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    Subject[patch 07/28] sysfs: fix hardlink count on device_move
    2.6.27-stable review patch.  If anyone has any objections, please let us know.

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

    From: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>

    commit 0f58b44582001c8bcdb75f36cf85ebbe5170e959 upstream.

    Update directory hardlink count when moving kobjects to a new parent.
    Fixes the following problem which occurs when several devices are
    moved to the same parent and then unregistered:

    > ls -laF /sys/devices/css0/defunct/
    > total 0
    > drwxr-xr-x 4294967295 root root 0 2009-07-14 17:02 ./
    > drwxr-xr-x 114 root root 0 2009-07-14 17:02 ../
    > drwxr-xr-x 2 root root 0 2009-07-14 17:01 power/
    > -rw-r--r-- 1 root root 4096 2009-07-14 17:01 uevent

    Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    fs/sysfs/dir.c | 2 ++
    1 file changed, 2 insertions(+)

    --- a/fs/sysfs/dir.c
    +++ b/fs/sysfs/dir.c
    @@ -914,8 +914,10 @@ again:
    /* Remove from old parent's list and insert into new parent's list. */
    sysfs_unlink_sibling(sd);
    sysfs_get(new_parent_sd);
    + drop_nlink(old_parent->d_inode);
    sysfs_put(sd->s_parent);
    sd->s_parent = new_parent_sd;
    + inc_nlink(new_parent->d_inode);
    sysfs_link_sibling(sd);

    out_unlock:



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