allow dockerd builds without cgo #39327
Merged
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These patches allow building usable dockerd without the need of cgo. No changes to the current default way how we produce binaries.
Changes are in three areas:
Quota - uses cgo extensively but is an optional feature with feature detection already in caller. Add a new build tag that can be used to build without it.
Copy - cgo used for the ioctl based fast copy that has been replaced with the syscall. Change is to skip this check on !cgo . The copy_file_range and fallback methods still provide the feature. As it is only used for constant I could also just hardcode it in !cgo version if we want to keep it.
Stats: uses sysconf. Replaced with
unix.SchedGetaffinity