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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2010-03-19 07:36:51 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2010-05-10 22:08:31 +0400 |
| commit | d25eb9442bb2c38c1e742f0fa764d7132d72593f (patch) | |
| tree | 0a2604a3b61ce7a0868c021ac945d9826e0d88f1 /kernel/cred-internals.h | |
| parent | 2b3fc35f6919344e3cf722dde8308f47235c0b70 (diff) | |
| download | linux-d25eb9442bb2c38c1e742f0fa764d7132d72593f.tar.xz | |
rcu: substitute set_need_resched for sending resched IPIs
This patch adds a check to __rcu_pending() that does a local
set_need_resched() if the current CPU is holding up the current grace
period and if force_quiescent_state() will be called soon. The goal is
to reduce the probability that force_quiescent_state() will need to do
smp_send_reschedule(), which sends an IPI and is therefore more expensive
on most architectures.
Signed-off-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/cred-internals.h')
0 files changed, 0 insertions, 0 deletions