Anton Ivanov 50109b5a03 um: Add support for DISCARD in the UBD Driver ...

Support for DISCARD and WRITE_ZEROES in the ubd driver using
fallocate.

DISCARD is enabled by default and can be disabled using a new
UBD command line flag.

If the underlying fs on which the UBD image is stored does not
support DISCARD the support for both DISCARD and WRITE_ZEROES
is turned off.

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

2018-12-27 22:48:20 +01:00

..

drivers

um: return negative in tuntap_open_tramp()

2017-09-13 22:36:50 +02:00

skas

um: Give start_idle_thread() a return code

2018-10-29 22:23:11 +01:00

elf_aux.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

execvp.c

um: Use os_warn to print out pre-boot warning/error messages

2017-07-05 23:18:25 +02:00

file.c

um: Add support for DISCARD in the UBD Driver

2018-12-27 22:48:20 +01:00

helper.c

um: Fix waitpid() usage in helper code

2015-10-19 22:53:37 +02:00

irq.c

Epoll based IRQ controller

2018-02-19 19:38:51 +01:00

main.c

um: remove uml initcalls

2018-06-10 22:49:14 +02:00

Makefile

um: remove unused AIO code

2018-10-29 22:23:12 +01:00

mem.c

um: Use os_warn to print out pre-boot warning/error messages

2017-07-05 23:18:25 +02:00

process.c

um: Switch clocksource to hrtimers

2015-11-06 22:54:49 +01:00

registers.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

sigio.c

um: Cleanup SIGTERM handling

2013-09-07 10:56:58 +02:00

signal.c

um: Compile with modern headers

2018-03-29 22:15:12 +02:00

start_up.c

Fix minor typos and grammar in UML start_up help

2017-09-13 22:33:23 +02:00

time.c

um: Switch clocksource to hrtimers

2015-11-06 22:54:49 +01:00

tty.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

umid.c

um: Use os_warn to print out pre-boot warning/error messages

2017-07-05 23:18:25 +02:00

user_syms.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

util.c

um: Add os_warn() for pre-boot warning/error messages

2017-07-05 23:18:02 +02:00