On Fri, 2006-08-18 at 12:12 +0400, Kirill Korotaev wrote:so what is your proposal then? Sorry, probably missed it due to lots of emails :)
LDT takes from 1 to 16 pages. and is allocated by vmalloc.
do you propose to replace it with slab which can fail due to memory
fragmentation?
Nope. ;)
do you mean that you prefer adding a explicit pointer to the structuresthe same applies to fdset, fdarray, ipc ids and iptables entries.
The vmalloc area, along with all of those other structures _have_ other
data structures. Now, it will take a wee bit more patching to directly
tag those thing with explicit container pointers (or accounting
references), but I would much prefer that, especially for the things
that are larger than a page.
I worry that this approach was used instead of patching all of the:) if we were to optimize for patch size then we would select vserver
individual subsystems because this was easier to maintain as an
out-of-tree patch, and it isn't necessarily the best approach.