From: Christoph Hellwig <hch@lst.de>
To: Yu Kuai <yukuai1@huaweicloud.com>
Cc: Christoph Hellwig <hch@lst.de>,
xni@redhat.com, colyli@kernel.org, agk@redhat.com,
snitzer@kernel.org, mpatocka@redhat.com, song@kernel.org,
linux-kernel@vger.kernel.org, dm-devel@lists.linux.dev,
linux-raid@vger.kernel.org, yi.zhang@huawei.com,
yangerkun@huawei.com, johnny.chenyi@huawei.com,
"yukuai (C)" <yukuai3@huawei.com>
Subject: Re: [PATCH RFC md-6.16 v3 15/19] md/md-llbitmap: implement APIs to dirty bits and clear bits
Date: Mon, 12 May 2025 15:30:48 +0200 [thread overview]
Message-ID: <20250512133048.GA32562@lst.de> (raw)
In-Reply-To: <20250512132641.GC31781@lst.de>
On Mon, May 12, 2025 at 03:26:41PM +0200, Christoph Hellwig wrote:
> > 1) bitmap bio must be done before this bio can be issued;
> > 2) bitmap bio will be added to current->bio_list, and wait for this bio
> > to be issued;
> >
> > Do you have a better sulution to this problem?
>
> A bew block layer API that bypasses bio_list maybe? I.e. export
> __submit_bio with a better name and a kerneldoc detailing the narrow
> use case.
That won't work as we'd miss a lot of checks, cgroup handling, etc.
But maybe a flag to skip the recursion avoidance?
next prev parent reply other threads:[~2025-05-12 13:30 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-12 1:19 [PATCH RFC md-6.16 v3 00/19] md: introduce a new lockless bitmap Yu Kuai
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 01/19] md/md-bitmap: add {start, end}_discard in bitmap_operations Yu Kuai
2025-05-12 4:39 ` Christoph Hellwig
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 02/19] md: support discard for bitmap ops Yu Kuai
2025-05-12 4:41 ` Christoph Hellwig
2025-05-12 6:05 ` Yu Kuai
2025-05-12 6:12 ` Christoph Hellwig
2025-05-12 6:22 ` Yu Kuai
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 03/19] md/md-bitmap: remove parameter slot from bitmap_create() Yu Kuai
2025-05-12 4:41 ` Christoph Hellwig
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 04/19] md: add a new sysfs api bitmap_version Yu Kuai
2025-05-12 4:51 ` Christoph Hellwig
2025-05-12 6:12 ` Yu Kuai
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 05/19] md: delay registration of bitmap_ops until creating bitmap Yu Kuai
2025-05-12 4:53 ` Christoph Hellwig
2025-05-12 6:25 ` Yu Kuai
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 06/19] md: add a new parameter 'offset' to md_super_write() Yu Kuai
2025-05-12 4:55 ` Christoph Hellwig
2025-05-12 6:32 ` Yu Kuai
2025-05-12 6:39 ` Christoph Hellwig
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 07/19] md/md-bitmap: add a new helper skip_sync_blocks() in bitmap_operations Yu Kuai
2025-05-12 4:56 ` Christoph Hellwig
2025-05-22 2:44 ` Xiao Ni
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 08/19] md/md-bitmap: add a new helper blocks_synced() " Yu Kuai
2025-05-12 4:57 ` Christoph Hellwig
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 09/19] md: add a new recovery_flag MD_RECOVERY_LAZY_RECOVER Yu Kuai
2025-05-12 4:57 ` Christoph Hellwig
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 10/19] md/md-llbitmap: add data structure definition and comments Yu Kuai
2025-05-12 5:09 ` Christoph Hellwig
2025-05-12 8:05 ` Yu Kuai
2025-05-12 13:24 ` Christoph Hellwig
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 11/19] md/md-llbitmap: implement bitmap IO Yu Kuai
2025-05-12 5:15 ` Christoph Hellwig
2025-05-12 8:15 ` Yu Kuai
2025-05-12 13:25 ` Christoph Hellwig
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 12/19] md/md-llbitmap: implement bit state machine Yu Kuai
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 13/19] md/md-llbitmap: implement APIs for page level dirty bits synchronization Yu Kuai
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 14/19] md/md-llbitmap: implement APIs to mange bitmap lifetime Yu Kuai
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 15/19] md/md-llbitmap: implement APIs to dirty bits and clear bits Yu Kuai
2025-05-12 5:17 ` Christoph Hellwig
2025-05-12 8:23 ` Yu Kuai
2025-05-12 13:26 ` Christoph Hellwig
2025-05-12 13:30 ` Christoph Hellwig [this message]
2025-05-12 13:36 ` Yu Kuai
2025-05-13 6:32 ` Yu Kuai
2025-05-13 6:48 ` Christoph Hellwig
2025-05-13 7:14 ` Yu Kuai
2025-05-13 7:43 ` Christoph Hellwig
2025-05-13 9:32 ` Yu Kuai
2025-05-14 5:17 ` Christoph Hellwig
2025-05-15 13:38 ` Yu Kuai
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 16/19] md/md-llbitmap: implement APIs for sync_thread Yu Kuai
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 17/19] md/md-llbitmap: implement all bitmap operations Yu Kuai
2025-05-12 5:18 ` Christoph Hellwig
2025-05-12 8:28 ` Yu Kuai
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 18/19] md/md-llbitmap: implement sysfs APIs Yu Kuai
2025-05-12 1:19 ` [PATCH RFC md-6.16 v3 19/19] md/md-llbitmap: add Kconfig Yu Kuai
2025-05-12 5:19 ` Christoph Hellwig
2025-05-12 8:30 ` Yu Kuai
2025-05-12 5:21 ` [PATCH RFC md-6.16 v3 00/19] md: introduce a new lockless bitmap Christoph Hellwig
2025-05-12 8:40 ` Yu Kuai
2025-05-12 13:27 ` Christoph Hellwig
2025-05-12 13:41 ` Yu Kuai
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