Re: [PATCH RFC 29/35] scsi: core: drop nth_page() usage within SG entry

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To: David Hildenbrand <david@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx
Subject: Re: [PATCH RFC 29/35] scsi: core: drop nth_page() usage within SG entry
From: Bart Van Assche <bvanassche@xxxxxxx>
Date: Fri, 22 Aug 2025 11:01:40 -0700
Cc: "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>, "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>, Doug Gilbert <dgilbert@xxxxxxxxxxxx>, Alexander Potapenko <glider@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Brendan Jackman <jackmanb@xxxxxxxxxx>, Christoph Lameter <cl@xxxxxxxxxx>, Dennis Zhou <dennis@xxxxxxxxxx>, Dmitry Vyukov <dvyukov@xxxxxxxxxx>, dri-devel@xxxxxxxxxxxxxxxxxxxxx, intel-gfx@xxxxxxxxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxx, io-uring@xxxxxxxxxxxxxxx, Jason Gunthorpe <jgg@xxxxxxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, Johannes Weiner <hannes@xxxxxxxxxxx>, John Hubbard <jhubbard@xxxxxxxxxx>, kasan-dev@xxxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, linux-arm-kernel@xxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-crypto@xxxxxxxxxxxxxxx, linux-ide@xxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx, linux-mmc@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-riscv@xxxxxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>, Marco Elver <elver@xxxxxxxxxx>, Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>, Michal Hocko <mhocko@xxxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxx>, Muchun Song <muchun.song@xxxxxxxxx>, netdev@xxxxxxxxxxxxxxx, Oscar Salvador <osalvador@xxxxxxx>, Peter Xu <peterx@xxxxxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>, Suren Baghdasaryan <surenb@xxxxxxxxxx>, Tejun Heo <tj@xxxxxxxxxx>, virtualization@xxxxxxxxxxxxxxx, Vlastimil Babka <vbabka@xxxxxxx>, wireguard@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx, Zi Yan <ziy@xxxxxxxxxx>
In-reply-to: <20250821200701.1329277-30-david@redhat.com>
References: <20250821200701.1329277-1-david@redhat.com> <20250821200701.1329277-30-david@redhat.com>
User-agent: Mozilla Thunderbird

On 8/21/25 1:06 PM, David Hildenbrand wrote:

It's no longer required to use nth_page() when iterating pages within a
single SG entry, so let's drop the nth_page() usage.

Usually the SCSI core and the SG I/O driver are updated separately.
Anyway:

Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>

Follow-Ups:
- Re: [PATCH RFC 29/35] scsi: core: drop nth_page() usage within SG entry
  - From: David Hildenbrand

References:
- [PATCH RFC 00/35] mm: remove nth_page()
  - From: David Hildenbrand
- [PATCH RFC 29/35] scsi: core: drop nth_page() usage within SG entry
  - From: David Hildenbrand

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