linux-kernel - Re: [PATCH RESEND] block: allow WRITE_SAME commands with the SG

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Message-ID: <b62fd71d-0831-c402-1d09-c78779dee060@kernel.dk>
Date:   Mon, 19 Dec 2016 08:34:33 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     Mauricio Faria de Oliveira <mauricfo@...ux.vnet.ibm.com>,
        linux-block@...r.kernel.org
Cc:     hch@...radead.org, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, pbonzini@...hat.com,
        latha@...ux.vnet.ibm.com, manjuhr1@...ibm.com
Subject: Re: [PATCH RESEND] block: allow WRITE_SAME commands with the SG_IO
 ioctl

On 12/15/2016 10:48 AM, Mauricio Faria de Oliveira wrote:
> The WRITE_SAME commands are not present in the blk_default_cmd_filter
> write_ok list, and thus are failed with -EPERM when the SG_IO ioctl()
> is executed without CAP_SYS_RAWIO capability (e.g., unprivileged users).
> [ sg_io() -> blk_fill_sghdr_rq() > blk_verify_command() -> -EPERM ]

Added for 4.10, thanks.

-- 
Jens Axboe