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Stefano Garzarella 4a44a5eda2 vdpa_sim_blk: add support for discard and write-zeroes 
Expose VIRTIO_BLK_F_DISCARD and VIRTIO_BLK_F_WRITE_ZEROES features
to the drivers and handle VIRTIO_BLK_T_DISCARD and
VIRTIO_BLK_T_WRITE_ZEROES requests checking ranges and flags.

The simulator behaves like a ramdisk, so for VIRTIO_BLK_F_DISCARD
does nothing, while for VIRTIO_BLK_T_WRITE_ZEROES sets to 0 the
specified region.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20220811083632.77525-5-sgarzare@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-08-11 04:44:58 -04:00
arch
virtio: find_vqs() add arg sizes
2022-08-11 04:06:40 -04:00
block
block: fix missing blkcg_bio_issue_init
2022-07-14 10:54:49 -06:00
certs
certs: make system keyring depend on x509 parser
2022-07-24 12:53:55 -07:00
crypto
crypto: s390 - do not depend on CRYPTO_HW for SIMD implementations
2022-07-06 20:04:06 -07:00
Documentation
dt-bindings: virtio: mmio: add optional wakeup-source property
2022-08-11 04:06:38 -04:00
drivers
vdpa_sim_blk: add support for discard and write-zeroes
2022-08-11 04:44:58 -04:00
fs
Merge tag 'mm-hotfixes-stable-2022-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-07-26 19:38:46 -07:00
include
vhost-vdpa: uAPI to suspend the device
2022-08-11 04:31:15 -04:00
init
gcc-12: disable '-Warray-bounds' universally for now
2022-06-09 10:11:12 -07:00
ipc
ipc: Free mq_sysctls if ipc namespace creation failed
2022-06-22 17:47:41 -05:00
kernel
Merge tag 'x86_urgent_for_v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2022-07-31 09:26:53 -07:00
lib
ubsan: disable UBSAN_DIV_ZERO for clang
2022-07-14 15:45:26 -07:00
LICENSES
LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers
2021-12-16 14:33:10 +01:00
mm
Merge tag 'mm-hotfixes-stable-2022-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-07-29 21:02:35 -07:00
net
net: ping6: Fix memleak in ipv6_renew_options().
2022-07-28 10:42:08 -07:00
samples
Merge tag 'trace-v5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2022-07-12 16:17:40 -07:00
scripts
scripts/gdb: Fix gdb 'lx-symbols' command
2022-07-21 10:40:55 -07:00
security
lockdown: Fix kexec lockdown bypass with ima policy
2022-07-20 09:56:48 -07:00
sound
Merge tag 'asoc-fix-v5.19-rc4-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
2022-07-15 12:31:07 +02:00
tools
tools/virtio: fix build
2022-08-11 04:26:07 -04:00
usr
Merge tag 'mm-nonmm-stable-2022-05-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-05-27 11:22:03 -07:00
virt
KVM: x86: disable preemption around the call to kvm_arch_vcpu_{un|}blocking
2022-06-09 10:52:20 -04:00
.clang-format
clang-format: Fix space after for_each macros
2022-05-20 19:27:16 +02:00
.cocciconfig
scripts: add Linux .cocciconfig for coccinelle
2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
kbuild: split the second line of *.mod into *.usyms
2022-05-08 03:16:59 +09:00
.mailmap
Merge tag 'soc-fixes-5.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2022-07-27 09:43:07 -07:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: mark ARM/PALM TREO SUPPORT orphan
2022-07-07 15:17:00 +02:00
Kbuild
kbuild: rename hostprogs-y/always to hostprogs/always-y
2020-02-04 01:53:07 +09:00
Kconfig
kbuild: ensure full rebuild when the compiler is updated
2020-05-12 13:28:33 +09:00
MAINTAINERS
Merge tag 'pinctrl-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
2022-07-22 12:24:04 -07:00
Makefile
Linux 5.19
2022-07-31 14:03:01 -07:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
Description
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