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a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=wR2vIyoI0N5pwT1BwNstwo6UsRKMLal3+wIAvkxVMvs=; b=zukCrUtu3mimFKUeZm0RXMqQK2 kGGyaNN6usXLgSEU9Gbgcd9Rnxu7OIAbwN70g4v7jeIBQ/PTGsCqjWKVowrD6E95c+yFcSirTXOCX 2pmMIo7aGE4K8ub7kLxRf4wx2kyIwapXnUZXJ8vz4qq/X5GSoISA6ENIibRBD9mbRPRuKnzbWtC+4 du5vhRkKVCfRUzFnwD/uNhod1/p6ROSCrwCQCyikwpZXMZzkuV18jBwoj5qRYOck+tIkbRXraPwLA GTRsNx3hGDic5W8Lre8E5Laissc7COmB0DCteaZNYnMjWR/chZwTY/tWp/j+wBVJA8AnEPVVK6dW0 AL0uhuqg==; Received: from hch by bombadil.infradead.org with local (Exim 4.99.1 #2 (Red Hat Linux)) id 1wROZT-0000000GOO6-1oJq; Mon, 25 May 2026 06:13:51 +0000 Date: Sun, 24 May 2026 23:13:51 -0700 From: Christoph Hellwig To: David Howells Cc: Christian Brauner , Matthew Wilcox , Christoph Hellwig , Paulo Alcantara , Jens Axboe , Leon Romanovsky , Steve French , ChenXiaoSong , Marc Dionne , Eric Van Hensbergen , Dominique Martinet , Ilya Dryomov , Trond Myklebust , netfs@lists.linux.dev, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org, ceph-devel@vger.kernel.org, v9fs@lists.linux.dev, linux-erofs@lists.ozlabs.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org Subject: Re: [PATCH v2 06/21] iov_iter: Make iov_iter_get_pages*() wrap iov_iter_extract_pages() Message-ID: References: <20260518222959.488126-1-dhowells@redhat.com> <20260518222959.488126-7-dhowells@redhat.com> X-Mailing-List: linux-erofs@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260518222959.488126-7-dhowells@redhat.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Mon, May 18, 2026 at 11:29:38PM +0100, David Howells wrote: > Make iov_iter_get_pages*() wrap iov_iter_extract_pages() for kernel > iterator types (e.g. ITER_BVEC, ITER_FOLIOQ, ITER_XARRAY). The pages > obtained have their refcounts incremented afterwards if they're not slab > pages. ITER_KVEC is left returning -EFAULT. Just kill off iov_iter_get_pages*, please. Or at least stop using it where these types matter.