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Thu, 25 Jun 2026 02:03:06 -0700 (PDT) From: Askar Safin To: val@packett.cool Cc: akpm@linux-foundation.org, axboe@kernel.dk, brauner@kernel.org, david@kernel.org, dhowells@redhat.com, fuse-devel@lists.linux.dev, hch@infradead.org, jack@suse.cz, joannelkoong@gmail.com, linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, miklos@szeredi.hu, netdev@vger.kernel.org, patches@lists.linux.dev, pfalcato@suse.de, rostedt@goodmis.org, safinaskar@gmail.com, torvalds@linux-foundation.org, viro@zeniv.linux.org.uk, willy@infradead.org Subject: Re: [PATCH 0/3] vmsplice: make vmsplice a trivial wrapper for preadv2/pwritev2 Date: Thu, 25 Jun 2026 12:03:01 +0300 Message-ID: <20260625090303.3796964-1-safinaskar@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <83f05c55-efba-4bf5-abfe-d2ab0819e904@packett.cool> References: <83f05c55-efba-4bf5-abfe-d2ab0819e904@packett.cool> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Val Packett : > speaking of fuse_dev_splice……_write actually, this series has broken > xdg-document-portal! > > https://github.com/flatpak/xdg-desktop-portal/issues/2026 > > Specifically what happens is that the EINVAL is returned due to oh.len > != nbytes: > > fuse_dev_do_write: oh.len 16400 != nbytes 15526 > > (where 16400 == 16384 (read len) + 16, 15526 == 15510 (file len) + 16) > > After reverting the series, there is no error because oh.len > becomes 15526 too. Please, test v2 version of my fixes: https://lore.kernel.org/lkml/20260625083409.3769242-1-safinaskar@gmail.com/ . This should fix this bug. -- Askar Safin