kernel/linux.git/samples/bpf/task_fd_query_kern.c, branch v5.4.222Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v5.4.2222019-02-27T16:27:22+00:00samples: bpf: fix: broken sample regarding removed function2019-02-27T16:27:22+00:00Daniel T. Leedanieltimlee@gmail.com2019-02-27T07:52:26+00:00urn:sha1:d2e614cb0795d935aee879e47aab231247274f13
Currently, running sample "task_fd_query" and "tracex3" occurs the
following error. On kernel v5.0-rc* this sample will be unavailable
due to the removal of function 'blk_start_request' at commit "a1ce35f".
(function removed, as "Single Queue IO scheduler" no longer exists)
$ sudo ./task_fd_query
failed to create kprobe 'blk_start_request' error 'No such file or
directory'
This commit will change the function 'blk_start_request' to
'blk_mq_start_request' to fix the broken sample.
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
samples/bpf: add a samples/bpf test for BPF_TASK_FD_QUERY2018-05-25T01:18:20+00:00Yonghong Songyhs@fb.com2018-05-24T18:21:56+00:00urn:sha1:ecb96f7fe153c7ff2fd31db64c52a53b7e6401ab
This is mostly to test kprobe/uprobe which needs kernel headers.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>