Manfred Spraul wrote:
> Ok, Is there one case were your pragmatic solutions is vastly faster?
> * mprotect: No. The difference is at most one additional locked
> instruction for each pte.
Oh, what instruction is that?
> * munmap(anon): No. We must handle delayed accessed anyway (don't call
> free_pages_ok() until flush_tlb_ipi returned). The difference is that we
> might have to perform a second pass to clear any spurious 0x40 bits.
That second pass is what I had in mind.
> * munmap(file): No. Second pass required for correct msync behaviour.
It is?
-- Jamie
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Feb 23 2001 - 21:00:13 EST