From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: [PATCH] sg_io: allow UNMAP and WRITE SAME without CAP_SYS_RAWIO Date: Wed, 01 Aug 2012 17:53:44 +0200 Message-ID: <50195108.1090105@redhat.com> References: <1342801801-15617-1-git-send-email-pbonzini@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1342801801-15617-1-git-send-email-pbonzini@redhat.com> Sender: linux-kernel-owner@vger.kernel.org To: axboe@kernel.dk Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org List-Id: linux-scsi@vger.kernel.org Il 20/07/2012 18:30, Paolo Bonzini ha scritto: > These commands cannot be issued right now without giving CAP_SYS_RAWIO to > the process who wishes to send them. These commands can be useful also to > non-privileged programs who have access to the block devices. For example > a virtual machine monitor needs them to forward trim/discard to host disks. > > Signed-off-by: Paolo Bonzini > --- > block/scsi_ioctl.c | 3 ++ > 1 files changed, 3 insertions(+), 0 deletions(-) > > diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c > index 260fa80..dd71f18 100644 > --- a/block/scsi_ioctl.c > +++ b/block/scsi_ioctl.c > @@ -168,13 +168,16 @@ static void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter) > /* Basic writing commands */ > __set_bit(WRITE_6, filter->write_ok); > __set_bit(WRITE_10, filter->write_ok); > + __set_bit(WRITE_SAME, filter->write_ok); > __set_bit(WRITE_VERIFY, filter->write_ok); > __set_bit(WRITE_12, filter->write_ok); > __set_bit(WRITE_VERIFY_12, filter->write_ok); > __set_bit(WRITE_16, filter->write_ok); > + __set_bit(WRITE_SAME_16, filter->write_ok); > __set_bit(WRITE_LONG, filter->write_ok); > __set_bit(WRITE_LONG_2, filter->write_ok); > __set_bit(ERASE, filter->write_ok); > + __set_bit(UNMAP, filter->write_ok); > __set_bit(GPCMD_MODE_SELECT_10, filter->write_ok); > __set_bit(MODE_SELECT, filter->write_ok); > __set_bit(LOG_SELECT, filter->write_ok); > Jens, can this go in 3.6 as well? Paolo