On Sat, 19 May 2007 13:35:01 +0200 Andi Kleen <[email protected]> wrote:
> > We have the advantage that if the kernel very occasionally gets the wrong
> > result for PageReadahead(page), nothing particularly bad will happen, so we
> > can do racy things.
>
> On 64bit there is no particular shortage of page flags.
I think pretty much all of the upper 32 bits got used for ia64 fields,
but it's never been very clear how many were actually used or needed.
> If you ever do racy things please do them 32bit only.
hrm. It *really* won't matter if we make one suboptimal readahead decision
every second day. And there's value in having the same behaviour on all
architectures.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
