From: SeongJae Park <sjpark@amazon.com>
To: <akpm@linux-foundation.org>
Cc: SeongJae Park <sjpark@amazon.de>, <Jonathan.Cameron@Huawei.com>,
<aarcange@redhat.com>, <acme@kernel.org>,
<alexander.shishkin@linux.intel.com>, <amit@kernel.org>,
<benh@kernel.crashing.org>, <brendan.d.gregg@gmail.com>,
<brendanhiggins@google.com>, <cai@lca.pw>,
<colin.king@canonical.com>, <corbet@lwn.net>, <david@redhat.com>,
<dwmw@amazon.com>, <foersleo@amazon.de>, <irogers@google.com>,
<jolsa@redhat.com>, <kirill@shutemov.name>,
<mark.rutland@arm.com>, <mgorman@suse.de>, <minchan@kernel.org>,
<mingo@redhat.com>, <namhyung@kernel.org>, <peterz@infradead.org>,
<rdunlap@infradead.org>, <riel@surriel.com>,
<rientjes@google.com>, <rostedt@goodmis.org>, <rppt@kernel.org>,
<sblbir@amazon.com>, <shakeelb@google.com>, <shuah@kernel.org>,
<sj38.park@gmail.com>, <snu@amazon.de>, <vbabka@suse.cz>,
<vdavydov.dev@gmail.com>, <yang.shi@linux.alibaba.com>,
<ying.huang@intel.com>, <linux-damon@amazon.com>,
<linux-mm@kvack.org>, <linux-doc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: [RFC v5 06/11] mm/rmap: Export essential functions for rmap_run
Date: Tue, 7 Jul 2020 16:45:35 +0200 [thread overview]
Message-ID: <20200707144540.21216-7-sjpark@amazon.com> (raw)
In-Reply-To: <20200707144540.21216-1-sjpark@amazon.com>
From: SeongJae Park <sjpark@amazon.de>
This commit exports the three essential functions for ramp walk,
'page_lock_anon_vma_read()', 'rmap_walk()', and 'page_rmapping()', to
GPL modules. Those will be used by DAMON for the physical memory
address based access monitoring in the following commit.
Signed-off-by: SeongJae Park <sjpark@amazon.de>
---
mm/rmap.c | 2 ++
mm/util.c | 1 +
2 files changed, 3 insertions(+)
diff --git a/mm/rmap.c b/mm/rmap.c
index f79a206b271a..20ac37b27a7d 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -579,6 +579,7 @@ struct anon_vma *page_lock_anon_vma_read(struct page *page)
rcu_read_unlock();
return anon_vma;
}
+EXPORT_SYMBOL_GPL(page_lock_anon_vma_read);
void page_unlock_anon_vma_read(struct anon_vma *anon_vma)
{
@@ -1934,6 +1935,7 @@ void rmap_walk(struct page *page, struct rmap_walk_control *rwc)
else
rmap_walk_file(page, rwc, false);
}
+EXPORT_SYMBOL_GPL(rmap_walk);
/* Like rmap_walk, but caller holds relevant rmap lock */
void rmap_walk_locked(struct page *page, struct rmap_walk_control *rwc)
diff --git a/mm/util.c b/mm/util.c
index 988d11e6c17c..1df32546fe28 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -620,6 +620,7 @@ void *page_rmapping(struct page *page)
page = compound_head(page);
return __page_rmapping(page);
}
+EXPORT_SYMBOL_GPL(page_rmapping);
/*
* Return true if this page is mapped into pagetables.
--
2.17.1
next prev parent reply other threads:[~2020-07-07 14:48 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-07 14:45 [RFC v5 00/11] DAMON: Support Physical Memory Address Space Monitoring SeongJae Park
2020-07-07 14:45 ` [RFC v5 01/11] mm/damon/debugfs: Allow users to set initial monitoring target regions SeongJae Park
2020-07-07 14:45 ` [RFC v5 02/11] tools/damon: Support init target regions specification SeongJae Park
2020-07-07 14:45 ` [RFC v5 03/11] mm/damon-test: Add more unit tests for 'init_regions' SeongJae Park
2020-07-07 20:01 ` Brendan Higgins
2020-07-07 14:45 ` [RFC v5 04/11] selftests/damon/_chk_record: Do not check number of gaps SeongJae Park
2020-07-07 14:45 ` [RFC v5 05/11] Docs/damon: Document 'initial_regions' feature SeongJae Park
2020-07-07 14:45 ` SeongJae Park [this message]
2020-07-07 14:45 ` [RFC v5 07/11] mm/damon: Implement callbacks for physical memory monitoring SeongJae Park
2020-07-07 14:45 ` [RFC v5 08/11] mm/damon/debugfs: Support " SeongJae Park
2020-07-07 14:45 ` [RFC v5 09/11] tools/damon/record: " SeongJae Park
2020-07-07 14:45 ` [RFC v5 10/11] tools/damon/record: Support NUMA specific recording SeongJae Park
2020-07-07 14:45 ` [RFC v5 11/11] Docs/damon: Document physical memory monitoring support SeongJae Park
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