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964ce509e2
linux/drivers/s390/block
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Stefan Haberland 964ce509e2 Revert "s390/dasd: Add discard support for ESE volumes" 
This reverts commit 7e64db1597.

The thin provisioning feature introduces an IOCTL and the discard support
to allow userspace tools and filesystems to release unused and previously
allocated space respectively.

During some internal performance improvements and further tests, the
release of allocated space revealed some issues that may lead to data
corruption in some configurations when filesystems are mounted with
discard support enabled.

While we're working on a fix and trying to clarify the situation,
this commit reverts the discard support for ESE volumes to prevent
potential data corruption.

Cc: <stable@vger.kernel.org> # 5.3
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-10-01 09:53:36 -06:00
..
dasd_3990_erp.c
dasd_alias.c s390/dasd: fix endless loop after read unit address configuration 2019-08-01 20:46:14 -06:00
dasd_devmap.c s390/dasd: Recognise data for ESE volumes 2019-07-11 20:39:53 +02:00
dasd_diag.c s390/dasd: Make dasd_setup_queue() a discipline function 2019-07-11 20:39:54 +02:00
dasd_diag.h
dasd_eckd.c Revert "s390/dasd: Add discard support for ESE volumes" 2019-10-01 09:53:36 -06:00
dasd_eckd.h s390/dasd: Handle out-of-space constraint 2019-07-11 20:39:54 +02:00
dasd_eer.c s390/dasd: Handle out-of-space constraint 2019-07-11 20:39:54 +02:00
dasd_erp.c
dasd_fba.c s390/dasd: Use ALIGN_DOWN macro 2019-07-11 20:39:54 +02:00
dasd_fba.h s390/dasd: Make dasd_setup_queue() a discipline function 2019-07-11 20:39:54 +02:00
dasd_genhd.c block: genhd: add 'groups' argument to device_add_disk 2018-09-28 08:30:28 -06:00
dasd_int.h s390/dasd: Handle out-of-space constraint 2019-07-11 20:39:54 +02:00
dasd_ioctl.c s390/dasd: Add new ioctl to release space 2019-07-11 20:39:54 +02:00
dasd_proc.c s390/drivers: fix proc/debugfs file permissions 2018-12-13 10:42:24 +01:00
dasd.c s390/dasd: Handle out-of-space constraint 2019-07-11 20:39:54 +02:00
dcssblk.c libnvdimm: add dax_dev sync flag 2019-07-05 15:19:10 -07:00
Kconfig s390/Kconfig: pedantic cleanups 2019-06-04 15:03:46 +02:00
Makefile
scm_blk.c block: genhd: add 'groups' argument to device_add_disk 2018-09-28 08:30:28 -06:00
scm_blk.h
scm_drv.c
xpram.c