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| author |   Miaohe Lin <linmiaohe@huawei.com> | 2021-05-04 18:37:04 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-05 11:27:24 -0700 |
| commit | 606a6f71a25accfc960a5063c23717ff07aa43a3 (patch) | |
| tree | 017ad87a992f45203266b664a3f2eaaa9f727abb /mm | |
| parent | mm: fs: invalidate BH LRU during page migration (diff) | |
| download | wireguard-linux-606a6f71a25accfc960a5063c23717ff07aa43a3.tar.xz wireguard-linux-606a6f71a25accfc960a5063c23717ff07aa43a3.zip | |
mm/migrate.c: make putback_movable_page() static
Patch series "Cleanup and fixup for mm/migrate.c", v3.
This series contains cleanups to remove unnecessary VM_BUG_ON_PAGE and rc
!= MIGRATEPAGE_SUCCESS check. Also use helper function to remove some
duplicated codes. What's more, this fixes potential deadlock in NUMA
balancing shared exec THP case and so on. More details can be found in
the respective changelogs.
This patch (of 5):
The putback_movable_page() is just called by putback_movable_pages() and
we know the page is locked and both PageMovable() and PageIsolated() is
checked right before calling putback_movable_page(). So we make it static
and remove all the 3 VM_BUG_ON_PAGE().
Link: https://lkml.kernel.org/r/20210325131524.48181-1-linmiaohe@huawei.com
Link: https://lkml.kernel.org/r/20210325131524.48181-2-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Rafael Aquini <aquini@redhat.com>
Cc: Alistair Popple <apopple@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/migrate.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index b5fbeb4bf49a..1e1f8324cefe 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -118,15 +118,10 @@ out: return -EBUSY; } -/* It should be called on page which is PG_movable */ -void putback_movable_page(struct page *page) +static void putback_movable_page(struct page *page) { struct address_space *mapping; - VM_BUG_ON_PAGE(!PageLocked(page), page); - VM_BUG_ON_PAGE(!PageMovable(page), page); - VM_BUG_ON_PAGE(!PageIsolated(page), page); - mapping = page_mapping(page); mapping->a_ops->putback_page(page); __ClearPageIsolated(page); |