Commit 0f58b445 authored Jul 14, 2009 by Peter Oberparleiter Committed by Greg Kroah-Hartman Jul 28, 2009

sysfs: fix hardlink count on device_move



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>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

parent 4733fd32

fs/sysfs/dir.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -939,8 +939,10 @@ 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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