Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\filter.h Create Date:2022-07-28 06:07:47
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:bpf_prog_run_clear_cb

Proto:static inline u32 bpf_prog_run_clear_cb(const struct bpf_prog *prog, struct sk_buff *skb)

Type:u32

Parameter:

TypeParameterName
const struct bpf_prog *prog
struct sk_buff *skb
690  cb_data = bpf_skb_cb(skb)
693  If Value for the false possibility is greater at compile time( Is control block accessed? ) Then memset(cb_data, 0, BPF_SKB_CB_LEN)
696  Even if we don't have any preemption, we need preempt disable/enable* to be barriers, so that we don't have things like get_user/put_user* that can cause faults and scheduling migrate into our preempt-protected* region.()
697  res = BPF_PROG_RUN(prog, skb)
698  preempt_enable()
699  Return res