From: Christoph Hellwig <hch@infradead.org>
To: Joanne Koong <joannelkoong@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>,
brauner@kernel.org, miklos@szeredi.hu, djwong@kernel.org,
hsiangkao@linux.alibaba.com, linux-block@vger.kernel.org,
gfs2@lists.linux.dev, linux-fsdevel@vger.kernel.org,
kernel-team@meta.com, linux-xfs@vger.kernel.org,
linux-doc@vger.kernel.org
Subject: Re: [PATCH v2 05/16] iomap: propagate iomap_read_folio() error to caller
Date: Mon, 15 Sep 2025 09:05:18 -0700 [thread overview]
Message-ID: <aMg5Pgj9L-ajiAev@infradead.org> (raw)
In-Reply-To: <CAJnrk1b8+ojpK3Zr18jGkUxEo9SiFw8NgDCO9crg8jDavBS3ag@mail.gmail.com>
On Fri, Sep 12, 2025 at 12:28:02PM -0400, Joanne Koong wrote:
> I'll drop this. I interpreted Matthew's comment to mean the error
> return isn't useful for ->readahead but is for ->read_folio.
>
> If iomap_read_folio() doesn't do error returns and always just returns
> 0, then maybe we should just make it `void iomap_read_folio(...)`
> instead of `int iomap_read_folio(...)` then.
Yes, more void returns also really help to simplify the code flow.
next prev parent reply other threads:[~2025-09-15 16:05 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-08 18:51 [PATCH v2 00/16] fuse: use iomap for buffered reads + readahead Joanne Koong
2025-09-08 18:51 ` [PATCH v2 01/16] iomap: move async bio read logic into helper function Joanne Koong
2025-09-11 11:09 ` Christoph Hellwig
2025-09-12 16:01 ` Joanne Koong
2025-09-08 18:51 ` [PATCH v2 02/16] iomap: move read/readahead bio submission " Joanne Koong
2025-09-11 11:09 ` Christoph Hellwig
2025-09-08 18:51 ` [PATCH v2 03/16] iomap: rename cur_folio_in_bio to folio_owned Joanne Koong
2025-09-11 11:10 ` Christoph Hellwig
2025-09-08 18:51 ` [PATCH v2 04/16] iomap: store read/readahead bio generically Joanne Koong
2025-09-11 11:11 ` Christoph Hellwig
2025-09-12 16:10 ` Joanne Koong
2025-09-08 18:51 ` [PATCH v2 05/16] iomap: propagate iomap_read_folio() error to caller Joanne Koong
2025-09-11 11:13 ` Christoph Hellwig
2025-09-12 16:28 ` Joanne Koong
2025-09-15 16:05 ` Christoph Hellwig [this message]
2025-09-08 18:51 ` [PATCH v2 06/16] iomap: iterate over entire folio in iomap_readpage_iter() Joanne Koong
2025-09-11 11:15 ` Christoph Hellwig
2025-09-08 18:51 ` [PATCH v2 07/16] iomap: rename iomap_readpage_iter() to iomap_read_folio_iter() Joanne Koong
2025-09-11 11:16 ` Christoph Hellwig
2025-09-08 18:51 ` [PATCH v2 08/16] iomap: rename iomap_readpage_ctx struct to iomap_read_folio_ctx Joanne Koong
2025-09-11 11:16 ` Christoph Hellwig
2025-09-08 18:51 ` [PATCH v2 09/16] iomap: add public start/finish folio read helpers Joanne Koong
2025-09-11 11:16 ` Christoph Hellwig
2025-09-08 18:51 ` [PATCH v2 10/16] iomap: make iomap_read_folio_ctx->folio_owned internal Joanne Koong
2025-09-11 11:17 ` Christoph Hellwig
2025-09-08 18:51 ` [PATCH v2 11/16] iomap: add caller-provided callbacks for read and readahead Joanne Koong
2025-09-09 0:14 ` Gao Xiang
2025-09-09 0:40 ` Gao Xiang
2025-09-09 15:24 ` Joanne Koong
2025-09-09 23:21 ` Gao Xiang
2025-09-10 17:41 ` Joanne Koong
2025-09-11 11:19 ` Christoph Hellwig
2025-09-11 11:26 ` Christoph Hellwig
2025-09-12 17:36 ` Joanne Koong
2025-09-08 18:51 ` [PATCH v2 12/16] iomap: add bias for async read requests Joanne Koong
2025-09-11 11:31 ` Christoph Hellwig
2025-09-12 17:30 ` Joanne Koong
2025-09-15 16:05 ` Christoph Hellwig
2025-09-16 19:14 ` Joanne Koong
2025-09-19 15:04 ` Christoph Hellwig
2025-09-19 17:58 ` Joanne Koong
2025-09-08 18:51 ` [PATCH v2 13/16] iomap: move read/readahead logic out of CONFIG_BLOCK guard Joanne Koong
2025-09-09 2:14 ` Gao Xiang
2025-09-09 15:33 ` Joanne Koong
2025-09-10 4:59 ` Gao Xiang
2025-09-11 11:37 ` Christoph Hellwig
2025-09-11 12:29 ` Gao Xiang
2025-09-11 19:45 ` Joanne Koong
2025-09-12 0:06 ` Gao Xiang
2025-09-12 1:09 ` Gao Xiang
2025-09-12 1:10 ` Gao Xiang
2025-09-12 19:56 ` Joanne Koong
2025-09-12 20:09 ` Joanne Koong
2025-09-12 23:35 ` Gao Xiang
2025-09-12 23:20 ` Gao Xiang
2025-09-11 11:44 ` Christoph Hellwig
2025-09-16 23:23 ` Joanne Koong
2025-09-08 18:51 ` [PATCH v2 14/16] fuse: use iomap for read_folio Joanne Koong
2025-09-08 18:51 ` [PATCH v2 15/16] fuse: use iomap for readahead Joanne Koong
2025-09-08 18:51 ` [PATCH v2 16/16] fuse: remove fc->blkbits workaround for partial writes Joanne Koong
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