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From: Chao Yu <chao@kernel.org>
To: Wenjie Qi <qwjhust@gmail.com>
Cc: chao@kernel.org, Wenjie Qi <qiwenjie@xiaomi.com>,
	Jaegeuk Kim <jaegeuk@kernel.org>,
	linux-kernel@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [PATCH v1 01/12] f2fs: cache: implement metadata cache
Date: Mon, 24 Aug 2026 15:03:55 +0800	[thread overview]
Message-ID: <1866dad3-48a7-4129-9191-dc9b763e7e21@kernel.org> (raw)
In-Reply-To: <20260823125257.3227421-1-qiwenjie@xiaomi.com>

On 8/23/26 20:52, Wenjie Qi wrote:
> Hi Chao,
> 
>> static void f2fs_zone_write_end_io(struct bio *bio)
>> {
>> 	bio->bi_private = io->bi_private;
>> 	complete(&io->zone_wait);
>> 	if (io->fio.is_cache)
>> 		f2fs_cache_write_end_io(bio);
>> 	else
>> 		f2fs_write_end_io(bio);
>> }
> 
> `io->fio` is updated when the next BIO is prepared.  Once
> `complete(&io->zone_wait)` wakes the waiting writer, that preparation can
> run before this callback reads `io->fio.is_cache`.
> 
> Is there another serialization condition that keeps `io->fio.is_cache`
> unchanged between `complete()` and this read?

Wenjie,

Thanks for the review, will fix.

Thanks,

  reply	other threads:[~2026-08-24  7:03 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-20  3:17 [PATCH v1 00/12] f2fs: introduce " Chao Yu
2026-08-20  3:17 ` [PATCH v1 01/12] f2fs: cache: implement " Chao Yu
2026-08-20  5:08   ` [f2fs-dev] " Jaegeuk Kim
2026-08-20  5:13     ` Chao Yu
2026-08-23 12:52   ` Wenjie Qi
2026-08-24  7:03     ` Chao Yu [this message]
2026-08-20  3:17 ` [PATCH v1 02/12] f2fs: cache: initialize meta cache Chao Yu
2026-08-20  3:17 ` [PATCH v1 03/12] f2fs: cache: introduce shrinker Chao Yu
2026-08-20  3:17 ` [PATCH v1 04/12] f2fs: cache: introduce writeback thread Chao Yu
2026-08-20  5:09   ` [f2fs-dev] " Jaegeuk Kim
2026-08-23 12:54   ` Wenjie Qi
2026-08-24  7:04     ` Chao Yu
2026-08-20  3:17 ` [PATCH v1 05/12] f2fs: cache: use meta cache Chao Yu
2026-08-20  5:11   ` [f2fs-dev] " Jaegeuk Kim
2026-08-23 12:55   ` Wenjie Qi
2026-08-24  7:05     ` Chao Yu
2026-08-20  3:17 ` [PATCH v1 06/12] f2fs: cache: initialize node cache Chao Yu
2026-08-20  3:17 ` [PATCH v1 07/12] f2fs: cache: use " Chao Yu
2026-08-23 12:57   ` Wenjie Qi
2026-08-24  7:13     ` Chao Yu
2026-08-24  8:57       ` Wenjie Qi
2026-08-23 12:59   ` Wenjie Qi
2026-08-24  7:13     ` Chao Yu
2026-08-20  3:17 ` [PATCH v1 08/12] f2fs: cache: initialize compress cache Chao Yu
2026-08-20  3:17 ` [PATCH v1 09/12] f2fs: cache: use " Chao Yu
2026-08-20  3:17 ` [PATCH v1 10/12] f2fs: cache: support fault injection Chao Yu
2026-08-20  3:17 ` [PATCH v1 11/12] f2fs: cache: introduce tracepoints Chao Yu
2026-08-20  3:17 ` [PATCH v1 12/12] f2fs: cache: show per-cache usage in debugfs Chao Yu
2026-08-24 10:07 ` [PATCH v1 00/12] f2fs: introduce metadata cache Wenjie Qi

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