forked from mirrors/linux
fd1740b6ab
Remove the dependency from cgroup-defs.h to bpf-cgroup.h and bpf.h. This reduces the incremental build size of x86 allmodconfig after bpf.h was touched from ~17k objects rebuilt to ~5k objects. bpf.h is 2.2kLoC and is modified relatively often. We need a new header with just the definition of struct cgroup_bpf and enum cgroup_bpf_attach_type, this is akin to cgroup-defs.h. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/bpf/20211216025538.1649516-4-kuba@kernel.org
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BPF_CGROUP_DEFS_H
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#define _BPF_CGROUP_DEFS_H
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#ifdef CONFIG_CGROUP_BPF
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#include <linux/list.h>
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#include <linux/percpu-refcount.h>
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#include <linux/workqueue.h>
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struct bpf_prog_array;
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enum cgroup_bpf_attach_type {
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CGROUP_BPF_ATTACH_TYPE_INVALID = -1,
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CGROUP_INET_INGRESS = 0,
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CGROUP_INET_EGRESS,
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CGROUP_INET_SOCK_CREATE,
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CGROUP_SOCK_OPS,
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CGROUP_DEVICE,
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CGROUP_INET4_BIND,
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CGROUP_INET6_BIND,
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CGROUP_INET4_CONNECT,
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CGROUP_INET6_CONNECT,
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CGROUP_INET4_POST_BIND,
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CGROUP_INET6_POST_BIND,
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CGROUP_UDP4_SENDMSG,
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CGROUP_UDP6_SENDMSG,
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CGROUP_SYSCTL,
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CGROUP_UDP4_RECVMSG,
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CGROUP_UDP6_RECVMSG,
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CGROUP_GETSOCKOPT,
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CGROUP_SETSOCKOPT,
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CGROUP_INET4_GETPEERNAME,
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CGROUP_INET6_GETPEERNAME,
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CGROUP_INET4_GETSOCKNAME,
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CGROUP_INET6_GETSOCKNAME,
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CGROUP_INET_SOCK_RELEASE,
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MAX_CGROUP_BPF_ATTACH_TYPE
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};
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struct cgroup_bpf {
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/* array of effective progs in this cgroup */
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struct bpf_prog_array __rcu *effective[MAX_CGROUP_BPF_ATTACH_TYPE];
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/* attached progs to this cgroup and attach flags
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* when flags == 0 or BPF_F_ALLOW_OVERRIDE the progs list will
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* have either zero or one element
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* when BPF_F_ALLOW_MULTI the list can have up to BPF_CGROUP_MAX_PROGS
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*/
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struct list_head progs[MAX_CGROUP_BPF_ATTACH_TYPE];
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u32 flags[MAX_CGROUP_BPF_ATTACH_TYPE];
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/* list of cgroup shared storages */
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struct list_head storages;
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/* temp storage for effective prog array used by prog_attach/detach */
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struct bpf_prog_array *inactive;
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/* reference counter used to detach bpf programs after cgroup removal */
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struct percpu_ref refcnt;
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/* cgroup_bpf is released using a work queue */
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struct work_struct release_work;
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};
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#else /* CONFIG_CGROUP_BPF */
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struct cgroup_bpf {};
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#endif /* CONFIG_CGROUP_BPF */
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#endif
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