linux-kernel - Re: [PATCH v1] vhost: avoid large order allocations

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20140513105741.0cc3c159@bee>
Date:	Tue, 13 May 2014 10:57:41 +0200
From:	Michael Mueller <mimu@...ux.vnet.ibm.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	borntraeger@...ibm.com, cornelia.huck@...ibm.com,
	ddongch@...ibm.com, mimu@...ux.vnet.ibm.com
Subject: Re: [PATCH v1] vhost: avoid large order allocations

On Tue, 13 May 2014 11:40:49 +0300
"Michael S. Tsirkin" <mst@...hat.com> wrote:

> Please dont' do this, extra indirection hurts performance.
> Instead, please change vhost_net_open and scsi to allocate the whole
> structure with vmalloc if kmalloc fails, along the lines of
> 74d332c13b2148ae934ea94dac1745ae92efe8e5

Thanks for pointing us to: net: extend net_device allocation to vmalloc()

We'll try to adapt.

Michael  

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/