From: Nikhilesh Reddy <reddyn@codeaurora.org>
To: Al Viro <viro@zeniv.linux.org.uk>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Downsides to using synchronize_rcu_expedited instead if synchronize_rcu in namespace_unlock
Date: Wed, 30 Mar 2016 11:25:51 -0700 [thread overview]
Message-ID: <56FC1A2F.5090504@codeaurora.org> (raw)
Hi
I was wondering why namespace_unlock calls synchronize_rcu and not
synchronize_rcu_expedited
Testing shows there is about 20-25 ms saved during an unmount when using
synchronize_rcu_expedited
is there a downside to such a change?
Please let me know.
I would really appreciate any help understanding any pitfalls.
--
Thanks
Nikhilesh Reddy
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.
reply other threads:[~2016-03-30 18:25 UTC|newest]
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