linux-kernel - Re: [PATCH 01/45] Create a dynamically sized pool of threads for doing very slow work items [ver #41]

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Message-ID: <18617.1227263040@redhat.com>
Date:	Fri, 21 Nov 2008 10:24:00 +0000
From:	David Howells <dhowells@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	dhowells@...hat.com, trond.myklebust@....uio.no,
	viro@...IV.linux.org.uk, nfsv4@...ux-nfs.org,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 01/45] Create a dynamically sized pool of threads for doing very slow work items [ver #41]

Andrew Morton <akpm@...ux-foundation.org> wrote:

> umm, if they're slow, why not create a kernel thread per operation? 
> Why add the thread pool?

Because if someone does a tar of, say, a kernel tree, that'll create one
thread per file...  This provides a limiter - and makes sure there are threads
immediately available.

David
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