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| author | Martynas Pumputis <m@lambda.lt> | 2019-01-31 10:19:33 +0100 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-01-31 23:13:22 +0100 |
| commit | 1bb54c4071f585ebef56ce8fdfe6026fa2cbcddd (patch) | |
| tree | 7250dc1999a2829c27b5e721446c49cad6b759f3 /kernel/seccomp.c | |
| parent | 9d90436ece8f2c5b4da617e679590137e54ce4cb (diff) | |
| download | linux-1bb54c4071f585ebef56ce8fdfe6026fa2cbcddd.tar.bz2 | |
bpf, selftests: fix handling of sparse CPU allocations
Previously, bpf_num_possible_cpus() had a bug when calculating a
number of possible CPUs in the case of sparse CPU allocations, as
it was considering only the first range or element of
/sys/devices/system/cpu/possible.
E.g. in the case of "0,2-3" (CPU 1 is not available), the function
returned 1 instead of 3.
This patch fixes the function by making it parse all CPU ranges and
elements.
Signed-off-by: Martynas Pumputis <m@lambda.lt>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'kernel/seccomp.c')
0 files changed, 0 insertions, 0 deletions