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dlm: clear ast_type when removing from astqueue

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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>
This commit is contained in:
David Teigland 2008-01-07 15:55:18 -06:00
parent 861e2369e9
commit 8a358ca8e7
1 changed files with 1 additions and 0 deletions
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fs/dlm/lock.c
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@ -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) { list_for_each_entry_safe(lkb, safe, &proc->asts, lkb_astqueue) {
lkb->lkb_ast_type = 0;
list_del(&lkb->lkb_astqueue); list_del(&lkb->lkb_astqueue);
dlm_put_lkb(lkb); dlm_put_lkb(lkb);
} }