Commit 3ef4641f authored by Gary Lin's avatar Gary Lin Committed by Alexei Starovoitov
Browse files

docs/btf: fix the missing section marks 



The section titles of 3.4 and 3.5 are not marked correctly.

Signed-off-by: default avatarGary Lin <glin@suse.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 69e168eb

Documentation/bpf/btf.rst

+2 −0
Original line number Diff line number Diff line
@@ -578,6 +578,7 @@ For line_info, the line number and column number are defined as below: 
    #define BPF_LINE_INFO_LINE_COL(line_col)        ((line_col) & 0x3ff)



3.4 BPF_{PROG,MAP}_GET_NEXT_ID

==============================



In kernel, every loaded program, map or btf has a unique id. The id won't

change during the lifetime of a program, map, or btf.
@@ -587,6 +588,7 @@ each command, to user space, for bpf program or maps, respectively, so an 
inspection tool can inspect all programs and maps.



3.5 BPF_{PROG,MAP}_GET_FD_BY_ID

===============================



An introspection tool cannot use id to get details about program or maps.

A file descriptor needs to be obtained first for reference-counting purpose.

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