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| author |   Peter Zijlstra <a.p.zijlstra@chello.nl> | 2011-04-05 17:23:53 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2011-04-14 08:52:39 +0200 |
| commit | 8f42ced974df7d5af2de4cf5ea21fe978c7e4478 (patch) | |
| tree | 514ee978491dc62ee727308be1f228987c47eb54 /net/unix/af_unix.c | |
| parent | sched: Drop rq->lock from first part of wake_up_new_task() (diff) | |
| download | wireguard-linux-8f42ced974df7d5af2de4cf5ea21fe978c7e4478.tar.xz wireguard-linux-8f42ced974df7d5af2de4cf5ea21fe978c7e4478.zip | |
sched: Drop rq->lock from sched_exec()
Since we can now call select_task_rq() and set_task_cpu() with only
p->pi_lock held, and sched_exec() load-balancing has always been
optimistic, drop all rq->lock usage.
Oleg also noted that need_migrate_task() will always be true for
current, so don't bother calling that at all.
Reviewed-by: Frank Rowand <frank.rowand@am.sony.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20110405152729.314204889@chello.nl
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions