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Daniel T. Lee d89af13c92 samples: bpf: Refactor test_cgrp2_sock2 program with libbpf 
This commit refactors the existing cgroup program with libbpf bpf
loader. The original test_cgrp2_sock2 has keeped the bpf program
attached to the cgroup hierarchy even after the exit of user program.
To implement the same functionality with libbpf, this commit uses the
BPF_LINK_PINNING to pin the link attachment even after it is closed.

Since this uses LINK instead of ATTACH, detach of bpf program from
cgroup with 'test_cgrp2_sock' is not used anymore.

The code to mount the bpf was added to the .sh file in case the bpff
was not mounted on /sys/fs/bpf. Additionally, to fix the problem that
shell script cannot find the binary object from the current path,
relative path './' has been added in front of binary.

Fixes: 554ae6e792 ("samples/bpf: add userspace example for prohibiting sockets")
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201124090310.24374-3-danieltimlee@gmail.com
2020-11-26 19:33:35 -08:00
arch
block
certs
crypto
Documentation
drivers i40e: Use batched xsk Tx interfaces to increase performance 2020-11-17 22:07:40 +01:00
fs
include bpf: Add a BPF helper for getting the IMA hash of an inode 2020-11-26 00:04:04 +01:00
init
ipc
kernel bpf: Add a BPF helper for getting the IMA hash of an inode 2020-11-26 00:04:04 +01:00
lib
LICENSES
mm
net xsk: Introduce batched Tx descriptor interfaces 2020-11-17 22:07:40 +01:00
samples samples: bpf: Refactor test_cgrp2_sock2 program with libbpf 2020-11-26 19:33:35 -08:00
scripts bpf: Add a BPF helper for getting the IMA hash of an inode 2020-11-26 00:04:04 +01:00
security ima: Implement ima_inode_hash 2020-11-26 00:04:04 +01:00
sound
tools bpf: Fix selftest compilation on clang 11 2020-11-26 00:25:55 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile
README

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.