Not that it matters, but fclose() doesn't happen in the kernel, so the kernel devs can't do anything about it. All libcs have essentially the same implementatio

Not that it matters, but fclose() doesn't happen in the kernel, so the kernel devs can't do anything about it. All libcs have essentially the same implementation: - is fp NULL or already already closed? return error - call fflush() and return error if it fails (fflush also happens in userland, it does a seek() then a write() of the userland buffer) - call close() and return error if it fails close() follows essentially the same process inside the kernel: check fd is valid, call flush() (this time truly to disk), close it.