Date: Fri, 8 Aug 2008 22:17:13 GMT From: GW <gw.freebsd@tnode.com> To: freebsd-gnats-submit@FreeBSD.org Subject: bin/126384: find doesn't support whiteout entries yet, but part of code already present Message-ID: <200808082217.m78MHDRi036108@www.freebsd.org> Resent-Message-ID: <200808082220.m78MK0Ic008059@freefall.freebsd.org>
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>Number: 126384
>Category: bin
>Synopsis: find doesn't support whiteout entries yet, but part of code already present
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Fri Aug 08 22:20:00 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator: GW
>Release: 7-STABLE
>Organization:
>Environment:
FreeBSD a.b 7.0-STABLE FreeBSD 7.0-STABLE #3: Mon Aug 4 10:28:12 CEST 2008 root@a.b:/usr/src/sys/amd64/compile/MY amd64
>Description:
The find command has a few lines of code dedicated to whiteout support (avalible in UFS, useful for unionfs), but it has not been implemented to work. Find utility accepts a new "-type w", but then it just ignores whiteout entries entirely.
This is because some code is missing in /usr/src/usr.bin/find/find.c at line 211 where it now just says to skip:
#ifdef FTS_W
case FTS_W:
continue;
#endif /* FTS_W */
Unionfs (at least the one in HEAD) is a useful file system that uses whiteouts and it would be great that all utilities would have support for it. As I can see it is also not yet implemented in HEAD for find.
>How-To-Repeat:
# mkdir a b
# touch b/test
# mount -t unionfs a b
# rm -f b/test
# ls -lW b
total 0
w--------- 0 root wheel 0 Jan 1 1970 test
<< Correct output.
# find b -type w
<< No output, but it should be.
# find b -type w -exec ls -lWd {} \;
<< Same with such command.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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