From: patchwork-bot+f2fs--- via Linux-f2fs-devel <linux-f2fs-devel@lists.sourceforge.net>
To: Daeho Jeong <daeho43@gmail.com>
Cc: daehojeong@google.com, kernel-team@android.com,
linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH] f2fs: cache: count the temporary pins apart from the regular references
Date: Tue, 13 Oct 2026 22:30:15 +0000 [thread overview]
Message-ID: <179193061512.1493834.4792720096460143824.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20261005192114.1511660-1-daeho43@gmail.com>
Hello:
This patch was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <jaegeuk@kernel.org>:
On Mon, 5 Oct 2026 19:21:13 +0000 you wrote:
> From: Daeho Jeong <daehojeong@google.com>
>
> f2fs_unlock_cache() and f2fs_end_cache_writeback() take a temporary
> reference on the entry around clear_and_wake_up_bit(), so that the entry
> is not freed before wake_up_bit() returns. f2fs_destroy_cache() waits
> for the LOCKED and WRITEBACK bits and then expects the refcount to be 1,
> but the bit waits can return as soon as the bit is cleared, before the
> I/O completion drops the temporary reference. When the completion runs
> in process context and is preempted there (e.g. dm-flakey in
> generic/311), umount hits:
>
> [...]
Here is the summary with links:
- [f2fs-dev] f2fs: cache: count the temporary pins apart from the regular references
https://git.kernel.org/jaegeuk/f2fs/c/8596baf652f4
You are awesome, thank you!
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prev parent reply other threads:[~2026-10-13 22:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-05 19:21 [f2fs-dev] [PATCH] f2fs: cache: count the temporary pins apart from the regular references Daeho Jeong
2026-10-09 7:23 ` Chao Yu via Linux-f2fs-devel
2026-10-13 22:30 ` patchwork-bot+f2fs--- via Linux-f2fs-devel [this message]
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