From: SeongJae Park <[email protected]> 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 <[email protected]> --- 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
