Re: [PATCH 2/5] sched/psi: export psi_memstall_{enter,leave}

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To: Christoph Hellwig <hch@xxxxxx>
Subject: Re: [PATCH 2/5] sched/psi: export psi_memstall_{enter,leave}
From: Johannes Weiner <hannes@xxxxxxxxxxx>
Date: Wed, 14 Sep 2022 12:42:03 +0100
Cc: Jens Axboe <axboe@xxxxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, Suren Baghdasaryan <surenb@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Chris Mason <clm@xxxxxx>, Josef Bacik <josef@xxxxxxxxxxxxxx>, David Sterba <dsterba@xxxxxxxx>, Gao Xiang <xiang@xxxxxxxxxx>, Chao Yu <chao@xxxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-btrfs@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-erofs@xxxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx
In-reply-to: <20220910065058.3303831-3-hch@lst.de>
References: <20220910065058.3303831-1-hch@lst.de> <20220910065058.3303831-3-hch@lst.de>

On Sat, Sep 10, 2022 at 08:50:55AM +0200, Christoph Hellwig wrote:
> To properly account for all refaults from file system logic, file systems
> need to call psi_memstall_enter directly, so export it.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>

References:
- improve pagecache PSI annotations
  - From: Christoph Hellwig
- [PATCH 2/5] sched/psi: export psi_memstall_{enter,leave}
  - From: Christoph Hellwig

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