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authorKui-Feng Lee <kuifeng@fb.com>2022-09-26 21:49:53 +0300
committerAndrii Nakryiko <andrii@kernel.org>2022-09-29 02:29:47 +0300
commitf0d74c4da1f060d2a66976193712a5e6abd361f5 (patch)
tree968e615de60ff19f172e71fc17d96131d48548cc /tools/include
parent87dbdc230d162bf9ee1ac77c8ade178b6b1e199e (diff)
downloadlinux-f0d74c4da1f060d2a66976193712a5e6abd361f5.tar.xz
bpf: Parameterize task iterators.
Allow creating an iterator that loops through resources of one thread/process. People could only create iterators to loop through all resources of files, vma, and tasks in the system, even though they were interested in only the resources of a specific task or process. Passing the additional parameters, people can now create an iterator to go through all resources or only the resources of a task. Signed-off-by: Kui-Feng Lee <kuifeng@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/bpf/20220926184957.208194-2-kuifeng@fb.com
Diffstat (limited to 'tools/include')
-rw-r--r--tools/include/uapi/linux/bpf.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index d6bd10759eaf..455b21a53aac 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -110,6 +110,12 @@ union bpf_iter_link_info {
__u32 cgroup_fd;
__u64 cgroup_id;
} cgroup;
+ /* Parameters of task iterators. */
+ struct {
+ __u32 tid;
+ __u32 pid;
+ __u32 pid_fd;
+ } task;
};
/* BPF syscall commands, see bpf(2) man-page for more details. */