Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752855AbbEKW4Q (ORCPT ); Mon, 11 May 2015 18:56:16 -0400 Received: from mailout.micron.com ([137.201.242.129]:20605 "EHLO mailout.micron.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752174AbbEKW4N (ORCPT ); Mon, 11 May 2015 18:56:13 -0400 From: Asai Thambi SP Subject: [PATCH 8/9] mtip32xx: abort secure erase operation if the device is mounted To: Jens Axboe CC: , Sam Bradshaw , Selvan Mani Message-ID: <55513388.9030600@micron.com> Date: Mon, 11 May 2015 15:56:08 -0700 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.0 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-TM-AS-Product-Ver: SMEX-11.0.0.4179-7.500.1018-21536.005 X-TM-AS-Result: No--6.686900-0.000000-31 X-TM-AS-User-Approved-Sender: Yes X-TM-AS-User-Blocked-Sender: No X-MT-CheckInternalSenderRule: True Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1350 Lines: 38 Signed-off-by: Sam Bradshaw Signed-off-by: Asai Thambi S P --- drivers/block/mtip32xx/mtip32xx.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 0b223e3..f8c12e1 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -2147,6 +2147,18 @@ static int exec_drive_taskfile(struct driver_data *dd, fis.lba_hi, fis.device); + /* Check for secure erase while fs mounted */ + if ((fis.command == ATA_CMD_SEC_ERASE_PREP) || + (fis.command == ATA_CMD_SEC_ERASE_UNIT) || + (fis.command == 0xFC && fis.features == 0x12)) { + if (dd->bdev && dd->bdev->bd_holders > 0) { + dev_warn(&dd->pdev->dev, "Drive erase aborted due to non-zero refcount (%d)\n", + dd->bdev->bd_holders); + err = -ERESTARTSYS; + goto abort; + } + } + /* check for erase mode support during secure erase.*/ if ((fis.command == ATA_CMD_SEC_ERASE_UNIT) && outbuf && (outbuf[0] & MTIP_SEC_ERASE_MODE)) { -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/