Messages in this thread Patch in this message | | | Date | Thu, 13 Aug 2009 12:40:28 -0700 | From | Greg KH <> | Subject | [patch 07/28] sysfs: fix hardlink count on device_move |
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2.6.27-stable review patch. If anyone has any objections, please let us know.
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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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