From: Christoph Hellwig <hch@infradead.org>
To: Benny Halevy <bhalevy@primarydata.com>
Cc: Christoph Hellwig <hch@infradead.org>,
bfields@redhat.com, NFS list <linux-nfs@vger.kernel.org>
Subject: Re: state lock elimination
Date: Wed, 16 Oct 2013 11:22:38 -0700 [thread overview]
Message-ID: <20131016182238.GA2944@infradead.org> (raw)
In-Reply-To: <525E4C88.9050701@primarydata.com>
On Wed, Oct 16, 2013 at 11:21:28AM +0300, Benny Halevy wrote:
> I tried reducing the lock scope but the problem is that we hash state
> on objects with different scopes of access, particularly net/client vs. file
> and the hashing needs to be consistent and atomic.
Lists, Hashes or similar lookup data structures are generally not the
hard part, as it's enough to lock the data structure that the hash or
list hangs off. No need to involve looks in the structure pointed to.
next prev parent reply other threads:[~2013-10-16 18:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20131015211445.GA23636@infradead.org>
[not found] ` <525DB943.3010707@primarydata.com>
[not found] ` <20131016064243.GA28758@infradead.org>
2013-10-16 8:21 ` state lock elimination Benny Halevy
2013-10-16 18:22 ` Christoph Hellwig [this message]
[not found] ` <525E2C5C.4020104@primarydata.com>
[not found] ` <20131016064649.GB28758@infradead.org>
2013-10-16 8:45 ` nfs4_file usage Benny Halevy
2013-10-16 8:51 ` Christoph Hellwig
2013-10-16 12:18 ` Benny Halevy
2013-10-16 12:33 ` Christoph Hellwig
2013-10-16 12:48 ` Benny Halevy
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