Re: page fault fastpath patch v2: fix race conditions, stats for 8,32 and 512 cpu SMP

William Lee Irwin III
2004-08-19T03:31:27Z

On Wed, 18 Aug 2004, William Lee Irwin III wrote:
>> Something like this?

On Wed, Aug 18, 2004 at 11:19:25PM -0400, Rajesh Venkatasubramanian wrote:
> Yeah, something similar... A small nitpick: page_table_lock
> nests within i_mmap_lock and anon_lock.
> do_unmap() also frees page tables first and then removes vmas from
> i_mmap (and/or) anon_vma list. Is there a reason to preserve
> this ordering ?

I don't see a reason to rearrange it. We can just as easily drop and
reacquire ->page_table_lock.

-- wli