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Song Liu 44bd0d19c5 bpf: use bpf_prog_pack for bpf_dispatcher 
[ Upstream commit 19c02415da ]

Allocate bpf_dispatcher with bpf_prog_pack_alloc so that bpf_dispatcher
can share pages with bpf programs.

arch_prepare_bpf_dispatcher() is updated to provide a RW buffer as working
area for arch code to write to.

This also fixes CPA W^X warnning like:

CPA refuse W^X violation: 8000000000000163 -> 0000000000000163 range: ...

Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20220926184739.3512547-2-song@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24 09:58:15 +02:00
arch bpf: use bpf_prog_pack for bpf_dispatcher 2022-10-24 09:58:15 +02:00
block blk-wbt: call rq_qos_add() after wb_normal is initialized 2022-10-24 09:56:59 +02:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-28 11:32:27 +02:00
crypto crypto: akcipher - default implementation for setting a private key 2022-10-24 09:58:05 +02:00
Documentation x86/apic: Don't disable x2APIC if locked 2022-10-24 09:58:12 +02:00
drivers hwmon: (sht4x) do not overflow clamping operation on 32-bit platforms 2022-10-24 09:58:15 +02:00
fs NFSD: fix use-after-free on source server when doing inter-server copy 2022-10-24 09:58:10 +02:00
include bpf: use bpf_prog_pack for bpf_dispatcher 2022-10-24 09:58:15 +02:00
init arm64: fix rodata=full 2022-08-31 17:18:19 +02:00
io_uring io_uring: correct pinned_vm accounting 2022-10-24 09:56:40 +02:00
ipc ipc: mqueue: fix possible memory leak in init_mqueue_fs() 2022-10-24 09:58:02 +02:00
kernel bpf: use bpf_prog_pack for bpf_dispatcher 2022-10-24 09:58:15 +02:00
lib dyndbg: drop EXPORTed dynamic_debug_exec_queries 2022-10-24 09:57:52 +02:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm mm/mmap: undo ->mmap() when arch_validate_flags() fails 2022-10-24 09:56:48 +02:00
net net: If sock is dead don't access sock's sk_wq in sk_stream_wait_memory 2022-10-24 09:58:15 +02:00
samples sample: bpf: xdp_router_ipv4: Allow the kernel to send arp requests 2022-08-17 15:14:25 +02:00
scripts kbuild: rpm-pkg: fix breakage when V=1 is used 2022-10-24 09:58:07 +02:00
security ima: fix blocking of security.ima xattrs of unsupported algorithms 2022-10-24 09:57:01 +02:00
sound ALSA: hda/hdmi: Don't skip notification handling during PM operation 2022-10-24 09:57:23 +02:00
tools bpf: Adjust kprobe_multi entry_ip for CONFIG_X86_KERNEL_IBT 2022-10-24 09:58:15 +02:00
usr Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
virt KVM: Unconditionally get a ref to /dev/kvm module when creating a VM 2022-08-25 11:45:05 +02:00
.clang-format clang-format: Fix space after for_each macros 2022-05-20 19:27:16 +02:00
.cocciconfig
.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 ARM: SoC fixes for 5.19, part 4 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 io_uring: move to separate directory 2022-08-17 15:14:20 +02:00
Makefile Linux 5.19.16 2022-10-15 08:01:46 +02:00
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.