Re: [PATCH v2 4/4] mm/vmalloc: Hugepage vmalloc mappings
From: Christoph Hellwig <hch@infradead.org>
Date: 2020-04-14 13:02:55
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linux-arch, linux-arm-kernel, linux-mm, lkml
On Tue, Apr 14, 2020 at 10:13:44PM +1000, Nicholas Piggin wrote:
Which case? Usually the answer would be because you don't want to use contiguous physical memory and/or you don't want to use the linear mapping.
But with huge pages you do by definition already use large contiguous areas. So you want allocations larger than "small" huge pages but not using gigantic pages using vmalloc?