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Tao Chen 97ebac5886 bpf: Add show_fdinfo for perf_event 
After commit 1b715e1b0e ("bpf: Support ->fill_link_info for perf_event") add
perf_event info, we can also show the info with the method of cat /proc/[fd]/fdinfo.

kprobe fdinfo:
link_type:	perf
link_id:	10
prog_tag:	bcf7977d3b93787c
prog_id:	20
name:	bpf_fentry_test1
offset:	0x0
missed:	0
addr:	0xffffffffa28a2904
event_type:	kprobe
cookie:	3735928559

uprobe fdinfo:
link_type:	perf
link_id:	13
prog_tag:	bcf7977d3b93787c
prog_id:	21
name:	/proc/self/exe
offset:	0x63dce4
ref_ctr_offset:	0x33eee2a
event_type:	uprobe
cookie:	3735928559

tracepoint fdinfo:
link_type:	perf
link_id:	11
prog_tag:	bcf7977d3b93787c
prog_id:	22
tp_name:	sched_switch
event_type:	tracepoint
cookie:	3735928559

perf_event fdinfo:
link_type:	perf
link_id:	12
prog_tag:	bcf7977d3b93787c
prog_id:	23
type:	1
config:	2
event_type:	event
cookie:	3735928559

Signed-off-by: Tao Chen <chen.dylane@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250606150258.3385166-1-chen.dylane@linux.dev
History 2025-06-09 16:40:13 -07:00
arch dmaengine updates for v6.16 2025-06-05 08:49:30 -07:00
block - dm: better error handling when reloading a table 2025-06-03 15:54:46 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto EFI updates for v6.16 2025-05-30 12:42:57 -07:00
Documentation Documentation: Fix spelling mistake. 2025-06-06 19:22:36 -07:00
drivers RTC for 6.16 2025-06-05 08:54:47 -07:00
fs four smb3 server fixes 2025-06-04 19:23:37 -07:00
include bpf: Implement mprog API on top of existing cgroup progs 2025-06-09 16:28:28 -07:00
init Rust changes for v6.16 2025-06-04 21:18:37 -07:00
io_uring Networking changes for 6.16. 2025-05-28 15:24:36 -07:00
ipc - The 3 patch series "hung_task: extend blocking task stacktrace dump to 2025-05-31 19:12:53 -07:00
kernel bpf: Add show_fdinfo for perf_event 2025-06-09 16:40:13 -07:00
lib bitmap-for-6.16 2025-06-03 07:39:23 -07:00
LICENSES LICENSES: add CC0-1.0 license text 2025-05-21 14:54:17 +02:00
mm slab updates for 6.16 2025-06-04 08:59:59 -07:00
net NFS Clent Updates for Linux 6.16 2025-06-03 16:13:32 -07:00
rust Rust changes for v6.16 2025-06-04 21:18:37 -07:00
samples - The 3 patch series "hung_task: extend blocking task stacktrace dump to 2025-05-31 19:12:53 -07:00
scripts Rust changes for v6.16 2025-06-04 21:18:37 -07:00
security require gcc-8 and binutils-2.30 2025-05-31 08:16:52 -07:00
sound soundwire updates for 6.16 2025-06-05 08:07:24 -07:00
tools selftests/bpf: Add two selftests for mprog API based cgroup progs 2025-06-09 16:28:31 -07:00
usr usr/include: openrisc: don't HDRTEST bpf_perf_event.h 2025-05-12 15:03:17 +09:00
virt Merge branch 'kvm-lockdep-common' into HEAD 2025-05-28 06:29:17 -04:00
.clang-format Linux 6.15-rc5 2025-05-06 16:39:25 +10:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore .gitignore: ignore Python compiled bytecode 2025-04-24 10:12:46 -06:00
.mailmap Rust changes for v6.16 2025-06-04 21:18:37 -07:00
.pylintrc docs: add a .pylintrc file with sys path for docs scripts 2025-04-09 12:10:33 -06:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS Update Christoph's Email address and make it consistent 2025-05-12 23:50:31 -07:00
Kbuild drm: ensure drm headers are self-contained and pass kernel-doc 2025-02-12 10:44:43 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS dmaengine updates for v6.16 2025-06-05 08:49:30 -07:00
Makefile A moderately busy cycle for documentation this time around: 2025-05-27 11:22:19 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -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 reStructuredText 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.