From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>,
Matthew Wilcox <willy@infradead.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Suren Baghdasaryan <surenb@google.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>,
David Sterba <dsterba@suse.com>, Gao Xiang <xiang@kernel.org>,
Chao Yu <chao@kernel.org>,
linux-block@vger.kernel.org, linux-btrfs@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-erofs@lists.ozlabs.org,
linux-mm@kvack.org
Subject: [PATCH 2/5] sched/psi: export psi_memstall_{enter,leave}
Date: Thu, 15 Sep 2022 10:41:57 +0100 [thread overview]
Message-ID: <20220915094200.139713-3-hch@lst.de> (raw)
In-Reply-To: <20220915094200.139713-1-hch@lst.de>
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@lst.de>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
---
kernel/sched/psi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c
index ecb4b4ff4ce0a..7f6030091aeee 100644
--- a/kernel/sched/psi.c
+++ b/kernel/sched/psi.c
@@ -917,6 +917,7 @@ void psi_memstall_enter(unsigned long *flags)
rq_unlock_irq(rq, &rf);
}
+EXPORT_SYMBOL_GPL(psi_memstall_enter);
/**
* psi_memstall_leave - mark the end of an memory stall section
@@ -946,6 +947,7 @@ void psi_memstall_leave(unsigned long *flags)
rq_unlock_irq(rq, &rf);
}
+EXPORT_SYMBOL_GPL(psi_memstall_leave);
#ifdef CONFIG_CGROUPS
int psi_cgroup_alloc(struct cgroup *cgroup)
--
2.30.2
next prev parent reply other threads:[~2022-09-15 9:42 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-15 9:41 improve pagecache PSI annotations v2 Christoph Hellwig
2022-09-15 9:41 ` [PATCH 1/5] mm: add PSI accounting around ->read_folio and ->readahead calls Christoph Hellwig
2022-09-15 9:41 ` Christoph Hellwig [this message]
2022-09-15 9:41 ` [PATCH 3/5] btrfs: add manual PSI accounting for compressed reads Christoph Hellwig
2022-11-03 10:46 ` [REGESSION] systemd-oomd overreacting due to PSI changes for Btrfs (was: Re: [PATCH 3/5] btrfs: add manual PSI accounting for compressed reads) Thorsten Leemhuis
2022-11-03 11:08 ` [REGESSION] systemd-oomd overreacting due to PSI changes for Btrfs #forregzbot Thorsten Leemhuis
2022-11-03 12:40 ` [REGESSION] systemd-oomd overreacting due to PSI changes for Btrfs (was: Re: [PATCH 3/5] btrfs: add manual PSI accounting for compressed reads) Christoph Hellwig
2022-11-03 22:20 ` Johannes Weiner
2022-11-04 7:32 ` Thorsten Leemhuis
2022-11-04 12:36 ` Johannes Weiner
2022-09-15 9:41 ` [PATCH 4/5] erofs: add manual PSI accounting for the compressed address space Christoph Hellwig
2022-09-15 9:42 ` [PATCH 5/5] block: remove PSI accounting from the bio layer Christoph Hellwig
2022-09-15 13:01 ` improve pagecache PSI annotations v2 David Sterba
2022-09-19 15:45 ` Christoph Hellwig
2022-09-20 14:24 ` Jens Axboe
2022-09-20 17:21 ` Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2022-09-10 6:50 improve pagecache PSI annotations Christoph Hellwig
2022-09-10 6:50 ` [PATCH 2/5] sched/psi: export psi_memstall_{enter,leave} Christoph Hellwig
2022-09-14 11:42 ` Johannes Weiner
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