tree 67b62909056407b9b0f12ed894520509f82ef0b3
parent 85e05eaba5840385843fe61d8db191be84fe3ac6
author Milan Broz <mbroz@redhat.com> 1245661931 +0100
committer Greg Kroah-Hartman <gregkh@suse.de> 1246578059 -0700

dm: sysfs skip output when device is being destroyed

commit 4d89b7b4e4726893453d0fb4ddbb5b3e16353994 upstream.

Do not process sysfs attributes when device is being destroyed.

Otherwise code can cause
  BUG_ON(test_bit(DMF_FREEING, &md->flags));
in dm_put() call.

Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>