work_on_cpu: don't try to get_online_cpus() in work_on_cpu.

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Impact: remove potential circular lock dependency with cpu hotplug lock

This has caused more problems than it solved, with a pile of cpu
hotplug locking issues.

Followup patches will get_online_cpus() in callers that need it, but
if they don't do it they're no worse than before when they were using
set_cpus_allowed without locking.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>

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Rusty Russell 2009-01-16 15:31:15 -08:00 • committed by Mike Travis

parent c99dbbe9f8

commit 68564a4697

1 changed files with 4 additions and 10 deletions

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kernel/workqueue.c

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