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pkg/kernelversion: simplify code with sync.OnceValues

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Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn
2026-07-01 10:34:24 +02:00
parent 5e3e05aec7
commit c45f911980
1 changed files with 8 additions and 17 deletions
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25
pkg/kernelversion/kernel_linux.go
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@@ -42,24 +42,15 @@ func (k *KernelVersion) String() string {
return ""
}
var (
currentKernelVersion *KernelVersion
kernelVersionError error
once sync.Once
)
// getKernelVersion gets the current kernel version.
func getKernelVersion() (*KernelVersion, error) {
once.Do(func() {
var uts unix.Utsname
if err := unix.Uname(&uts); err != nil {
return
}
// Convert the NUL-terminated release field before parsing.
currentKernelVersion, kernelVersionError = parseRelease(unix.ByteSliceToString(uts.Release[:]))
})
return currentKernelVersion, kernelVersionError
}
var getKernelVersion = sync.OnceValues(func() (*KernelVersion, error) {
var uts unix.Utsname
if err := unix.Uname(&uts); err != nil {
return nil, err
}
// Convert the NUL-terminated release field before parsing.
return parseRelease(unix.ByteSliceToString(uts.Release[:]))
})
// parseRelease parses a string and creates a KernelVersion based on it.
func parseRelease(release string) (*KernelVersion, error) {