mainline inclusion
from mainline-5.6-rc1
commit a3d1e7eb5abe3aa1095bc75d1a6760d3809bd672
category: bugfix
bugzilla: 24454
CVE: NA

---------------------------

two requirements: no file creations in IS_DEADDIR and no cross-directory
renames whatsoever.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Conflicts:
 fs/debugfs/inode.c
 fs/libfs.c
 fs/tracefs/inode.c
 include/linux/debugfs.h
 include/linux/fs.h
 include/linux/tracefs.h
 kernel/trace/trace.c
functional changes:
 replace current_time() with current_fs_time()
 remove call to fsnotify_rmdir() and fsnotify_unlink()
Signed-off-by: Nyu kuai <yukuai3@huawei.com>
Reviewed-by: Nzhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>