From: Zygo Blaxell <ce3g8jdj@umail.furryterror.org>
Date: Thu, 21 Mar 2019 14:51:09 +0000 (-0400)
Subject: zygo: silence WARN_ON(!rwsem_is_locked(&sb->s_umount));
X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=876dd4a7e69f81de25e33c6ba31ebdbebc400e8f;p=linux

zygo: silence WARN_ON(!rwsem_is_locked(&sb->s_umount));

(cherry picked from commit f4220b603990b1404d138ba3e99af7992d6def82)
(cherry picked from commit df85af7244c128d115ff46a669e51f3923ede522)
(cherry picked from commit 6fa149dea2f57bff5c5c4416aa42f8089e743d17)
(cherry picked from commit 056b77c2bd566a07e9c4dcb12c1304d1f01d63c5)
(cherry picked from commit 69602a72b10db4dc103c977629557ba9526db6ad)
---

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 335607b8c5c0..72f1c9ce1948 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -2463,7 +2463,7 @@ static void __writeback_inodes_sb_nr(struct super_block *sb, unsigned long nr,
 
 	if (!bdi_has_dirty_io(bdi) || bdi == &noop_backing_dev_info)
 		return;
-	WARN_ON(!rwsem_is_locked(&sb->s_umount));
+	/* Zygo: shut this up for testing: WARN_ON(!rwsem_is_locked(&sb->s_umount)); */
 
 	bdi_split_work_to_wbs(sb->s_bdi, &work, skip_if_busy);
 	wb_wait_for_completion(&done);