Prior to this patch, DiskUsage() would calculate bytes available
by multiplying blocks available by block size in bytes:
disk.Avail = fs.Bavail * uint64(fs.Bsize)
Under some versions of Unix, fs.Bavail is of type uint64 and on
others (like FreeBSD) it is of type int64.
This causes a compile time error:
$ go build
# github.com/influxdata/influxdb/v2/pkg/fs
./fs_unix.go:81:25: invalid operation: fs.Bavail * uint64(fs.Bsize) (mismatched types int64 and uint64)
This patch type-converts fs.Bavail to unit64 to ensure that all
types in the expression align.
This prevents compile time errors under FreeBSD and other platforms
where fs.Bavail isn't uint64.
Ayan George
vlastahajek
Jonathan A. Sternberg
Max U
Edd Robinson