Re: [PATCH RFC 06/35] mm/page_alloc: reject unreasonable folio/compound page sizes in alloc_contig_range_noprof()
From: SeongJae Park <sj@kernel.org>
Date: 2025-08-22 17:07:48
Also in:
dri-devel, intel-gfx, io-uring, kvm, linux-arm-kernel, linux-crypto, linux-ide, linux-iommu, linux-kselftest, linux-mips, linux-mm, linux-mmc, linux-riscv, linux-s390, linux-scsi, lkml, virtualization
On Thu, 21 Aug 2025 22:06:32 +0200 David Hildenbrand [off-list ref] wrote:
Let's reject them early,
I like early failures. :)
which in turn makes folio_alloc_gigantic() reject them properly. To avoid converting from order to nr_pages, let's just add MAX_FOLIO_ORDER and calculate MAX_FOLIO_NR_PAGES based on that. Signed-off-by: David Hildenbrand <redacted>
Acked-by: SeongJae Park <sj@kernel.org> Thanks, SJ [...]