From: Christoph Hellwig <hch@lst.de>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>,
Christian Brauner <brauner@kernel.org>,
Chandan Babu R <chandan.babu@oracle.com>,
Zhang Yi <yi.zhang@huaweicloud.com>,
Ritesh Harjani <ritesh.list@gmail.com>,
linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH 13/13] iomap: map multiple blocks at a time
Date: Wed, 29 Nov 2023 06:44:27 +0100 [thread overview]
Message-ID: <20231129054427.GF1385@lst.de> (raw)
In-Reply-To: <20231129052535.GO36211@frogsfrogsfrogs>
On Tue, Nov 28, 2023 at 09:25:35PM -0800, Darrick J. Wong wrote:
> > - case IOMAP_HOLE:
> > - break;
> > - default:
> > - iomap_add_to_ioend(wpc, wbc, folio, inode, pos);
>
> Hey wait, the previous patch missed the error return here!
Oh. I guess that's what you get for rebasing and reordering a little
too much..
> > index b8d3b658ad2b03..49d93f53878565 100644
> > --- a/include/linux/iomap.h
> > +++ b/include/linux/iomap.h
> > @@ -309,6 +309,13 @@ struct iomap_writeback_ops {
> > /*
> > * Required, maps the blocks so that writeback can be performed on
> > * the range starting at offset.
> > + *
> > + * Can return arbitrarily large regions, but we need to call into it at
> > + * least once per folio to allow the file systems to synchronize with
> > + * the write path that could be invalidating mappings.
>
> Does xfs_map_blocks already return arbitrarily large regions? I think
> it already does since I see it setting imap.br_blockcount in places.
Yes, it does try to convert the entire underlying delalloc extent.
prev parent reply other threads:[~2023-11-29 5:44 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-26 12:47 RFC: map multiple blocks per ->map_blocks in iomap writeback Christoph Hellwig
2023-11-26 12:47 ` [PATCH 01/13] iomap: clear the per-folio dirty bits on all writeback failures Christoph Hellwig
2023-11-27 3:47 ` Ritesh Harjani
2023-11-27 6:29 ` Christoph Hellwig
2023-11-26 12:47 ` [PATCH 02/13] iomap: treat inline data in iomap_writepage_map as an I/O error Christoph Hellwig
2023-11-27 5:01 ` Ritesh Harjani
2023-11-27 6:33 ` Christoph Hellwig
2023-11-29 4:40 ` Darrick J. Wong
2023-11-29 5:39 ` Christoph Hellwig
2023-11-26 12:47 ` [PATCH 03/13] iomap: move the io_folios field out of struct iomap_ioend Christoph Hellwig
2023-11-27 5:33 ` Ritesh Harjani
2023-11-29 4:41 ` Darrick J. Wong
2023-11-26 12:47 ` [PATCH 04/13] iomap: drop the obsolete PF_MEMALLOC check in iomap_do_writepage Christoph Hellwig
2023-11-27 6:39 ` Ritesh Harjani
2023-11-27 6:41 ` Christoph Hellwig
2023-11-29 4:45 ` Darrick J. Wong
2023-11-26 12:47 ` [PATCH 05/13] iomap: factor out a iomap_writepage_handle_eof helper Christoph Hellwig
2023-11-27 6:57 ` Ritesh Harjani
2023-11-27 7:02 ` Ritesh Harjani
2023-11-27 7:12 ` Christoph Hellwig
2023-11-29 4:48 ` Darrick J. Wong
2023-11-26 12:47 ` [PATCH 06/13] iomap: move all remaining per-folio logic into xfs_writepage_map Christoph Hellwig
2023-11-27 7:36 ` Ritesh Harjani
2023-11-27 19:20 ` Josef Bacik
2023-11-29 4:50 ` Darrick J. Wong
2023-11-26 12:47 ` [PATCH 07/13] iomap: clean up the iomap_new_ioend calling convention Christoph Hellwig
2023-11-27 7:43 ` Ritesh Harjani
2023-11-27 8:13 ` Christoph Hellwig
2023-11-29 4:51 ` Darrick J. Wong
2023-11-26 12:47 ` [PATCH 08/13] iomap: move the iomap_sector sector calculation out of iomap_add_to_ioend Christoph Hellwig
2023-11-27 9:54 ` Ritesh Harjani
2023-11-27 13:54 ` Christoph Hellwig
2023-11-29 4:53 ` Darrick J. Wong
2023-11-29 5:42 ` Christoph Hellwig
2023-11-26 12:47 ` [PATCH 09/13] iomap: don't chain bios Christoph Hellwig
2023-11-27 12:53 ` Zhang Yi
2023-11-27 13:51 ` Christoph Hellwig
2023-11-29 4:59 ` Darrick J. Wong
2023-11-29 5:40 ` Christoph Hellwig
2023-11-26 12:47 ` [PATCH 10/13] iomap: only call mapping_set_error once for each failed bio Christoph Hellwig
2023-11-29 5:03 ` Darrick J. Wong
2023-11-29 5:41 ` Christoph Hellwig
2023-11-26 12:47 ` [PATCH 11/13] iomap: factor out a iomap_writepage_map_block helper Christoph Hellwig
2023-11-29 5:06 ` Darrick J. Wong
2023-11-26 12:47 ` [PATCH 12/13] iomap: submit ioends immediately Christoph Hellwig
2023-11-29 5:14 ` Darrick J. Wong
2023-11-26 12:47 ` [PATCH 13/13] iomap: map multiple blocks at a time Christoph Hellwig
2023-11-29 5:25 ` Darrick J. Wong
2023-11-29 5:44 ` Christoph Hellwig [this message]
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