aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/scheduler
diff options
context:
space:
mode:
authorPeter Zijlstra <a.p.zijlstra@chello.nl>2012-09-12 09:22:00 (GMT)
committerIngo Molnar <mingo@kernel.org>2012-09-13 14:52:04 (GMT)
commitf3e947867478af9a12b9956bcd000ac7613a8a95 (patch)
tree63fabb89439447e0f72c465e8b8d0852e9deff08 /Documentation/scheduler
parent5ed4f1d96deee82ee92cd1ac1e0108c27e80e9b0 (diff)
sched: Remove __ARCH_WANT_INTERRUPTS_ON_CTXSW
Now that the last architecture to use this has stopped doing so (ARM, thanks Catalin!) we can remove this complexity from the scheduler core. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Link: http://lkml.kernel.org/n/tip-g9p2a1w81xxbrze25v9zpzbf@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation/scheduler')
-rw-r--r--Documentation/scheduler/sched-arch.txt10
1 files changed, 0 insertions, 10 deletions
diff --git a/Documentation/scheduler/sched-arch.txt b/Documentation/scheduler/sched-arch.txt
index 28aa107..b1b8587 100644
--- a/Documentation/scheduler/sched-arch.txt
+++ b/Documentation/scheduler/sched-arch.txt
@@ -17,16 +17,6 @@ you must `#define __ARCH_WANT_UNLOCKED_CTXSW` in a header file
Unlocked context switches introduce only a very minor performance
penalty to the core scheduler implementation in the CONFIG_SMP case.
-2. Interrupt status
-By default, the switch_to arch function is called with interrupts
-disabled. Interrupts may be enabled over the call if it is likely to
-introduce a significant interrupt latency by adding the line
-`#define __ARCH_WANT_INTERRUPTS_ON_CTXSW` in the same place as for
-unlocked context switches. This define also implies
-`__ARCH_WANT_UNLOCKED_CTXSW`. See arch/arm/include/asm/system.h for an
-example.
-
-
CPU idle
========
Your cpu_idle routines need to obey the following rules:

Privacy Policy