Re: [RFC] [RFT] [PATCH] kanoj-mm9-2.2.10 simplify swapcache/shm code interaction

[Andrea Arcangeli <andrea@suse.de>]

On Mon, 21 Jun 1999, Stephen C. Tweedie wrote:

>On Mon, 21 Jun 1999 10:17:10 -0700 (PDT), kanoj@google.engr.sgi.com
>(Kanoj Sarcar) said:
>
>> Okay, wrong choice of name on the parameter "shmfs". Would it help
>> to think of the new last parameter to rw_swap_page_base as "dolock",
>> which the caller has to pass in to indicate whether there is a 
>> swap lock map bit?

Kanoj did you took a look at my VM (I pointed out to you the url some time
ago). Here I just safely removed the swaplockmap completly. All the
page-contentions get automagically resolved from the swap cache also for
shm.c. I sent the relevant patches to Linus just before the page cache
code gone and the new page/buffer cache broken them in part. But now I am
running again rock solid with 2.3.7_andrea1 with SMP so if Linus will
agree I'll return to send him patches about such shm/swap-lockmap issue.
Just to show you:

andrea@laser:/usr/src$ cvs diff -u -r linux-2_3_7 linux/mm/page_io.c|diffstat
 page_io.c |  129 ++------------------------------------------------------------
 1 files changed, 6 insertions, 123 deletions

(should be enough to explain the thing :)

Andrea Arcangeli

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