Messages in this thread Patch in this message | | | From | Asai Thambi SP <> | Subject | [PATCH 8/9] mtip32xx: abort secure erase operation if the device is mounted | Date | Mon, 11 May 2015 15:56:08 -0700 |
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Signed-off-by: Sam Bradshaw <sbradshaw@micron.com> Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com> --- 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
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