diff options
| author | Nicholas Piggin <[email protected]> | 2022-11-26 19:59:23 +1000 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2022-12-02 17:48:49 +1100 |
| commit | bd48287b2cf4cd6e95576db3a94fd2a7cdf9832d (patch) | |
| tree | 533571715d41dceb7f80df1cc23ceeb8424deb58 /net/lapb/lapb_iface.c | |
| parent | 085f03311bcede99550e08a1f7cad41bf758b460 (diff) | |
powerpc/qspinlock: implement option to yield to previous node
Queued waiters which are not at the head of the queue don't spin on
the lock word but their qnode lock word, waiting for the previous queued
CPU to release them. Add an option which allows these waiters to yield
to the previous CPU if its vCPU is preempted.
Signed-off-by: Nicholas Piggin <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'net/lapb/lapb_iface.c')
0 files changed, 0 insertions, 0 deletions