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Date: Wed, 23 Jul 2014 08:16:58 -0400 (EDT) From: Mikulas Patocka <mpatocka@...hat.com> To: "Zhang, Yanmin" <yanmin_zhang@...ux.intel.com> cc: "xinhui.pan" <xinhuix.pan@...el.com>, linux-kernel@...r.kernel.org, agk@...hat.com, snitzer@...hat.com, dm-devel@...hat.com, "Liu, ShuoX" <shuox.liu@...el.com> Subject: Re: [dm-devel] [PATCH] md/dm-ioctl.c: optimize memory allocation in copy_params On Wed, 23 Jul 2014, Zhang, Yanmin wrote: > On 2014/7/22 9:23, Alasdair G Kergon wrote: > > > > > On 2014/7/9 6:39, Mikulas Patocka wrote: > > > > Which ioctl with more than 16kB > > > > arguments do you use? > > Unanswered. Let's ask the same question in a different way: > > > > Please supply the output of these three commands on the real-world system on > > which you believe that that particular allocation is causing you a problem: > > dmsetup info -c > > dmsetup table > > dmsetup status > > Android doesn't include the command. We compiled lvm2-2_02_107.tar.gz and copy > dmsetup to the board. But command reports No devices. > > # /data/bin/dmsetup info > No devices found So, it means that you do not use device mapper at all. So, why are you trying to change memory allocation in device mapper? Mikulas -- 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/
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