KFunc bpf_mem_cgroup_usage
Read memory cGroup's usage.
Definition
Note
The root memory cGroup it special and is exempt from the memory accounting. The returned value is a sum of sub-cGroup's usages and it not reflecting the size of the root memory cGroup itself. If you need to get an approximation, you can use root level statistics: e.g. NR_FILE_PAGES + NR_ANON_MAPPED.
Parameters
memcg: memory cGroup
Returns
The current memory cGroup size in bytes.
Signature
long unsigned int bpf_mem_cgroup_usage(struct mem_cgroup *memcg)
Usage
Docs could be improved
This part of the docs is incomplete, contributions are very welcome
Program types
The following program types can make use of this kfunc:
BPF_PROG_TYPE_CGROUP_DEVICEv6.12 -BPF_PROG_TYPE_CGROUP_SKBBPF_PROG_TYPE_CGROUP_SOCKv6.12 -BPF_PROG_TYPE_CGROUP_SOCKOPTv6.12 -BPF_PROG_TYPE_CGROUP_SOCK_ADDRv6.7 -BPF_PROG_TYPE_CGROUP_SYSCTLv6.12 -BPF_PROG_TYPE_LSMBPF_PROG_TYPE_LWT_INBPF_PROG_TYPE_LWT_OUTBPF_PROG_TYPE_LWT_SEG6LOCALBPF_PROG_TYPE_LWT_XMITBPF_PROG_TYPE_NETFILTERBPF_PROG_TYPE_PERF_EVENTv6.12 -BPF_PROG_TYPE_SCHED_ACTBPF_PROG_TYPE_SCHED_CLSBPF_PROG_TYPE_SK_SKBBPF_PROG_TYPE_SOCKET_FILTERBPF_PROG_TYPE_SOCK_OPSv6.15 -BPF_PROG_TYPE_STRUCT_OPSBPF_PROG_TYPE_SYSCALLBPF_PROG_TYPE_TRACEPOINTv6.12 -BPF_PROG_TYPE_TRACINGBPF_PROG_TYPE_XDP
Example
Docs could be improved
This part of the docs is incomplete, contributions are very welcome