From: David Teigland <teigland@redhat.com>
To: Kent Overstreet <koverstreet@google.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>,
akpm@linux-foundation.org, tj@kernel.org, axboe@kernel.dk,
nab@linux-iscsi.org, bcrl@kvack.org,
linux-kernel@vger.kernel.org,
Stephen Rothwell <sfr@canb.auug.org.au>,
Fengguang Wu <fengguang.wu@intel.com>
Subject: Re: [PATCH 03/10] idr: Rewrite ida
Date: Fri, 21 Jun 2013 12:33:30 -0400 [thread overview]
Message-ID: <20130621163330.GA6503@redhat.com> (raw)
In-Reply-To: <20130619233836.GA6986@localhost>
On Wed, Jun 19, 2013 at 04:38:36PM -0700, Kent Overstreet wrote:
> On Wed, Jun 19, 2013 at 10:40:22AM +0100, Steven Whitehouse wrote:
> > Millions of IDs is something that is fairly normal for DLM, since there
> > will be two DLM locks per cached inode with GFS2 and people tend to use
> > it on pretty large servers with lots of memory,
>
> Thanks, I wasn't aware of that. Is the 31 bits for the id limitation an
> issue for you? While I'm at changing ids to longs should be fairly
> trivial.
There is a dlm_lkb struct in memory for each id, so 31 bits will not
be a problem.
Dave
next prev parent reply other threads:[~2013-06-21 16:33 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-19 0:02 [PATCH v2] lib/idr.c rewrite, percpu ida/tag allocator Kent Overstreet
2013-06-19 0:02 ` [PATCH 03/10] idr: Rewrite ida Kent Overstreet
2013-06-19 9:40 ` Steven Whitehouse
2013-06-19 23:38 ` Kent Overstreet
2013-06-21 16:33 ` David Teigland [this message]
2013-06-19 0:02 ` [PATCH 04/10] idr: Percpu ida Kent Overstreet
2013-06-19 0:02 ` [PATCH 05/10] idr: Kill old deprecated idr interfaces Kent Overstreet
2013-06-19 0:02 ` [PATCH 06/10] idr: Rename idr_get_next() -> idr_find_next() Kent Overstreet
2013-06-19 0:02 ` [PATCH 08/10] idr: Reimplement idr on top of ida/radix trees Kent Overstreet
-- strict thread matches above, loose matches on Subject: below --
2013-07-06 5:08 [PATCH v3] lib/idr.c rewrite, percpu ida/tag allocator Kent Overstreet
2013-07-06 5:08 ` [PATCH 03/10] idr: Rewrite ida Kent Overstreet
2013-08-07 17:34 IDA/IDR rewrite, percpu ida Kent Overstreet
2013-08-07 17:34 ` [PATCH 03/10] idr: Rewrite ida Kent Overstreet
2013-08-07 20:22 ` Tejun Heo
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