linux-kernel - Workqueue behaviour - Synchronization within submitted work

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Message-ID: <CAEtk5gd=DwbLs4baj2NABPRs6sXjehLUiKDKhKUr0UfFwwVibQ@mail.gmail.com>
Date:	Wed, 20 Mar 2013 17:56:38 -0700
From:	Vijay <thelonejoker@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Workqueue behaviour - Synchronization within submitted work

In the new workqueue architecture, I have a question regarding
synchronization between different "work" submitted to the same
workqueue. For example:

* I submit two sets of "work" A and B, to a common driver specific
workqueue (W).
* Each A and B, meddle with a certain shared data SD.
* Am I guaranteed serialized execution of A and B, or should I play
safe and use a semaphore (acquire/release) with A and B ?

Thanks,
Vijay

PS: Please CC me in the reply.
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