Messages in this thread | ![/](/images/icornerl.gif) | | Date | Sat, 2 Aug 2003 11:02:53 -0400 (EDT) | From | Zwane Mwaikambo <> | Subject | Re: [PATCH] [1/2] random: SMP locking |
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On Sat, 2 Aug 2003, Matt Mackall wrote:
> On Sat, Aug 02, 2003 at 08:35:22AM -0400, Zwane Mwaikambo wrote: > > On Sat, 2 Aug 2003, Andrew Morton wrote: > > > Cannot perform userspace access while holding a lock - a pagefault could > > > occur, perform IO, schedule away and the same CPU tries to take the same > > > lock via a different process. > > > > Perhaps might_sleep() in *_user, copy_* etc is in order? > > Wouldn't have caught this case - this interface hasn't actually been > used/useful for many years as it only gives access to one of the > pools and has never been atomic either.
Aha, thanks for the explanation.
Zwane -- function.linuxpower.ca - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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