kernel/linux.git/samples/bpf/task_fd_query_kern.c, branch v6.12.80

samples/bpf: Replace blk_account_io_done() with __blk_account_io_done()

2022-09-21T00:25:59+00:00

Since commit be6bfe36db17 ("block: inline hot paths of blk_account_io_*()") blk_account_io_*() become inline functions. Signed-off-by: Rong Tao Signed-off-by: Andrii Nakryiko Acked-by: Yonghong Song Link: https://lore.kernel.org/bpf/tencent_1CC476835C219FACD84B6715F0D785517E07@qq.com

samples: bpf: Fix broken bpf programs due to removed symbol

2020-08-19T00:10:03+00:00

>From commit f1394b798814 ("block: mark blk_account_io_completion static") symbol blk_account_io_completion() has been marked as static, which makes it no longer possible to attach kprobe to this event. Currently, there are broken samples due to this reason. As a solution to this, attach kprobe events to blk_account_io_done() to modify them to perform the same behavior as before. Signed-off-by: Daniel T. Lee Signed-off-by: Alexei Starovoitov Acked-by: Yonghong Song Link: https://lore.kernel.org/bpf/20200818051641.21724-1-danieltimlee@gmail.com

samples/bpf: Use consistent include paths for libbpf

2020-01-21T00:37:45+00:00

Fix all files in samples/bpf to include libbpf header files with the bpf/ prefix, to be consistent with external users of the library. Also ensure that all includes of exported libbpf header files (those that are exported on 'make install' of the library) use bracketed includes instead of quoted. To make sure no new files are introduced that doesn't include the bpf/ prefix in its include, remove tools/lib/bpf from the include path entirely, and use tools/lib instead. Fixes: 6910d7d3867a ("selftests/bpf: Ensure bpf_helper_defs.h are taken from selftests dir") Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: Alexei Starovoitov Acked-by: Jesper Dangaard Brouer Acked-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/157952560911.1683545.8795966751309534150.stgit@toke.dk

samples: bpf: fix: broken sample regarding removed function

2019-02-27T16:27:22+00:00

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 Signed-off-by: Daniel Borkmann

samples/bpf: add a samples/bpf test for BPF_TASK_FD_QUERY

2018-05-25T01:18:20+00:00

This is mostly to test kprobe/uprobe which needs kernel headers. Signed-off-by: Yonghong Song Signed-off-by: Alexei Starovoitov