From: Pavel Emelianov <xemul@sw.ru>
Date: Tue, 8 May 2007 07:30:42 +0000 (-0700)
Subject: jbd: check for error returned by kthread_create on creating journal thread
X-Git-Tag: v2.6.22-rc1~633
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=97f067846786d255888ccad14e2f38a1f63d8e9b;p=pandora-kernel.git

jbd: 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.

(akpm: JBD should be converted fully to the kthread API: kthread_should_stop()
and kthread_stop()).

Cc: <linux-ext4@vger.kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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