Re: [PATCH 5/5] mm: search from free_area_cache for the bigger size

From: Andrew Morton
Date: Wed Feb 01 2012 - 17:44:05 EST

On Fri, 13 Jan 2012 19:47:31 +0800
Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx> wrote:

> If the required size is bigger than cached_hole_size, we would better search
> from free_area_cache, it is more easier to get free region, specifically for
> the 64 bit process whose address space is large enough
> Do it just as hugetlb_get_unmapped_area_topdown() in arch/x86/mm/hugetlbpage.c

Can this cause additional fragmentation of the virtual address region?
If so, what might be the implications of this?

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at