Commit 8a358ca8 authored Jan 07, 2008 by David Teigland

dlm: clear ast_type when removing from astqueue



The lkb_ast_type field indicates whether the lkb is on the astqueue list.
When clearing locks for a process, lkb's were being removed from the astqueue
list without clearing the field.  If release_lockspace then happened
immediately afterward, it could try to remove the lkb from the list a second
time.

Appears when process calls libdlm dlm_release_lockspace() which first
closes the ls dev triggering clear_proc_locks, and then removes the ls
(a write to control dev) causing release_lockspace().

Signed-off-by: David Teigland <teigland@redhat.com>

parent 861e2369

fs/dlm/lock.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -4678,6 +4678,7 @@ void dlm_clear_proc_locks(struct dlm_ls ls, struct dlm_user_proc proc)
		}

		list_for_each_entry_safe(lkb, safe, &proc->asts, lkb_astqueue) {
		lkb->lkb_ast_type = 0;
		list_del(&lkb->lkb_astqueue);
		dlm_put_lkb(lkb);
		}