Re: [PATCH RFC] BKL not necessary in cpuid_open

[Arnd Bergmann]

On Wednesday 07 October 2009, John Kacur wrote:
> 
> I've been staring at the BKL lock in cpuid_open, and I can't see what it 
> is protecting. However, I may have missed something - even something 
> obvious, so comments are welcome.
> 

Hi John,

In general, the lock_kernel() calls in any chardev open() file operation
are the result of the BKL pushdown by Jon Corbet and others, which has happened
some time last year[1]. I'd assume that the vast majority is not needed
at all, so these are an easy target for removal.

	Arnd

[1] http://lkml.indiana.edu/hypermail/linux/kernel/0805.2/0257.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/