Re: [patches] [PATCH] [1/58] x86: Always flush pages in change_page_attr

On Monday 06 August 2007 12:15:01 Jan Beulich wrote:
> But that is still wrong - you're again flushing the page table page rather than
> the data one. Fixing this was the purpose of the patch I had sent, plus the
> broken reference counting used by the reversion logic. Jan

True. The problem is that we can't necessarily use the LRU list_head of the data
pages though; e.g. when the page is mapped to user space.

I guess we might need to go back to wbinvd again.

What was the remaining problem of the reference counting? 

-Andi

-
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/

---

• Follow-Ups:
  • Re: [patches] [PATCH] [1/58] x86: Always flush pages in change_page_attr
    • From: "Jan Beulich" <[email protected]>

• References:
  • [PATCH] [0/58] First batch of x86 patches for .23
    • From: Andi Kleen <[email protected]>
  • [PATCH] [1/58] x86: Always flush pages in change_page_attr
    • From: Andi Kleen <[email protected]>
  • Re: [patches] [PATCH] [1/58] x86: Always flush pages in change_page_attr
    • From: "Jan Beulich" <[email protected]>

• Prev by Date: Re: [RFC][PATCH] genirq: support multiple interrupt priorities
• Next by Date: Re: MODULE_LICENSE usage
• Previous by thread: Re: [patches] [PATCH] [1/58] x86: Always flush pages in change_page_attr
• Next by thread: Re: [patches] [PATCH] [1/58] x86: Always flush pages in change_page_attr
• Index(es):
  • Date
  • Thread

[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]