Re: Inefficient TLB flushing
From: David S. Miller
Date: Wed Nov 12 2003 - 22:59:43 EST
On Wed, 12 Nov 2003 14:01:19 -0600
Jack Steiner <steiner@xxxxxxx> wrote:
> --- /usr/tmp/TmpDir.19957-0/linux/mm/memory.c_1.79 Wed Nov 12 13:56:25 2003
> +++ linux/mm/memory.c Wed Nov 12 12:57:25 2003
> @@ -574,9 +574,10 @@
> if ((long)zap_bytes > 0)
> continue;
> if (need_resched()) {
> + int fullmm = (*tlbp)->fullmm;
> tlb_finish_mmu(*tlbp, tlb_start, start);
> cond_resched_lock(&mm->page_table_lock);
> - *tlbp = tlb_gather_mmu(mm, 0);
> + *tlbp = tlb_gather_mmu(mm, fullmm);
> tlb_start_valid = 0;
> }
> zap_bytes = ZAP_BLOCK_SIZE;
This patch looks perfectly fine, good analysis.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/