From: Jason Gunthorpe <jgg@nvidia.com>
To: Peter Xu <peterx@redhat.com>
Cc: kvm@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Nico Pache <npache@redhat.com>,
Zi Yan <ziy@nvidia.com>, Alex Mastro <amastro@fb.com>,
David Hildenbrand <david@redhat.com>,
Alex Williamson <alex@shazbot.org>, Zhi Wang <zhiw@nvidia.com>,
David Laight <david.laight.linux@gmail.com>,
Yi Liu <yi.l.liu@intel.com>, Ankit Agrawal <ankita@nvidia.com>,
Kevin Tian <kevin.tian@intel.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH v2 2/4] mm: Add file_operations.get_mapping_order()
Date: Tue, 16 Dec 2025 13:19:44 -0400 [thread overview]
Message-ID: <20251216171944.GG6079@nvidia.com> (raw)
In-Reply-To: <aUF97-BQ8X45IDqE@x1.local>
On Tue, Dec 16, 2025 at 10:42:39AM -0500, Peter Xu wrote:
> Also see __thp_get_unmapped_area() processed such pgoff, it allocates VA
> with len_pad (not len), and pad the retval at last.
>
> Please let me know if it didn't work like it, then it might be a bug.
It should all be documented then in the kdoc for the new ops, in this
kind of language that the resulting VA flows from pgoff
Jason
next prev parent reply other threads:[~2025-12-16 17:19 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-04 15:09 [PATCH v2 0/4] mm/vfio: huge pfnmaps with !MAP_FIXED mappings Peter Xu
2025-12-04 15:10 ` [PATCH v2 1/4] mm/thp: Allow thp_get_unmapped_area_vmflags() to take alignment Peter Xu
2025-12-04 15:10 ` [PATCH v2 2/4] mm: Add file_operations.get_mapping_order() Peter Xu
2025-12-04 15:19 ` Peter Xu
2025-12-08 9:21 ` Matthew Wilcox
2025-12-10 20:24 ` Peter Xu
2025-12-07 16:21 ` Jason Gunthorpe
2025-12-10 20:23 ` Peter Xu
2025-12-16 14:44 ` Jason Gunthorpe
2025-12-16 15:42 ` Peter Xu
2025-12-16 17:19 ` Jason Gunthorpe [this message]
2025-12-16 17:36 ` Peter Xu
2025-12-16 18:58 ` Jason Gunthorpe
2025-12-16 19:44 ` Peter Xu
2025-12-19 14:59 ` Jason Gunthorpe
2025-12-19 15:13 ` Peter Xu
2025-12-19 15:20 ` Jason Gunthorpe
2025-12-19 15:53 ` Peter Xu
2025-12-04 15:10 ` [PATCH v2 3/4] vfio: Introduce vfio_device_ops.get_mapping_order hook Peter Xu
2025-12-04 15:10 ` [PATCH v2 4/4] vfio-pci: Best-effort huge pfnmaps with !MAP_FIXED mappings Peter Xu
2025-12-05 4:33 ` kernel test robot
2025-12-05 7:45 ` kernel test robot
2025-12-07 16:26 ` Jason Gunthorpe
2025-12-10 20:43 ` Peter Xu
2025-12-16 14:42 ` Jason Gunthorpe
2025-12-16 16:01 ` Peter Xu
2025-12-16 19:01 ` Jason Gunthorpe
2025-12-16 19:58 ` Peter Xu
2025-12-08 3:11 ` Alex Mastro
2025-12-04 18:16 ` [PATCH v2 0/4] mm/vfio: " Cédric Le Goater
2025-12-07 9:13 ` Alex Mastro
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