Messages in this thread | | | Date | Sun, 05 Sep 2004 15:50:13 +1000 | From | Nick Piggin <> | Subject | Re: [RFC][PATCH 2/3] alloc-order watermarks |
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Nick Piggin wrote: > 2/3 > > > ------------------------------------------------------------------------ > > > > Move the watermark checking code into a single function. Extend it to account > for the order of the allocation and the number of free pages that could satisfy > such a request. > > Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au> > > > --- > > linux-2.6-npiggin/include/linux/mmzone.h | 2 + > linux-2.6-npiggin/mm/page_alloc.c | 57 ++++++++++++++++++++----------- > 2 files changed, 40 insertions(+), 19 deletions(-) > > diff -puN mm/page_alloc.c~vm-alloc-order-watermarks mm/page_alloc.c > --- linux-2.6/mm/page_alloc.c~vm-alloc-order-watermarks 2004-09-05 14:55:46.000000000 +1000 > +++ linux-2.6-npiggin/mm/page_alloc.c 2004-09-05 15:10:07.000000000 +1000 > @@ -676,6 +676,36 @@ buffered_rmqueue(struct zone *zone, int > } > > /* > + * Return the number of pages available for order 'order' allocations. > + */
Sorry, stale comment. It actually returns 1 if free pages are above the watermark, 0 otherwise.
> +int zone_watermark_ok(struct zone *z, int order, unsigned long mark, > + int alloc_type, int can_try_harder, int gfp_high) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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