hotplug cpu: documentation addition to downing a cpu
PATCH 1/1 hotplug cpu: documentation addition to downing a cpu
In answer to Andrew:
Quoted 3 lines
How do we communicate this new design/feature to our users?
Documentation/cpusets.txt, perhaps?Documentation/cpu-hotplug.txt? git-log? ;)
Patch "[PATCH 1/1] V4: hotplug cpu: migrate a task within its cpuset" may warrant an addition to the documentation. I would propose this note in cpu-hotplug.txt.
Diffed against 2.6.23-rc3
Signed-off-by Cliff Wickman <[email protected]>
--- Documentation/cpu-hotplug.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
Documentation/cpu-hotplug.txt +3 -1
@@ -220,7 +220,9 @@ A: The following happen, listed in no pa CPU_DOWN_PREPARE or CPU_DOWN_PREPARE_FROZEN, depending on whether or not the CPU is being offlined while tasks are frozen due to a suspend operation in progress -- All process is migrated away from this outgoing CPU to a new CPU +- All processes are migrated away from this outgoing CPU to new CPUs. + The new CPU is chosen from each process' current cpuset, which may be + a subset of all online CPUs. - All interrupts targeted to this CPU is migrated to a new CPU - timers/bottom half/task lets are also migrated to a new CPU - Once all services are migrated, kernel calls an arch specific routine
Signature · 4 lines
Cliff Wickman Silicon Graphics, Inc. [email protected] (651) 683-3824