Re: Linux 2.6.7-rc1

[William Lee Irwin III <wli@holomorphy.com>]

William Lee Irwin III wrote:
>> I wouldn't qualify either of the major VM patch series merged as
>> rewrites. I saw:
>> (1) move unmapping function/helpers to different algorithm to save space
>> (2) NUMA API and support functions

On Sun, May 23, 2004 at 05:30:55PM -0400, Jeff Garzik wrote:
> You missed the pte chains going away, a fundamental change in the way 
> reverse mapping is done?

(1) describes that in more detail than "pte_chains going away". It's
just a search algorithm. For anonymous pages, anon_vma just strobes
offsets into vma inheritance chains, and anonmm just strobes vaddrs in
all forks between execs, for file-backed memory they both use ->i_mmap.
Yes, they can both be summarized in the same sentence. The scope of the
changes are very limited and the presentation of them is a very clearly
documented and incremental series of small changes.


-- wli