From: Yan, Zheng <zyan@redhat.com>
Date: Wed, 30 Aug 2017 03:27:29 +0000 (+0800)
Subject: ceph: remove stale check in ceph_invalidatepage()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b072d774664b690768bdf7e068ee95a161e5f107;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

ceph: remove stale check in ceph_invalidatepage()

Both set_page_dirty and truncate_complete_page should be called
for locked page, they can't race with each other.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
---

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index d82036e19083..b6ac3da9ddab 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -152,17 +152,10 @@ static void ceph_invalidatepage(struct page *page, unsigned int offset,
 
 	ceph_invalidate_fscache_page(inode, page);
 
+	WARN_ON(!PageLocked(page));
 	if (!PagePrivate(page))
 		return;
 
-	/*
-	 * We can get non-dirty pages here due to races between
-	 * set_page_dirty and truncate_complete_page; just spit out a
-	 * warning, in case we end up with accounting problems later.
-	 */
-	if (!PageDirty(page))
-		pr_err("%p invalidatepage %p page not dirty\n", inode, page);
-
 	ClearPageChecked(page);
 
 	dout("%p invalidatepage %p idx %lu full dirty page\n",