Re: [f2fs-dev] [PATCH 1/2] f2fs: fix lock priority inversion issue
From: patchwork-bot+f2fs
Date: Tue Feb 10 2026 - 16:28:48 EST
Hello:
This series was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <jaegeuk@xxxxxxxxxx>:
On Fri, 30 Jan 2026 21:28:08 +0800 you wrote:
> If userspace thread has held f2fs rw semaphore, due to its low priority,
> it could be runnable or preempted state for long time, during the time,
> it will block high priority thread which is trying to grab the same rw
> semaphore, e.g. cp_rwsem, io_rwsem...
>
> To fix such issue, let's detect thread's priority when it tries to grab
> f2fs_rwsem lock, if the priority is lower than a priority threshold, let's
> uplift the priority before it enters into critical region of lock, and
> restore the priority after it leaves from critical region.
>
> [...]
Here is the summary with links:
- [f2fs-dev,1/2] f2fs: fix lock priority inversion issue
https://git.kernel.org/jaegeuk/f2fs/c/07de55cbf576
- [f2fs-dev,2/2] f2fs: introduce trace_f2fs_priority_update
https://git.kernel.org/jaegeuk/f2fs/c/bc367775f602
You are awesome, thank you!
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