softirq: remove irqs_disabled warning from local_bh_enable

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There's no need to use local_irq_save() over local_irq_disable() in the
local_bh_enable code since it is a bug to call it with irqs disabled and
do_softirq will enable irqs if there is any pending work.

Consolidate the code from local_bh_enable and ..._ip to avoid having a
disconnect between them in the warnings they trigger that is currently
there.

Also always trigger the warning on in_irq(), not just in the
trace-irqflags case.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Michael Buesch <mb@bu3sch.de>
Cc: David Ellingsworth <david@identd.dyndns.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Johannes Berg 2008-06-18 09:29:37 +02:00 • committed by Ingo Molnar

parent 4620b49f76

commit 0f476b6d91

1 changed files with 11 additions and 37 deletions

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kernel/softirq.c

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