diff options
author | Luke Shumaker <lukeshu@lukeshu.com> | 2022-12-20 20:06:15 -0700 |
---|---|---|
committer | Luke Shumaker <lukeshu@lukeshu.com> | 2022-12-20 20:06:15 -0700 |
commit | 8ff81c1ed6a50179166ffc4cfb60bef85394265e (patch) | |
tree | f2395593d4d4cfd12b26ba2030bb94930fe4ba56 /lib/btrfsprogs/btrfsinspect/rebuildnodes/util.go | |
parent | 7315c38414b3a6840d71f254b7c8192640b41d7c (diff) | |
parent | 94a86a763157327ac969c98e19d7770db477a6a3 (diff) |
Merge branch 'lukeshu/rebuild-nodes-take2'
Diffstat (limited to 'lib/btrfsprogs/btrfsinspect/rebuildnodes/util.go')
-rw-r--r-- | lib/btrfsprogs/btrfsinspect/rebuildnodes/util.go | 42 |
1 files changed, 9 insertions, 33 deletions
diff --git a/lib/btrfsprogs/btrfsinspect/rebuildnodes/util.go b/lib/btrfsprogs/btrfsinspect/rebuildnodes/util.go index 7e0eab1..8c43dad 100644 --- a/lib/btrfsprogs/btrfsinspect/rebuildnodes/util.go +++ b/lib/btrfsprogs/btrfsinspect/rebuildnodes/util.go @@ -5,43 +5,11 @@ package rebuildnodes import ( - "fmt" + "golang.org/x/exp/constraints" "git.lukeshu.com/btrfs-progs-ng/lib/btrfsprogs/btrfsinspect" ) -func ptrTo[T any](x T) *T { - return &x -} - -func maybeSet[K, V comparable](name string, m map[K]V, k K, v V) error { - if other, conflict := m[k]; conflict && other != v { - return fmt.Errorf("conflict: %s %v can't have both %v and %v", name, k, other, v) - } - m[k] = v - return nil -} - -/* -var maxKey = btrfsprim.Key{ - ObjectID: math.MaxUint64, - ItemType: math.MaxUint8, - Offset: math.MaxUint64, -} - -func keyMm(key btrfsprim.Key) btrfsprim.Key { - switch { - case key.Offset > 0: - key.Offset-- - case key.ItemType > 0: - key.ItemType-- - case key.ObjectID > 0: - key.ObjectID-- - } - return key -} -*/ - func countNodes(nodeScanResults btrfsinspect.ScanDevicesResult) int { var cnt int for _, devResults := range nodeScanResults { @@ -49,3 +17,11 @@ func countNodes(nodeScanResults btrfsinspect.ScanDevicesResult) int { } return cnt } + +func roundDown[T constraints.Integer](n, d T) T { + return (n / d) * d +} + +func roundUp[T constraints.Integer](n, d T) T { + return ((n + d - 1) / d) * d +} |