Bug 9204

Most recent kernel where this bug did not occur:
Distribution: kubuntu 7.10 gutsy
Hardware Environment: MacBookPro 3.1
Software Environment: /home partition shared with OSX
Problem Description:


i'm using hfsplus for my /home (it is shared with osx). i'm having problems with hard links on hfsplus.
the link count for a file with hard links drops from n to 0 when removing one linked file.

Steps to reproduce:

install diskdev-cmds from:
 http://gentoo.osuosl.org/distfiles/diskdev_cmds-332.14.tar.gz
 http://gentoo.osuosl.org/distfiles/diskdev_cmds-332.14.patch.bz2

 make -f Makefile.lnx
interesting binaries are in newfs_hfs.tproj/ and fsck_hfs.tproj/

create a filesystem:
 dd if=/dev/zero of=/tmp/hfsplus bs=1M count=2
 newfs_hfs /tmp/hfsplus
 mkdir /tmp/mnt
 mount -oloop /tmp/hfsplus /tmp/mnt
 cd /tmp/mnt
 echo foo > foo
 ln foo foo1
 ln foo foo2
 ln foo foo3

# now check the link count:
 ls -laFi
# it is ok

# now unlink foo3
 rm foo3
# check link count again
 ls -laFi
# link count is down to 0