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Subject: Re: [PATCH] Replace timer_bh with tasklet
From: Robert Love <rml@tech9.net>
To: "David S. Miller" <davem@redhat.com>
Cc: george@mvista.com, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org
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On Wed, 2002-06-19 at 18:34, David S. Miller wrote:

> Are you absolutely sure?  What about serial drivers and the TTY layer?
> Have you audited all of that code too?  What about SCSI_BH?  What
> about IMMEDIATE_BH, TQUEUE_BH?  Do they interact non-trivially with
> timers too?

SCSH_BH is gone in 2.5.23.  Matthew Wilcox has a patch to remove
IMMEDIATE_BH.

TIMER_BH is the only BH left as far as I know.

So the needed synchronization, if any, is against the other softirqs.

	Robert Love

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