Andrey Ignatov f5bfcd953d bpf: Document BPF_F_QUERY_EFFECTIVE flag ... Document BPF_F_QUERY_EFFECTIVE flag, mostly to clarify how it affects attach_flags what may not be obvious and what may lead to confision. Specifically attach_flags is returned only for target_fd but if programs are inherited from an ancestor cgroup then returned attach_flags for current cgroup may be confusing. For example, two effective programs of same attach_type can be returned but w/o BPF_F_ALLOW_MULTI in attach_flags. Simple repro: # bpftool c s /sys/fs/cgroup/path/to/task ID AttachType AttachFlags Name # bpftool c s /sys/fs/cgroup/path/to/task effective ID AttachType AttachFlags Name 95043 ingress tw_ipt_ingress 95048 ingress tw_ingress Signed-off-by: Andrey Ignatov <rdna@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20200108014006.938363-1-rdna@fb.com		2020-01-09 09:40:06 -08:00
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asm-generic	arch: sembuf.h: make uapi asm/sembuf.h self-contained	2019-12-04 19:44:14 -08:00
drm	drm/vmwgfx: Add surface dirty-tracking callbacks	2019-11-06 15:45:32 +01:00
linux	bpf: Document BPF_F_QUERY_EFFECTIVE flag	2020-01-09 09:40:06 -08:00
misc	habanalabs: expose reset counters via existing INFO IOCTL	2019-11-21 11:35:47 +02:00
mtd
rdma	RDMA/efa: Expose RDMA read related attributes	2019-11-25 10:31:48 -04:00
scsi
sound	ALSA: compress: add flac decoder params	2019-11-18 13:02:25 +00:00
video
xen
Kbuild