Re: [PATCH 22.214.171.124 1/2] lib: allow idr to be used in irq context
From: Andrew Morton
Date: Mon Aug 22 2005 - 17:57:41 EST
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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