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From: Jason Gunthorpe <jgg@ziepe.ca>
To: Matthew Wilcox <willy@infradead.org>
Cc: hans.westgaard.ry@oracle.com,
	"Doug Ledford" <dledford@redhat.com>,
	"Matthew Wilcox" <mawilcox@microsoft.com>,
	linux-rdma@vger.kernel.org,
	"Håkon Bugge" <haakon.bugge@oracle.com>,
	"Parav Pandit" <parav@mellanox.com>,
	"Jack Morgenstein" <jackm@dev.mellanox.co.il>,
	"Pravin Shedge" <pravin.shedge4linux@gmail.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] IB/mad: Agent registration is process context only
Date: Tue, 12 Jun 2018 14:38:28 -0600	[thread overview]
Message-ID: <20180612203828.GH6314@ziepe.ca> (raw)
In-Reply-To: <20180608174218.32455-2-willy@infradead.org>

On Fri, Jun 08, 2018 at 10:42:17AM -0700, Matthew Wilcox wrote:
> From: Matthew Wilcox <mawilcox@microsoft.com>
> 
> Document this (it's implicitly true due to sleeping operations already
> in use in both registration and deregistration).  Use this fact to use
> spin_lock_irq instead of spin_lock_irqsave.  This improves performance
> slightly.
> 
> Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
> ---
>  drivers/infiniband/core/mad.c | 16 +++++++++-------
>  1 file changed, 9 insertions(+), 7 deletions(-)

In the mean time, this patch is straightfoward, applied to the interm
for-next..

Jason

  reply	other threads:[~2018-06-12 20:38 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-08 17:42 [PATCH 0/2] Convert IB/mad to use an IDR for agent IDs Matthew Wilcox
2018-06-08 17:42 ` [PATCH 1/2] IB/mad: Agent registration is process context only Matthew Wilcox
2018-06-12 20:38   ` Jason Gunthorpe [this message]
2018-06-08 17:42 ` [PATCH 2/2] IB/mad: Use IDR for agent IDs Matthew Wilcox
2018-06-10  6:30   ` Leon Romanovsky
2018-06-10 10:43     ` Matthew Wilcox
2018-06-10 12:25       ` Leon Romanovsky
2018-06-10 20:30         ` Jason Gunthorpe
2018-06-11  4:34           ` Leon Romanovsky
2018-06-11  4:42             ` Jason Gunthorpe
2018-06-11  6:19               ` jackm
2018-06-11 16:19                 ` Jason Gunthorpe
2018-06-12  4:59                   ` jackm
2018-06-12 14:33                     ` Jason Gunthorpe
2018-06-12  8:50   ` jackm
2018-06-12 12:12     ` Matthew Wilcox
2018-06-12 20:33   ` Jason Gunthorpe
2018-06-13  0:07     ` Matthew Wilcox
2018-06-13  7:36       ` Leon Romanovsky
2018-06-13  7:56   ` jackm

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