Re: [PATCH 2.6.12.5 1/2] lib: allow idr to be used in irq context

[Andrew Morton]

James Bottomley <James.Bottomley@xxxxxxxxxxxx> wrote:
>
> Since you won't post the usage code, just answer this: how does what
>  you're doing with idr differ from its originally designed consumer: the
>  posix timers which also do the idr_remove() in IRQ context?

erp.  posix_timers has its own irq-safe lock, so we're doing extra,
unneeded locking in that code path.

I think providing locking inside idr.c was always a mistake - generally we
rely on caller-provided locking for such things.
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