linux-kernel - Re: [PATCH 1/4] staging/lustre/llite: cache jobid in lu

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Message-ID: <20131030131942.GC30087@kroah.com>
Date:	Wed, 30 Oct 2013 06:19:42 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Peng Tao <bergwolf@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	Andreas Dilger <andreas.dilger@...el.com>
Subject: Re: [PATCH 1/4] staging/lustre/llite: cache jobid in lu_env

On Wed, Oct 30, 2013 at 07:30:33PM +0800, Peng Tao wrote:
> We will switch to find jobid from /proc/self/environ and we need an
> extra memory copy to do it, so let's cache it in lu_env.
> It is then copied from lu_env to ll_inode_info upon every read/write.

What does this mean?

And you better not be reading proc values from within the kernel...

greg k-h
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