On Fri, Jul 29, 2005 at 12:26:11AM +0200, Eric Dumazet wrote: > Hi Matt > > Could you check this patch and apply it ? > > Thank you > > Eric > > [RANDOM] : prefetch the whole pool, not 1/4 of it, > (pool contains u32 words, not bytes)
You probably want r->poolinfo->poolwords as wordmask is off by one? Please use "x * 4" rather than "x*4" too. > --- linux-2.6.13-rc3/drivers/char/random.c 2005-07-13 06:46:46.000000000 > +0200 > +++ linux-2.6.13-rc3-ed/drivers/char/random.c 2005-07-29 00:11:24.000000000 > +0200 > @@ -469,7 +469,7 @@ > next_w = *in++; > > spin_lock_irqsave(&r->lock, flags); > - prefetch_range(r->pool, wordmask); > + prefetch_range(r->pool, wordmask*4); > input_rotate = r->input_rotate; > add_ptr = r->add_ptr; > -- Mathematics is the supreme nostalgia of our time. - 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/
