linux-kernel - Re: [PATCH v1 11/11] locks: give the blocked

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Message-ID: <20130604144640.GA7730@infradead.org>
Date:	Tue, 4 Jun 2013 07:46:40 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	"Stefan (metze) Metzmacher" <metze@...ba.org>
Cc:	Jeff Layton <jlayton@...hat.com>, viro@...iv.linux.org.uk,
	matthew@....cx, bfields@...ldses.org, linux-cifs@...r.kernel.org,
	linux-nfs@...r.kernel.org, cluster-devel@...hat.com,
	sage@...tank.com, samba-technical@...ts.samba.org,
	Trond.Myklebust@...app.com, linux-kernel@...r.kernel.org,
	linux-afs@...ts.infradead.org, dhowells@...hat.com,
	smfrench@...il.com, linux-fsdevel@...r.kernel.org,
	ceph-devel@...r.kernel.org, akpm@...ux-foundation.org,
	swhiteho@...hat.com
Subject: Re: [PATCH v1 11/11] locks: give the blocked_hash its own spinlock

Having RCU for modification mostly workloads never is a good idea, so
I don't think it makes sense to mention it here.

If you care about the overhead it's worth trying to use per-cpu lists,
though.

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