Messages in this thread | | | Date | Mon, 19 Mar 2001 15:27:20 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: 3rd version of R/W mmap_sem patch available |
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On Tue, 20 Mar 2001, Manfred Spraul wrote: > > Rik, did you check that {pte,pmd}_alloc are thread safe? At least in > 2.4.2 they aren't (include/asm-i386/pgalloc.h), and your patch doesn't > touch pgalloc.
Excellent point. We used to do all the looping and re-trying, but it got ripped out a long time ago (and in any case, it historically didn't do SMP, so the old code doesn't really work).
Linus
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