From: Andrii Nakryiko <andriin@fb.com>
To: <bpf@vger.kernel.org>, <netdev@vger.kernel.org>, <ast@fb.com>,
<daniel@iogearbox.net>
Cc: andrii.nakryiko@gmail.com, kernel-team@fb.com,
"Andrii Nakryiko" <andriin@fb.com>,
"Toke Høiland-Jørgensen" <toke@redhat.com>
Subject: [PATCH bpf-next 5/5] tools/bpftool: add documentation and bash-completion for `link detach`
Date: Wed, 29 Jul 2020 16:05:20 -0700 [thread overview]
Message-ID: <20200729230520.693207-6-andriin@fb.com> (raw)
In-Reply-To: <20200729230520.693207-1-andriin@fb.com>
Add info on link detach sub-command to man page. Add detach to bash-completion
as well.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
---
tools/bpf/bpftool/Documentation/bpftool-link.rst | 8 ++++++++
tools/bpf/bpftool/bash-completion/bpftool | 4 ++--
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/tools/bpf/bpftool/Documentation/bpftool-link.rst b/tools/bpf/bpftool/Documentation/bpftool-link.rst
index 38b0949a185b..4a52e7a93339 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-link.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-link.rst
@@ -21,6 +21,7 @@ LINK COMMANDS
| **bpftool** **link { show | list }** [*LINK*]
| **bpftool** **link pin** *LINK* *FILE*
+| **bpftool** **link detach *LINK*
| **bpftool** **link help**
|
| *LINK* := { **id** *LINK_ID* | **pinned** *FILE* }
@@ -49,6 +50,13 @@ DESCRIPTION
contain a dot character ('.'), which is reserved for future
extensions of *bpffs*.
+ **bpftool link detach** *LINK*
+ Force-detach link *LINK*. BPF link and its underlying BPF
+ program will stay valid, but they will be detached from the
+ respective BPF hook and BPF link will transition into
+ a defunct state until last open file descriptor for that
+ link is closed.
+
**bpftool link help**
Print short help message.
diff --git a/tools/bpf/bpftool/bash-completion/bpftool b/tools/bpf/bpftool/bash-completion/bpftool
index 257fa310ea2b..f53ed2f1a4aa 100644
--- a/tools/bpf/bpftool/bash-completion/bpftool
+++ b/tools/bpf/bpftool/bash-completion/bpftool
@@ -1122,7 +1122,7 @@ _bpftool()
;;
link)
case $command in
- show|list|pin)
+ show|list|pin|detach)
case $prev in
id)
_bpftool_get_link_ids
@@ -1139,7 +1139,7 @@ _bpftool()
COMPREPLY=( $( compgen -W "$LINK_TYPE" -- "$cur" ) )
return 0
;;
- pin)
+ pin|detach)
if [[ $prev == "$command" ]]; then
COMPREPLY=( $( compgen -W "$LINK_TYPE" -- "$cur" ) )
else
--
2.24.1
next prev parent reply other threads:[~2020-07-29 23:05 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-29 23:05 [PATCH bpf-next 0/5] BPF link force-detach support Andrii Nakryiko
2020-07-29 23:05 ` [PATCH bpf-next 1/5] bpf: add support for forced LINK_DETACH command Andrii Nakryiko
2020-07-30 17:43 ` Song Liu
2020-07-30 19:03 ` Andrii Nakryiko
2020-07-30 20:53 ` Song Liu
2020-07-29 23:05 ` [PATCH bpf-next 2/5] libbpf: add bpf_link detach APIs Andrii Nakryiko
2020-07-30 17:51 ` Song Liu
2020-07-29 23:05 ` [PATCH bpf-next 3/5] selftests/bpf: add link detach tests for cgroup, netns, and xdp bpf_links Andrii Nakryiko
2020-07-30 20:56 ` Song Liu
2020-07-29 23:05 ` [PATCH bpf-next 4/5] tools/bpftool: add `link detach` subcommand Andrii Nakryiko
2020-07-30 21:02 ` Song Liu
2020-07-30 21:14 ` Andrii Nakryiko
2020-07-29 23:05 ` Andrii Nakryiko [this message]
2020-07-30 21:13 ` [PATCH bpf-next 5/5] tools/bpftool: add documentation and bash-completion for `link detach` Song Liu
2020-07-30 21:16 ` Andrii Nakryiko
2020-07-30 21:50 ` Song Liu
2020-08-10 15:01 ` [PATCH bpf-next 0/5] BPF link force-detach support Toke Høiland-Jørgensen
2020-08-10 18:43 ` Andrii Nakryiko
2020-08-10 19:03 ` Toke Høiland-Jørgensen
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