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linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, fuse-devel@lists.linux.dev, Ihor Solodrai , Bert Karwatzki References: <20261009-b4-mmap-prepare-vma-flag-sanify-v5-0-923b70125b1e@kernel.org> <20261009-b4-mmap-prepare-vma-flag-sanify-v5-24-923b70125b1e@kernel.org> <5d51b6b3-ad58-4827-bedf-f1a79ebd5c86@kernel.org> <5ba7305f-0ad1-44ee-be0b-36752684cdb9@kernel.org> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc 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ZL8q+NItBanHmVMK3FpfYj4bet6j7gfYCdtfFFHya+7RBqt9w35tBNG3AgxJBjCCNZFql6gxyomAr9LfqIZvJ5t2tXMv0mHh446HNmFpWu/IMZohVsQUn3w1mC+lEeY1/VMuBVbrVRMumRs4Ry+G4IPXqqLSwdZKZCdhefh1J8gi1O1WX4UrzROTv+h9Sd9PK8fqLX1PgfLXIB9eNWloRX/7hQY2FMBtjIhr2seIqrHlE1F4PXKxbkloV3KAQzGATAfU+S5jv2TVyIG2wYhgVhmUmzE+Gc650jlLjhMaFWxT0JKdbf6yc5xzd32/qu5NlYDk7XN7mrN5hWI1Aj6VaKd63o1qj3VEI= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 10/12/26 20:48, Lorenzo Stoakes (ARM) wrote: > On Mon, Oct 12, 2026 at 08:39:35PM +0200, David Hildenbrand (Arm) wrote: >> On 10/12/26 20:35, Lorenzo Stoakes (ARM) wrote: >>> >>> That gets removed. >>> >>> >>> I mean we do that in a subsequent commit, I think even the next one? >>> >>> >>> >>> Yeah, but to do that the code would now be something like: >>> >>> vma_flags_t masked = flags; >>> >>> /* >>> * vma_flags_is_mm_managed() tests VMA_IO_BIT, which will be removed >>> * in the next commit. >>> */ >>> vma_flags_clear(&flags, VMA_IO_BIT); >>> if (!vma_flags_is_mm_managed(masked)) { >>> ... >>> } >>> >>> Is that really worth it? >>> >>> I don't think there's really too much confusion intra-patch about that is there? >> >> I would do it as above (- the comment, as that is the next patch indeed) and >> only remove the vma_flags_clear() in the next patch. >> >> But in any case, you should spell out that this is only temporary in the patch >> description :) > > And then there's a 'masked' variable that is unused? > > You need to have two vma_flags_t variables to be able both clear VMA_IO_BIT > and use vma_flags_is_mm_managed(). > > So the change would have to be > > + vma_flags_t masked = *flags; > + > + vma_flags_clear(&flags, VMA_IO_BIT); > + if (!vma_flags_is_mm_managed(&masked)) { > + ... > + } > > Then: > > - vma_flags_t masked = *flags; > - > - vma_flags_clear(&flags, VMA_IO_BIT); > - if (!vma_flags_is_mm_managed(&masked)) { > + if (!vma_flags_is_mm_managed(flags)) { > ... > } > > Which doesn't really seem worth it for somebody who is confused between two > patches mid-series. > > But if you feel strongly I can make the change like that? Whatever you prefer. Most important thing for me was finding it in the next patch and being pleasantly surprised ;) -- Cheers, David