Re: [Lse-tech] Re: [Patch 2/7] Add sysctl for schedstats
From: Balbir Singh
Date: Mon Feb 27 2006 - 05:44:24 EST
> why not just introduce a schedstats_lock mutex, and acquire it for both
> the 'if (schedstats_sysctl)' line and the schedstats_set() line. That
> will make the locking meaningful: two parallel sysctl ops will be atomic
> to each other. [right now they wont be and they can clear schedstat data
> in parallel -> not a big problem but it makes schedstats_lock rather
Can sysctl's run in parallel? sys_sysctl() is protects the call
to do_sysctl() with BKL (lock_kernel/unlock_kernel).
Am I missing something?
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/