support Fallocate on linux

1 files changed, 6 insertions, 5 deletions

diff --git a/weed/command/compact.go b/weed/command/compact.go
index db11880ec..ae54db115 100644
--- a/weed/command/compact.go
+++ b/weed/command/compact.go
@@ -20,10 +20,11 @@ var cmdCompact = &Command{
 }
 
 var (
-	compactVolumePath       = cmdCompact.Flag.String("dir", ".", "data directory to store files")
-	compactVolumeCollection = cmdCompact.Flag.String("collection", "", "volume collection name")
-	compactVolumeId         = cmdCompact.Flag.Int("volumeId", -1, "a volume id. The volume should already exist in the dir.")
-	compactMethod           = cmdCompact.Flag.Int("method", 0, "option to choose which compact method. use 0 or 1.")
+	compactVolumePath        = cmdCompact.Flag.String("dir", ".", "data directory to store files")
+	compactVolumeCollection  = cmdCompact.Flag.String("collection", "", "volume collection name")
+	compactVolumeId          = cmdCompact.Flag.Int("volumeId", -1, "a volume id. The volume should already exist in the dir.")
+	compactMethod            = cmdCompact.Flag.Int("method", 0, "option to choose which compact method. use 0 or 1.")
+	compactVolumePreallocate = cmdCompact.Flag.Int64("preallocate", 0, "preallocate volume disk space")
 )
 
 func runCompact(cmd *Command, args []string) bool {
@@ -34,7 +35,7 @@ func runCompact(cmd *Command, args []string) bool {
 
 	vid := storage.VolumeId(*compactVolumeId)
 	v, err := storage.NewVolume(*compactVolumePath, *compactVolumeCollection, vid,
-		storage.NeedleMapInMemory, nil, nil)
+		storage.NeedleMapInMemory, nil, nil, *compactVolumePreallocate)
 	if err != nil {
 		glog.Fatalf("Load Volume [ERROR] %s\n", err)
 	}