From: Adrian Hunter <adrian.hunter@intel.com>
To: Mark Deneen <mdeneen@gmail.com>
Cc: linux-mmc <linux-mmc@vger.kernel.org>
Subject: Re: MMC block discard / erase ioctl
Date: Thu, 14 Mar 2013 09:12:25 +0200 [thread overview]
Message-ID: <51417859.8070600@intel.com> (raw)
In-Reply-To: <CAP6JJ8_sJiz837i_rNdtdiDE38-4qj0_LEw6ThODLqF=gCTETw@mail.gmail.com>
On 13/03/13 16:51, Mark Deneen wrote:
> On Wed, Mar 13, 2013 at 3:59 AM, Adrian Hunter <adrian.hunter@intel.com
> <mailto:adrian.hunter@intel.com>> wrote:
>
> On 12/03/13 18:13, Mark Deneen wrote:
> > I assume that this never made it into mainline? I'm looking to do
> something
> > similar, and I was wondering if it somehow did make it in but in a
> different
> > form that I'm not seeing.
>
> There is BLKDISCARD and BLKSECDISCARD
>
> Perhaps MMC_IOC_CMD could be useful too
>
>
> Hmm. I tried the BLKDISCARD ioctl and received "ioctl: Operation not
> supported", so I started digging into the mmc layer to see if this ioctl was
> implemented. I must have been looking in the wrong place.
drivers/mmc/card/block.c supports REQ_DISCARD
prev parent reply other threads:[~2013-03-14 7:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAP6JJ88G-7XXU=a+ukj=EkS-=X7F19kQ_AHfga_ApHSwEKwT=A@mail.gmail.com>
2013-03-13 7:59 ` MMC block discard / erase ioctl Adrian Hunter
2013-03-13 14:53 ` Mark Deneen
[not found] ` <CAP6JJ8_sJiz837i_rNdtdiDE38-4qj0_LEw6ThODLqF=gCTETw@mail.gmail.com>
2013-03-14 7:12 ` Adrian Hunter [this message]
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