diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2017-05-19 15:37:30 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-06-20 10:30:26 +0200 |
| commit | 0493f6fe5bdee8ac101a1a0c449971c2d4665e99 (patch) | |
| tree | f863aaf707e68d23263634ec9246cb609c8e8a50 /drivers/mmc/core/queue.h | |
| parent | 5ec1239694c74e8feebe967bf467081445622004 (diff) | |
mmc: block: Move boot partition locking into a driver op
This moves the boot partition lock command (issued from sysfs)
into a custom block layer request, just like the ioctl()s,
getting rid of yet another instance of mmc_get_card().
Since we now have two operations issuing special DRV_OP's, we
rename the result variable ->drv_op_result.
Tested by locking the boot partition from userspace:
> cd /sys/devices/platform/soc/80114000.sdi4_per2/mmc_host/mmc3/
mmc3:0001/block/mmcblk3/mmcblk3boot0
> echo 1 > ro_lock_until_next_power_on
[ 178.645324] mmcblk3boot1: Locking boot partition ro until next power on
[ 178.652221] mmcblk3boot0: Locking boot partition ro until next power on
Also tested this with a huge dd job in the background: it
is now possible to lock the boot partitions on the card even
under heavy I/O.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core/queue.h')
| -rw-r--r-- | drivers/mmc/core/queue.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h index 1e6062eb3e07..361b46408e0f 100644 --- a/drivers/mmc/core/queue.h +++ b/drivers/mmc/core/queue.h @@ -35,9 +35,11 @@ struct mmc_blk_request { /** * enum mmc_drv_op - enumerates the operations in the mmc_queue_req * @MMC_DRV_OP_IOCTL: ioctl operation + * @MMC_DRV_OP_BOOT_WP: write protect boot partitions */ enum mmc_drv_op { MMC_DRV_OP_IOCTL, + MMC_DRV_OP_BOOT_WP, }; struct mmc_queue_req { @@ -48,7 +50,7 @@ struct mmc_queue_req { unsigned int bounce_sg_len; struct mmc_async_req areq; enum mmc_drv_op drv_op; - int ioc_result; + int drv_op_result; struct mmc_blk_ioc_data **idata; unsigned int ioc_count; }; |