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-rw-r--r--Documentation/scheduler/sched-arch.rst4
1 files changed, 1 insertions, 3 deletions
diff --git a/Documentation/scheduler/sched-arch.rst b/Documentation/scheduler/sched-arch.rst
index 505cd27f9a..ed07efea7d 100644
--- a/Documentation/scheduler/sched-arch.rst
+++ b/Documentation/scheduler/sched-arch.rst
@@ -10,7 +10,7 @@ Context switch
By default, the switch_to arch function is called with the runqueue
locked. This is usually not a problem unless switch_to may need to
take the runqueue lock. This is usually due to a wake up operation in
-the context switch. See arch/ia64/include/asm/switch_to.h for an example.
+the context switch.
To request the scheduler call switch_to with the runqueue unlocked,
you must `#define __ARCH_WANT_UNLOCKED_CTXSW` in a header file
@@ -68,7 +68,5 @@ Possible arch/ problems
Possible arch problems I found (and either tried to fix or didn't):
-ia64 - is safe_halt call racy vs interrupts? (does it sleep?) (See #4a)
-
sparc - IRQs on at this point(?), change local_irq_save to _disable.
- TODO: needs secondary CPUs to disable preempt (See #1)