Re: x86 ptep_get_and_clear question

From: Jamie Lokier (
Date: Fri Feb 16 2001 - 09:18:39 EST

Linus Torvalds wrote:
> So the only case that ends up being fairly heavy may be a case that is
> very uncommon in practice (only for unmapping shared mappings in
> threaded programs or the lazy TLB case).

I can think of one case where performance is considered quite important:
mprotect() is used by several garbage collectors, including threaded
ones. Maybe mprotect() isn't the best primitive for those anyway, but
it's what they have to work with atm.

-- Jamie
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This archive was generated by hypermail 2b29 : Fri Feb 23 2001 - 21:00:13 EST