diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2014-04-11 09:59:13 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-05-08 09:16:54 +0200 |
| commit | b3a8cb18ce284b5c47517b681c42fcb9d8a99992 (patch) | |
| tree | b4d3e381192a686767d2e2cdc0a7d705d0ad53a4 /ipc/mq_sysctl.c | |
| parent | 2a705ad65c9c393df1a684c780f890a29aab1128 (diff) | |
sched/idle, tile: Switch from TS_POLLING to TIF_POLLING_NRFLAG
Standardize the idle polling indicator to TIF_POLLING_NRFLAG such that
both TIF_NEED_RESCHED and TIF_POLLING_NRFLAG are in the same word.
This will allow us, using fetch_or(), to both set NEED_RESCHED and
check for POLLING_NRFLAG in a single operation and avoid pointless
wakeups.
Changing from the non-atomic thread_info::status flags to the atomic
thread_info::flags shouldn't be a big issue since most polling state
changes were followed/preceded by a full memory barrier anyway.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-35zzwlvwr7cp8xj196y10yyx@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'ipc/mq_sysctl.c')
0 files changed, 0 insertions, 0 deletions