libata: wrap schedule_timeout_uninterruptible() in loop

Tasks in uninterruptible sleep might be woken up by unrelated events
and should check whether the condition it was waiting for has actually
triggered.  Wrap schedule_timeout_uninterruptible() in loop to achieve
it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2007-10-09 14:58:33 +09:00 committed by Jeff Garzik
parent 94ff3d5408
commit 9073868376

View File

@ -2183,7 +2183,8 @@ int ata_eh_reset(struct ata_link *link, int classify,
"(errno=%d), retrying in %u secs\n",
rc, (jiffies_to_msecs(delta) + 999) / 1000);
schedule_timeout_uninterruptible(delta);
while (delta)
delta = schedule_timeout_uninterruptible(delta);
}
if (rc == -EPIPE ||