linux-kernel - [PATCH] Check for error returned by kthread

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Message-ID: <4623289A.1000101@sw.ru>
Date:	Mon, 16 Apr 2007 11:41:14 +0400
From:	Pavel Emelianov <xemul@...ru>
To:	sct@...hat.com, akpm@...ux-foundation.org,
	linux-ext4@...r.kernel.org
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	devel@...nvz.org
Subject: [PATCH] Check for error returned by kthread_create on creating journal
 thread

If the thread failed to create the subsequent wait_event
will hang forever.

This is likely to happen if kernel hits max_threads limit.

Will be critical for virtualization systems that limit the
number of tasks and kernel memory usage within the container.

View attachment "diff-jbd-check-start-journal-thread-return-value" of type "text/plain" (1718 bytes)