From: Christoph Hellwig <hch@infradead.org>
To: Qu Wenruo <quwenruo.btrfs@gmx.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Linux FS Devel <linux-fsdevel@vger.kernel.org>,
dm-devel@redhat.com,
"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: Any bio_clone_slow() implementation which doesn't share bi_io_vec?
Date: Tue, 23 Nov 2021 00:13:44 -0800 [thread overview]
Message-ID: <YZyiuFxAeKE/WMrR@infradead.org> (raw)
In-Reply-To: <79d38fc2-cd2f-2980-2c4e-408078ce6079@gmx.com>
On Tue, Nov 23, 2021 at 04:10:35PM +0800, Qu Wenruo wrote:
> Without bio_chain() sounds pretty good, as we can still utilize
> bi_end_io and bi_private.
>
> But this also means, we're now responsible not to release the source bio
> since it has the real bi_io_vec.
Just call bio_inc_remaining before submitting the cloned bio, and then
call bio_endio on the root bio every time a clone completes.
next prev parent reply other threads:[~2021-11-23 8:13 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-23 6:44 Any bio_clone_slow() implementation which doesn't share bi_io_vec? Qu Wenruo
2021-11-23 7:43 ` Christoph Hellwig
2021-11-23 8:10 ` Qu Wenruo
2021-11-23 8:13 ` Christoph Hellwig [this message]
2021-11-23 11:09 ` Qu Wenruo
2021-11-23 11:39 ` Johannes Thumshirn
2021-11-23 14:28 ` hch
2021-11-23 23:07 ` Qu Wenruo
2021-11-24 6:09 ` hch
2021-11-24 6:18 ` Qu Wenruo
2021-11-24 7:02 ` hch
2021-11-24 7:22 ` hch
2021-11-24 7:25 ` Naohiro Aota
2021-11-24 7:39 ` Qu Wenruo
2021-11-26 12:33 ` Qu Wenruo
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