From: David Howells <dhowells@redhat.com>
To: Matthew Wilcox <willy@infradead.org>
Cc: dhowells@redhat.com, Christian Brauner <christian@brauner.io>,
Christoph Hellwig <hch@infradead.org>,
Paulo Alcantara <pc@manguebit.org>, Jens Axboe <axboe@kernel.dk>,
Leon Romanovsky <leon@kernel.org>,
Steve French <sfrench@samba.org>,
ChenXiaoSong <chenxiaosong@chenxiaosong.com>,
Marc Dionne <marc.dionne@auristor.com>,
Stefan Metzmacher <metze@samba.org>,
Eric Van Hensbergen <ericvh@kernel.org>,
Dominique Martinet <asmadeus@codewreck.org>,
Ilya Dryomov <idryomov@gmail.com>,
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 v9 04/26] Add a function to kmap one page of a multipage bio_vec
Date: Mon, 10 Aug 2026 21:31:03 +0100 [thread overview]
Message-ID: <586048.1786393863@warthog.procyon.org.uk> (raw)
In-Reply-To: <anooK9-UCNTmoSAq@casper.infradead.org>
Matthew Wilcox <willy@infradead.org> wrote:
> On Mon, Aug 10, 2026 at 03:47:21PM +0100, David Howells wrote:
> > Add a function to kmap one page of a multipage bio_vec by offset (which is
> > added to the offset in the bio_vec internally). The caller is responsible
> > for calculating how much of the page is then available.
>
> I think this should be kmap_local_bvec(). Living in bvec.h makes sense,
> but keeping it in the kmap_local_ namespace is better than putting it in
> the bvec_ namespace.
Christoph disagrees with you:-/
David
next prev parent reply other threads:[~2026-08-10 20:31 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-10 14:47 [PATCH v9 00/26] netfs: Keep track of folios in a segmented bio_vec[] chain David Howells
2026-08-10 14:47 ` [PATCH v9 01/26] netfs: Fix read progress reporting David Howells
2026-08-10 14:47 ` [PATCH v9 02/26] mm: Make readahead store folio count in readahead_control David Howells
2026-08-10 14:47 ` [PATCH v9 03/26] netfs: Bulk load the readahead-provided folios up front David Howells
2026-08-10 14:47 ` [PATCH v9 04/26] Add a function to kmap one page of a multipage bio_vec David Howells
2026-08-10 19:36 ` Matthew Wilcox
2026-08-10 20:31 ` David Howells [this message]
2026-08-10 14:47 ` [PATCH v9 05/26] iov_iter: Make iov_iter_get_pages*() wrap iov_iter_extract_pages() David Howells
2026-08-10 14:47 ` [PATCH v9 06/26] iov_iter: Add a segmented queue of bio_vec[] David Howells
2026-08-10 14:47 ` [PATCH v9 07/26] netfs: Add some tools for managing bvecq chains David Howells
2026-08-10 14:47 ` [PATCH v9 08/26] netfs: Make mempool available for bvecq David Howells
2026-08-10 14:47 ` [PATCH v9 09/26] netfs: Add a function to extract from an iter into a bvecq David Howells
2026-08-10 14:47 ` [PATCH v9 10/26] afs: Use a bvecq to hold dir content rather than folioq David Howells
2026-08-10 14:47 ` [PATCH v9 11/26] cifs: Use a bvecq for buffering instead of a folioq David Howells
2026-08-10 14:47 ` [PATCH v9 12/26] smbdirect: Support ITER_BVECQ in smbdirect_map_sges_from_iter() David Howells
2026-08-10 14:47 ` [PATCH v9 13/26] netfs: Remove the writethrough code David Howells
2026-08-10 14:47 ` [PATCH v9 14/26] cachefiles,netfs: sunset ondemand mode David Howells
2026-08-10 15:09 ` sashiko-bot
2026-08-10 14:47 ` [PATCH v9 15/26] cachefiles: Don't rely on backing fs storage map for most use cases David Howells
2026-08-10 14:47 ` [PATCH v9 16/26] netfs: Add the cache object ID to netfs_read/write tracepoints David Howells
2026-08-10 14:47 ` [PATCH v9 17/26] netfs: Switch to using bvecq rather than folio_queue and rolling_buffer David Howells
2026-08-10 14:47 ` [PATCH v9 18/26] smbdirect: Remove support for ITER_FOLIOQ from smbdirect_map_sges_from_iter() David Howells
2026-08-10 14:47 ` [PATCH v9 19/26] netfs: Remove netfs_alloc/free_folioq_buffer() David Howells
2026-08-10 14:47 ` [PATCH v9 20/26] netfs: Remove netfs_extract_user_iter() David Howells
2026-08-10 14:47 ` [PATCH v9 21/26] iov_iter: Remove ITER_FOLIOQ David Howells
2026-08-10 14:47 ` [PATCH v9 22/26] netfs: Remove folio_queue and rolling_buffer David Howells
2026-08-10 14:47 ` [PATCH v9 23/26] netfs: Simplify read abandonment David Howells
2026-08-10 14:47 ` [PATCH v9 24/26] netfs: Check for too much data being read David Howells
2026-08-10 14:47 ` [PATCH v9 25/26] netfs: Combine prepare and issue ops and grab the buffers on request David Howells
2026-08-10 14:47 ` [PATCH v9 26/26] cachefiles: Preset the state xattr when creating a new file David Howells
2026-08-10 14:51 ` [PATCH v9 00/26] netfs: Keep track of folios in a segmented bio_vec[] chain Christoph Hellwig
2026-08-11 7:26 ` Christian Brauner
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