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ceph: flush pending works before shutdown super

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Pending works hold inode references, which cause "Busy inodes after
unmount" warning.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Yan, Zheng 2018-05-18 16:05:51 +08:00 committed by Ilya Dryomov
parent 12b69d5f6f
commit a57d9064e4
1 changed files with 9 additions and 0 deletions
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9
fs/ceph/super.c
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@ -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;