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SubjectRe: [PATCHES]
Ingo Molnar wrote:
> on my box the page cache is already completely parallel on SMP,
> we drop the kernel lock on entry into page-cache routines and
> re-lock it only if we call filesystem-specific code or
> buffer-cache code.

How have you called the 'release_kernel_lock()' function?

I found several lengthy operations in the kernel which
should also release the kernel lock.
(the slowest: clear_page() when called by get_free_page(GFP_WAIT))

--
Manfred



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