[PATCH] random : prefetch the whole pool, not 1/4 of it

[Eric Dumazet]

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)

Signed-off-by: Eric Dumazet <dada1@xxxxxxxxxxxxx>

--- 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;