bin/153142: [zfs] ls -l outputs `ls: ./.zfs: Operation not supported'

[Hiroshi Fujishima]

>Number:         153142
>Category:       bin
>Synopsis:       [zfs] ls -l outputs `ls: ./.zfs: Operation not supported'
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Dec 14 07:10:11 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Hiroshi Fujishima
>Release:        8.1-RELEASE
>Organization:
>Environment:
FreeBSD backup8y.sakura.ad.jp 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:36:49 UTC 2010     root at mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64
>Description:
1. filesystem is zfs
2. snapdir property is visible
3. top directory of file system has .a file.

with above condition, ls -l outputs `ls: ./.zfs: Operation not supported'

>How-To-Repeat:
backup8y# zfs create -o mountpoint=/test -o snapdir=visible tank/test
backup8y# ls -l /test
total 0
dr-xr-xr-x  3 root  wheel  3 Dec 14 15:46 .zfs
backup8y# touch /test/.a
backup8y# ls -l /test
total 1
-rw-r--r--  1 root  wheel  0 Dec 14 15:46 .a
ls: /test/.zfs: Operation not supported
dr-xr-xr-x  3 root  wheel  3 Dec 14 15:46 .zfs


>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: