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SubjectRe: lowmem_reserve (replaces protection)
On Wed, Oct 27, 2004 at 02:25:37AM +0200, Andrea Arcangeli wrote:
> On Tue, Oct 26, 2004 at 02:17:33PM +1000, Nick Piggin wrote:
> > OK that makes sense... it isn't the length of the name, but the fact
> > that that naming convention hasn't proliferated thoughout the 2.6 tree;
>
> I don't see any other equivalent teminology besides my "classzone" word
> existing, if we standardize on "alloc_type" to only mean a classzone
> then I'd be fine to giveup on my wording, I don't care to retain my
> wording, but to me classzone sounds more self explanatory than
> alloc_type (though I must be biased having invented that word).
>
> > maybe could you add a little comment along the lines of the above?
>
> sure. done here:
>
> http://www.kernel.org/pub/linux/kernel/people/andrea/patches/v2.6/2.6.9/lowmem_reserve-2

sorry there was a small buglet, when testing I must have tweaked the
sysctl before sysrq+m so I overlooked it until now when I was playing
with a new feature (the other version of the patch against 2.6.5 that I
tested more closely didn't miss the below)

So it was disabled by default *still* ;)

--- 1-lowmem_reserve/mm/page_alloc.c.~1~ 2004-10-28 01:56:50.000000000 +0200
+++ 1-lowmem_reserve/mm/page_alloc.c 2004-10-28 02:18:39.160567304 +0200
@@ -1916,6 +1916,7 @@ static int __init init_per_zone_pages_mi
if (min_free_kbytes > 16384)
min_free_kbytes = 16384;
setup_per_zone_pages_min();
+ setup_per_zone_lowmem_reserve();
return 0;
}
module_init(init_per_zone_pages_min)

full update ready to be merged is here:

http://www.kernel.org/pub/linux/kernel/people/andrea/patches/v2.6/2.6.9/lowmem_reserve-3

thanks.
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