Messages in this thread | | | Date | Fri, 17 Jul 1998 18:49:30 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: patch to trim page table cache |
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On Fri, 17 Jul 1998, Bill Hawes wrote: > > The patch also corrects an apparent kernel locking problem in > arch/i386/kernel/process.c. The SMP version of sys_idle() doesn't get > the kernel lock before calling check_pgt_cache(), but since the pgt > quicklists don't have spinlock protection, the kernel lock is necessary > for SMP safety. I've moved the kernel lock upwards to cover it.
The page table caches should be completely per-CPU, and thus don't need any locking. At least that's tthe way it's _meant_ to be,
Linus
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