Jan Höppner 28b841b3a7 s390/dasd: Add discard support for FBA devices ... The z/VM hypervisor provides virtual disks (VDISK) which are backed by main memory of the hypervisor. Those devices are seen as DASD FBA disks within the Linux guest. Whenever data is written to such a device, memory is allocated on-the-fly by z/VM accordingly. This memory, however, is not being freed if data on the device is deleted by the guest OS. In order to make memory usable after deletion again, add discard support to the FBA discipline. While at it, update comments regarding the DASD_FEATURE_* flags. Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2017-08-29 16:31:26 +02:00
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block	s390/dasd: Add discard support for FBA devices	2017-08-29 16:31:26 +02:00
char	s390/vmcp: simplify vmcp_response_free()	2017-08-29 16:29:02 +02:00
cio	s390/cio: add const to bin_attribute structures	2017-08-03 13:16:30 +02:00
crypto	s390/zcrypt: make CPRBX const	2017-08-29 16:31:25 +02:00
net	s390/qeth: constify attribute_group structures.	2017-07-26 08:25:19 +02:00
scsi	SCSI misc on 20170220	2017-02-21 11:51:42 -08:00
virtio	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux	2017-05-16 09:24:44 -07:00
Makefile	virtio/s390: rename drivers/s390/kvm -> drivers/s390/virtio	2015-07-07 14:27:06 +03:00