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65f9e20e0d
linux/drivers/mmc/core
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Shawn Lin 65f9e20e0d mmc: block: Don't switch to the same partition type in mmc_blk_remove() 
It's pointless to switch and trace partition type if the current
selected device partition is the same with that one. Moreover, cycled
claiming host associated with mmc_blk_part_switch() could make
mmc_blk_remove() end up waiting for grabbing the context if it's
occupied, which lead requests could still hit the low-level drivers,
if an asynchronous unbind for host drivers happened, as the card hasn't
been set removed in the remove path.

So a simple dd in background:
dd if=/dev/mmcblk0 of=/dev/null bs=512k count=100000 &

and doing unbind then:
echo fe320000.dwmmc > /sys/bus/platform/drivers/dwmmc_rockchip/unbind

could make the console stuck for quite a while depending on the
numbers of requests.

Suggested-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21 15:49:18 +02:00
..
block.c mmc: block: Don't switch to the same partition type in mmc_blk_remove() 2018-05-21 15:49:18 +02:00
block.h mmc: block: Remove code no longer needed after the switch to blk-mq 2017-12-11 13:02:22 +01:00
bus.c mmc: core: Remove code no longer needed after the switch to blk-mq 2017-12-11 13:05:58 +01:00
bus.h mmc: core: Move public functions from card.h to private headers 2017-02-13 13:20:24 +01:00
card.h mmc: core: Add a new quirk for limiting clock rate 2018-05-02 15:08:39 +02:00
core.c mmc: core: add tunable delay waiting for power to be stable 2018-05-21 10:38:50 +02:00
core.h mmc: core: Share internal function to set initial signal voltage 2018-05-08 09:33:50 +02:00
debugfs.c mmc: Export host capabilities to debugfs. 2018-03-22 10:36:27 +01:00
host.c mmc: core: add tunable delay waiting for power to be stable 2018-05-21 10:38:50 +02:00
host.h mmc: core: Don't try UHS-I mode if 4-bit mode isn't supported 2018-03-15 09:30:39 +01:00
Kconfig mmc: core: Delete bounce buffer Kconfig option 2017-06-20 10:30:17 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmc_ops.c mmc: core: Avoid hanging to claim host for mmc via some nested calls 2018-02-27 15:12:37 +01:00
mmc_ops.h mmc: core: Re-factor code for sending CID 2017-06-20 10:30:45 +02:00
mmc_test.c mmc: mmc_test: Ensure command queue is disabled for testing 2017-12-11 12:51:29 +01:00
mmc.c mmc: core: Rename ->reset() bus ops to ->hw_reset() 2018-05-08 09:33:29 +02:00
pwrseq_emmc.c mmc: core: Don't do eMMC HW reset when resuming the eMMC card 2017-06-20 10:30:10 +02:00
pwrseq_sd8787.c mmc: pwrseq: add support for Marvell SD8787 chip 2017-02-13 13:20:33 +01:00
pwrseq_simple.c mmc: pwrseq: Use kmalloc_array instead of stack VLA 2018-05-02 15:08:29 +02:00
pwrseq.c mmc: pwrseq: Add reset callback to the struct mmc_pwrseq_ops 2017-06-20 10:30:09 +02:00
pwrseq.h mmc: pwrseq: Add reset callback to the struct mmc_pwrseq_ops 2017-06-20 10:30:09 +02:00
queue.c block: Use blk_queue_flag_*() in drivers instead of queue_flag_*() 2018-03-08 14:13:48 -07:00
queue.h mmc: block: Remove code no longer needed after the switch to blk-mq 2017-12-11 13:02:22 +01:00
quirks.h mmc: core: sdio: Set SDIO clock of SDR104 to 150MHz for Marvell 8887 chip 2018-05-02 15:08:39 +02:00
sd_ops.c mmc: core: add proper be32 annotation 2017-04-24 21:42:19 +02:00
sd_ops.h mmc: core: add proper be32 annotation 2017-04-24 21:42:19 +02:00
sd.c mmc: core: Rename ->reset() bus ops to ->hw_reset() 2018-05-08 09:33:29 +02:00
sd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sdio_bus.c mmc: sdio: fix alignment issue in struct sdio_func 2017-04-18 19:18:07 +02:00
sdio_bus.h mmc: core: First step in cleaning up private mmc header files 2017-02-13 13:20:20 +01:00
sdio_cis.c mmc: core: remove BUG_ONs from sdio 2016-12-05 10:31:08 +01:00
sdio_cis.h mmc: core: First step in cleaning up private mmc header files 2017-02-13 13:20:20 +01:00
sdio_io.c mmc: core: simplify return code 2017-04-24 21:41:24 +02:00
sdio_irq.c mmc: update sdio_claim_irq documentation 2018-03-22 10:50:24 +01:00
sdio_ops.c mmc: sdio: improve mmc_io_rw_extended 2017-04-24 21:41:42 +02:00
sdio_ops.h mmc: sdio: Add API to manage SDIO IRQs from a workqueue 2017-06-20 10:30:11 +02:00
sdio_uart.c mmc: block: Move files to core 2016-12-12 16:30:05 +01:00
sdio.c mmc: core: Implement ->sw_reset bus ops for SDIO 2018-05-08 09:33:56 +02:00
slot-gpio.c mmc: core: Add tunable delay before detecting card after card is inserted 2018-05-03 10:33:52 +02:00
slot-gpio.h mmc: core: First step in cleaning up private mmc header files 2017-02-13 13:20:20 +01:00