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author | 2025-02-03 10:12:35 +0000 | |
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committer | 2025-02-03 10:12:35 +0000 | |
commit | c086d4048c2a26a0bf70c1ced24c78680a786710 (patch) | |
tree | cf7606e8452e9047d7f0e0d9b6de10edf7ebdc89 /vendor/github.com/cilium/ebpf/link/cgroup.go | |
parent | [chore]: Bump golang.org/x/oauth2 from 0.24.0 to 0.25.0 (#3725) (diff) | |
download | gotosocial-c086d4048c2a26a0bf70c1ced24c78680a786710.tar.xz |
[chore]: Bump github.com/KimMachineGun/automemlimit from 0.6.1 to 0.7.0 (#3726)
Bumps [github.com/KimMachineGun/automemlimit](https://github.com/KimMachineGun/automemlimit) from 0.6.1 to 0.7.0.
- [Release notes](https://github.com/KimMachineGun/automemlimit/releases)
- [Commits](https://github.com/KimMachineGun/automemlimit/compare/v0.6.1...v0.7.0)
---
updated-dependencies:
- dependency-name: github.com/KimMachineGun/automemlimit
dependency-type: direct:production
update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Diffstat (limited to 'vendor/github.com/cilium/ebpf/link/cgroup.go')
-rw-r--r-- | vendor/github.com/cilium/ebpf/link/cgroup.go | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/vendor/github.com/cilium/ebpf/link/cgroup.go b/vendor/github.com/cilium/ebpf/link/cgroup.go deleted file mode 100644 index 003b0638e..000000000 --- a/vendor/github.com/cilium/ebpf/link/cgroup.go +++ /dev/null @@ -1,165 +0,0 @@ -package link - -import ( - "errors" - "fmt" - "os" - - "github.com/cilium/ebpf" -) - -type cgroupAttachFlags uint32 - -// cgroup attach flags -const ( - flagAllowOverride cgroupAttachFlags = 1 << iota - flagAllowMulti - flagReplace -) - -type CgroupOptions struct { - // Path to a cgroupv2 folder. - Path string - // One of the AttachCgroup* constants - Attach ebpf.AttachType - // Program must be of type CGroup*, and the attach type must match Attach. - Program *ebpf.Program -} - -// AttachCgroup links a BPF program to a cgroup. -func AttachCgroup(opts CgroupOptions) (Link, error) { - cgroup, err := os.Open(opts.Path) - if err != nil { - return nil, fmt.Errorf("can't open cgroup: %s", err) - } - - clone, err := opts.Program.Clone() - if err != nil { - cgroup.Close() - return nil, err - } - - var cg Link - cg, err = newLinkCgroup(cgroup, opts.Attach, clone) - if errors.Is(err, ErrNotSupported) { - cg, err = newProgAttachCgroup(cgroup, opts.Attach, clone, flagAllowMulti) - } - if errors.Is(err, ErrNotSupported) { - cg, err = newProgAttachCgroup(cgroup, opts.Attach, clone, flagAllowOverride) - } - if err != nil { - cgroup.Close() - clone.Close() - return nil, err - } - - return cg, nil -} - -type progAttachCgroup struct { - cgroup *os.File - current *ebpf.Program - attachType ebpf.AttachType - flags cgroupAttachFlags -} - -var _ Link = (*progAttachCgroup)(nil) - -func (cg *progAttachCgroup) isLink() {} - -func newProgAttachCgroup(cgroup *os.File, attach ebpf.AttachType, prog *ebpf.Program, flags cgroupAttachFlags) (*progAttachCgroup, error) { - if flags&flagAllowMulti > 0 { - if err := haveProgAttachReplace(); err != nil { - return nil, fmt.Errorf("can't support multiple programs: %w", err) - } - } - - err := RawAttachProgram(RawAttachProgramOptions{ - Target: int(cgroup.Fd()), - Program: prog, - Flags: uint32(flags), - Attach: attach, - }) - if err != nil { - return nil, fmt.Errorf("cgroup: %w", err) - } - - return &progAttachCgroup{cgroup, prog, attach, flags}, nil -} - -func (cg *progAttachCgroup) Close() error { - defer cg.cgroup.Close() - defer cg.current.Close() - - err := RawDetachProgram(RawDetachProgramOptions{ - Target: int(cg.cgroup.Fd()), - Program: cg.current, - Attach: cg.attachType, - }) - if err != nil { - return fmt.Errorf("close cgroup: %s", err) - } - return nil -} - -func (cg *progAttachCgroup) Update(prog *ebpf.Program) error { - new, err := prog.Clone() - if err != nil { - return err - } - - args := RawAttachProgramOptions{ - Target: int(cg.cgroup.Fd()), - Program: prog, - Attach: cg.attachType, - Flags: uint32(cg.flags), - } - - if cg.flags&flagAllowMulti > 0 { - // Atomically replacing multiple programs requires at least - // 5.5 (commit 7dd68b3279f17921 "bpf: Support replacing cgroup-bpf - // program in MULTI mode") - args.Flags |= uint32(flagReplace) - args.Replace = cg.current - } - - if err := RawAttachProgram(args); err != nil { - new.Close() - return fmt.Errorf("can't update cgroup: %s", err) - } - - cg.current.Close() - cg.current = new - return nil -} - -func (cg *progAttachCgroup) Pin(string) error { - return fmt.Errorf("can't pin cgroup: %w", ErrNotSupported) -} - -func (cg *progAttachCgroup) Unpin() error { - return fmt.Errorf("can't pin cgroup: %w", ErrNotSupported) -} - -func (cg *progAttachCgroup) Info() (*Info, error) { - return nil, fmt.Errorf("can't get cgroup info: %w", ErrNotSupported) -} - -type linkCgroup struct { - RawLink -} - -var _ Link = (*linkCgroup)(nil) - -func newLinkCgroup(cgroup *os.File, attach ebpf.AttachType, prog *ebpf.Program) (*linkCgroup, error) { - link, err := AttachRawLink(RawLinkOptions{ - Target: int(cgroup.Fd()), - Program: prog, - Attach: attach, - }) - if err != nil { - return nil, err - } - - return &linkCgroup{*link}, err -} |