574c0bb961e5ebc (locking/mutex: Disable
optimistic spinning on some architectures) fenced spinning for
architectures without proper cmpxchg.
There is no need to disable mutex spinning on s390, though:
The instructions CS,CSG and friends provide the proper guarantees.
(We dont implement cmpxchg with locks).
Signed-off-by: Christian Borntraeger <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
Diffstat (limited to 'net/lapb/lapb_subr.c')
0 files changed, 0 insertions, 0 deletions