From a57d9064e4ee4e9882b922d0627be3d426004c69 Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Fri, 18 May 2018 16:05:51 +0800 Subject: ceph: flush pending works before shutdown super Pending works hold inode references, which cause "Busy inodes after unmount" warning. Signed-off-by: "Yan, Zheng" Signed-off-by: Ilya Dryomov --- fs/ceph/super.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'fs/ceph') diff --git a/fs/ceph/super.c b/fs/ceph/super.c index 40664e13cc0f..a092cdb69288 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -674,6 +674,13 @@ fail: return ERR_PTR(err); } +static void flush_fs_workqueues(struct ceph_fs_client *fsc) +{ + flush_workqueue(fsc->wb_wq); + flush_workqueue(fsc->pg_inv_wq); + flush_workqueue(fsc->trunc_wq); +} + static void destroy_fs_client(struct ceph_fs_client *fsc) { dout("destroy_fs_client %p\n", fsc); @@ -1089,6 +1096,8 @@ static void ceph_kill_sb(struct super_block *s) dout("kill_sb %p\n", s); ceph_mdsc_pre_umount(fsc->mdsc); + flush_fs_workqueues(fsc); + generic_shutdown_super(s); fsc->client->extra_mon_dispatch = NULL; -- cgit v1.2.3-70-g09d2