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Date: Mon, 21 Feb 2011 18:43:46 -0700
Message-ID: <AANLkTi=UMbOYFORyTvicCvAMEd=dig7xaROMLdkcfhGW@mail.gmail.com>
Subject: Re: SDHC card affected by preemption model in 2.6.35
From: Dave Hylands <dhylands@gmail.com>
To: Johannes Reif <reif@corscience.de>
Cc: "S, Venkatraman" <svenkatr@ti.com>,
	Mathieu Poirier <mathieu.poirier@canonical.com>,
	Madhusudhan Chikkature <madhu.cr@ti.com>,
	linux-omap <linux-omap@vger.kernel.org>
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diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 11869fa..90a17ca 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -2047,6 +2047,15 @@ repeat:
 				move_linked_works(work, scheduled, &n);

 		process_scheduled_works(rescuer);
+
+		/*
+		 * Leave this gcwq.  If keep_working() is %true, notify a
+		 * regular worker; otherwise, we end up with 0 concurrency
+		 * and stalling the execution.
+		 */
+		if (keep_working(gcwq))
+			wake_up_worker(gcwq);
+
 		spin_unlock_irq(&gcwq->lock);
 	}