提交 8712e553 编写于 作者: N NeilBrown 提交者: Linus Torvalds

[PATCH] md: make sure mdthreads will always respond to kthread_stop

There are still a couple of cases where md threads (the resync/recovery
thread) is not interruptible since the change to use kthreads.  All places
there it tests "signal_pending", it should also test kthread_should_stop,
as with this patch.
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 6693e74a
......@@ -3568,7 +3568,8 @@ static void md_do_sync(mddev_t *mddev)
mddev->curr_resync = 2;
try_again:
if (signal_pending(current)) {
if (signal_pending(current) ||
kthread_should_stop()) {
flush_signals(current);
set_bit(MD_RECOVERY_INTR, &mddev->recovery);
goto skip;
......@@ -3590,8 +3591,9 @@ static void md_do_sync(mddev_t *mddev)
*/
continue;
prepare_to_wait(&resync_wait, &wq, TASK_INTERRUPTIBLE);
if (!signal_pending(current)
&& mddev2->curr_resync >= mddev->curr_resync) {
if (!signal_pending(current) &&
!kthread_should_stop() &&
mddev2->curr_resync >= mddev->curr_resync) {
printk(KERN_INFO "md: delaying resync of %s"
" until %s has finished resync (they"
" share one or more physical units)\n",
......@@ -3697,7 +3699,7 @@ static void md_do_sync(mddev_t *mddev)
}
if (signal_pending(current)) {
if (signal_pending(current) || kthread_should_stop()) {
/*
* got a signal, exit.
*/
......
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