diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-25 13:42:32 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-25 13:42:32 -0800 |
| commit | 0008bf54408d4c0637c24d34642f1038c299be95 (patch) | |
| tree | 6a14cdacaa3057795381672339737a45e45effc7 /init/Kconfig | |
| parent | 2d94dfc8c38edf63e91e48fd55c3a8822b6a9ced (diff) | |
| parent | 6d082592b62689fb91578d0338d04a9f50991990 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched: (96 commits)
sched: keep total / count stats in addition to the max for
sched, futex: detach sched.h and futex.h
sched: fix: don't take a mutex from interrupt context
sched: print backtrace of running tasks too
printk: use ktime_get()
softlockup: fix signedness
sched: latencytop support
sched: fix goto retry in pick_next_task_rt()
timers: don't #error on higher HZ values
sched: monitor clock underflows in /proc/sched_debug
sched: fix rq->clock warps on frequency changes
sched: fix, always create kernel threads with normal priority
debug: clean up kernel/profile.c
sched: remove the !PREEMPT_BKL code
sched: make PREEMPT_BKL the default
debug: track and print last unloaded module in the oops trace
debug: show being-loaded/being-unloaded indicator for modules
sched: rt-watchdog: fix .rlim_max = RLIM_INFINITY
sched: rt-group: reduce rescheduling
hrtimer: unlock hrtimer_wakeup
...
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index f5becd2a12f..0eda68f0ad5 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -763,3 +763,31 @@ source "block/Kconfig" config PREEMPT_NOTIFIERS bool + +choice + prompt "RCU implementation type:" + default CLASSIC_RCU + +config CLASSIC_RCU + bool "Classic RCU" + help + This option selects the classic RCU implementation that is + designed for best read-side performance on non-realtime + systems. + + Say Y if you are unsure. + +config PREEMPT_RCU + bool "Preemptible RCU" + depends on PREEMPT + help + This option reduces the latency of the kernel by making certain + RCU sections preemptible. Normally RCU code is non-preemptible, if + this option is selected then read-only RCU sections become + preemptible. This helps latency, but may expose bugs due to + now-naive assumptions about each RCU read-side critical section + remaining on a given CPU through its execution. + + Say N if you are unsure. + +endchoice |