Hi: On 2021/3/20 22:11, Rafael Aquini wrote: > On Sat, Mar 20, 2021 at 05:36:57AM -0400, Miaohe Lin wrote: >> The !PageLocked() check is implicitly done in PageMovable(). Remove this >> explicit one. >> > > I'd just keep the explicit assertion in place, regardless. > But if you're going to stick with this patch, please fix it because it's > removing the wrong assertion. Many thanks for your reply. I should have a coffee when I make this patch! :( Will fix it. Many thanks for remind! > > >> Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> >> --- >> mm/migrate.c | 1 - >> 1 file changed, 1 deletion(-) >> >> diff --git a/mm/migrate.c b/mm/migrate.c >> index 47df0df8f21a..e4ca5ef508ea 100644 >> --- a/mm/migrate.c >> +++ b/mm/migrate.c >> @@ -146,7 +146,6 @@ 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); >> -- >> 2.19.1 >> >> > > . >