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From: Lars Ellenberg <lars.ellenberg@linbit.com>
To: David Rientjes <rientjes@google.com>
Cc: Jens Axboe <axboe@fb.com>,
	drbd-dev@lists.linbit.com, linux-kernel@vger.kernel.org
Subject: Re: [DRBD-user] [patch 1/2] block, drbd: fix drbd_req_new() initialization
Date: Tue, 10 Mar 2015 11:38:38 +0100	[thread overview]
Message-ID: <20150310103838.GB3961@soda.linbit> (raw)
In-Reply-To: <alpine.DEB.2.10.1503071623250.31688@chino.kir.corp.google.com>

On Sat, Mar 07, 2015 at 04:24:02PM -0800, David Rientjes wrote:
> mempool_alloc() does not support __GFP_ZERO since elements may come from
> memory that has already been released by mempool_free().
> 
> Remove __GFP_ZERO from mempool_alloc() in drbd_req_new() and properly
> initialize it to 0.

We used to have the explicit memset there,
but then changed that, because

I was under the impression that since
2007-07-17 d07dbea, Slab allocators: support __GFP_ZERO in all allocators
it was supported?

	Lars Ellenberg


  parent reply	other threads:[~2015-03-10 10:46 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-08  0:24 David Rientjes
2015-03-08  0:24 ` [patch 2/2] block, drbd: use mempool_create_slab_pool() David Rientjes
2015-03-08  0:33 ` [patch 1/2] block, drbd: fix drbd_req_new() initialization Jens Axboe
2015-03-08  0:53   ` David Rientjes
2015-03-08  1:03     ` Jens Axboe
2015-03-08  1:27       ` David Rientjes
2015-03-08  1:45         ` Jens Axboe
2015-03-13 23:24         ` David Rientjes
2015-03-10 10:38 ` Lars Ellenberg [this message]
2015-03-10 19:28   ` [DRBD-user] " David Rientjes

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