From 629e8ea9057f77a9ebbad94c0ed2b09c0d78521c Mon Sep 17 00:00:00 2001 From: Erqi Chen Date: Wed, 24 Jul 2019 10:26:09 +0800 Subject: [PATCH] ceph: clear page dirty before invalidate page clear_page_dirty_for_io(page) before mapping->a_ops->invalidatepage(). invalidatepage() clears page's private flag, if dirty flag is not cleared, the page may cause BUG_ON failure in ceph_set_page_dirty(). Cc: stable@vger.kernel.org Link: https://tracker.ceph.com/issues/40862 Signed-off-by: Erqi Chen Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov --- fs/ceph/addr.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index e078cc55b989e..b3c8b886bf647 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -913,8 +913,9 @@ get_more_pages: if (page_offset(page) >= ceph_wbc.i_size) { dout("%p page eof %llu\n", page, ceph_wbc.i_size); - if (ceph_wbc.size_stable || - page_offset(page) >= i_size_read(inode)) + if ((ceph_wbc.size_stable || + page_offset(page) >= i_size_read(inode)) && + clear_page_dirty_for_io(page)) mapping->a_ops->invalidatepage(page, 0, PAGE_SIZE); unlock_page(page); -- 2.39.5