From 0f58b44582001c8bcdb75f36cf85ebbe5170e959 Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Tue, 14 Jul 2009 17:56:15 +0200 Subject: [PATCH] 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 Cc: stable Signed-off-by: Greg Kroah-Hartman --- fs/sysfs/dir.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index d88d0fac9fa5..14f2d71ea3ce 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -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: