Messages in this thread | | | Date | Mon, 27 Feb 2006 16:16:34 +0530 | From | Balbir Singh <> | Subject | Re: [Lse-tech] Re: [Patch 2/7] Add sysctl for schedstats |
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<snip> > 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 > meaningless] >
Ingo,
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?
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