cgroup_id_map: change example for CGRP_STORAGE to not use GET_F_CREATE#570
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dqminh wants to merge 1 commit into
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cgroup_id_map: change example for CGRP_STORAGE to not use GET_F_CREATE#570dqminh wants to merge 1 commit into
dqminh wants to merge 1 commit into
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BPF_LOCAL_STORAGE_GET_F_CREATE will create a zero entry if it does not find our cgroup in the CGRP_STORAGE. THis is unnecessary work as the entry should only be written by ebpf_exporter for cgroups that we are interested in, so we should not set the flag.
netoptimizer
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netoptimizer
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Further down you are using the value stored in *ok to select which map to update.
Thus, the BPF_LOCAL_STORAGE_GET_F_CREATE is correctly used here.
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Have you seen: netoptimizer#1 (comment)
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BPF_LOCAL_STORAGE_GET_F_CREATE will create a zero entry if it does not find our cgroup in the CGRP_STORAGE. THis is unnecessary work as the entry should only be written by ebpf_exporter for cgroups that we are interested in, so we should not set the flag.