generate inode via path and time

weed/mount/inode_to_path.go

@@ -4,7 +4,6 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/util"
 	"github.com/hanwen/go-fuse/v2/fuse"
-	"os"
 	"sync"
 )
 
@@ -31,13 +30,13 @@ func NewInodeToPath(root util.FullPath) *InodeToPath {
 	return t
 }
 
-func (i *InodeToPath) Lookup(path util.FullPath, mode os.FileMode, isHardlink bool, possibleInode uint64, isLookup bool) uint64 {
+func (i *InodeToPath) Lookup(path util.FullPath, unixTime int64, isDirectory bool, isHardlink bool, possibleInode uint64, isLookup bool) uint64 {
 	i.Lock()
 	defer i.Unlock()
 	inode, found := i.path2inode[path]
 	if !found {
 		if possibleInode == 0 {
-			inode = path.AsInode(mode)
+			inode = path.AsInode(unixTime)
 		} else {
 			inode = possibleInode
 		}
@@ -55,22 +54,22 @@ func (i *InodeToPath) Lookup(path util.FullPath, mode os.FileMode, isHardlink bo
 		}
 	} else {
 		if !isLookup {
-			i.inode2path[inode] = &InodeEntry{path, 0, mode&os.ModeDir > 0, false}
+			i.inode2path[inode] = &InodeEntry{path, 0, isDirectory, false}
 		} else {
-			i.inode2path[inode] = &InodeEntry{path, 1, mode&os.ModeDir > 0, false}
+			i.inode2path[inode] = &InodeEntry{path, 1, isDirectory, false}
 		}
 	}
 
 	return inode
 }
 
-func (i *InodeToPath) AllocateInode(path util.FullPath, mode os.FileMode) uint64 {
+func (i *InodeToPath) AllocateInode(path util.FullPath, unixTime int64) uint64 {
 	if path == "/" {
 		return 1
 	}
 	i.Lock()
 	defer i.Unlock()
-	inode := path.AsInode(mode)
+	inode := path.AsInode(unixTime)
 	for _, found := i.inode2path[inode]; found; inode++ {
 		_, found = i.inode2path[inode]
 	}

weed/mount/weedfs_dir_lookup.go

@@ -53,7 +53,7 @@ func (wfs *WFS) Lookup(cancel <-chan struct{}, header *fuse.InHeader, name strin
 		return fuse.ENOENT
 	}
 
-	inode := wfs.inodeToPath.Lookup(fullFilePath, localEntry.Mode, len(localEntry.HardLinkId) > 0, localEntry.Inode, true)
+	inode := wfs.inodeToPath.Lookup(fullFilePath, localEntry.Crtime.Unix(), localEntry.IsDirectory(), len(localEntry.HardLinkId) > 0, localEntry.Inode, true)
 
 	if fh, found := wfs.fhmap.FindFileHandle(inode); found && fh.entry != nil {
 		glog.V(4).Infof("lookup opened file %s size %d", dirPath.Child(localEntry.Name()), filer.FileSize(fh.entry))

weed/mount/weedfs_dir_mkrm.go

@@ -78,7 +78,7 @@ func (wfs *WFS) Mkdir(cancel <-chan struct{}, in *fuse.MkdirIn, name string, out
 		return fuse.EIO
 	}
 
-	inode := wfs.inodeToPath.Lookup(entryFullPath, os.ModeDir, false, 0, true)
+	inode := wfs.inodeToPath.Lookup(entryFullPath, newEntry.Attributes.Crtime, true, false, 0, true)
 
 	wfs.outputPbEntry(out, inode, newEntry)
 

weed/mount/weedfs_dir_read.go

@@ -162,14 +162,14 @@ func (wfs *WFS) doReadDirectory(input *fuse.ReadIn, out *fuse.DirEntryList, isPl
 		dirEntry.Name = entry.Name()
 		dirEntry.Mode = toSyscallMode(entry.Mode)
 		if !isPlusMode {
-			inode := wfs.inodeToPath.Lookup(dirPath.Child(dirEntry.Name), entry.Mode, len(entry.HardLinkId) > 0, entry.Inode, false)
+			inode := wfs.inodeToPath.Lookup(dirPath.Child(dirEntry.Name), entry.Crtime.Unix(), entry.IsDirectory(), len(entry.HardLinkId) > 0, entry.Inode, false)
 			dirEntry.Ino = inode
 			if !out.AddDirEntry(dirEntry) {
 				isEarlyTerminated = true
 				return false
 			}
 		} else {
-			inode := wfs.inodeToPath.Lookup(dirPath.Child(dirEntry.Name), entry.Mode, len(entry.HardLinkId) > 0, entry.Inode, true)
+			inode := wfs.inodeToPath.Lookup(dirPath.Child(dirEntry.Name), entry.Crtime.Unix(), entry.IsDirectory(), len(entry.HardLinkId) > 0, entry.Inode, true)
 			dirEntry.Ino = inode
 			entryOut := out.AddDirLookupEntry(dirEntry)
 			if entryOut == nil {

weed/mount/weedfs_file_mkrm.go

@@ -51,14 +51,15 @@ func (wfs *WFS) Mknod(cancel <-chan struct{}, in *fuse.MknodIn, name string, out
 
 	entryFullPath := dirFullPath.Child(name)
 	fileMode := toOsFileMode(in.Mode)
-	inode := wfs.inodeToPath.AllocateInode(entryFullPath, fileMode)
+	now := time.Now().Unix()
+	inode := wfs.inodeToPath.AllocateInode(entryFullPath, now)
 
 	newEntry := &filer_pb.Entry{
 		Name:        name,
 		IsDirectory: false,
 		Attributes: &filer_pb.FuseAttributes{
-			Mtime:       time.Now().Unix(),
-			Crtime:      time.Now().Unix(),
+			Mtime:       now,
+			Crtime:      now,
 			FileMode:    uint32(fileMode),
 			Uid:         in.Uid,
 			Gid:         in.Gid,
@@ -101,7 +102,7 @@ func (wfs *WFS) Mknod(cancel <-chan struct{}, in *fuse.MknodIn, name string, out
 	}
 
 	// this is to increase nlookup counter
-	inode = wfs.inodeToPath.Lookup(entryFullPath, fileMode, false, inode, true)
+	inode = wfs.inodeToPath.Lookup(entryFullPath, newEntry.Attributes.Crtime, false, false, inode, true)
 
 	wfs.outputPbEntry(out, inode, newEntry)
 

weed/mount/weedfs_link.go

@@ -102,7 +102,7 @@ func (wfs *WFS) Link(cancel <-chan struct{}, in *fuse.LinkIn, name string, out *
 		return fuse.EIO
 	}
 
-	inode := wfs.inodeToPath.Lookup(newEntryPath, oldEntry.FileMode(), true, oldEntry.Attributes.Inode, true)
+	inode := wfs.inodeToPath.Lookup(newEntryPath, oldEntry.Attributes.Crtime, oldEntry.IsDirectory, true, oldEntry.Attributes.Inode, true)
 
 	wfs.outputPbEntry(out, inode, request.Entry)
 

weed/mount/weedfs_symlink.go

@@ -63,7 +63,7 @@ func (wfs *WFS) Symlink(cancel <-chan struct{}, header *fuse.InHeader, target st
 		return fuse.EIO
 	}
 
-	inode := wfs.inodeToPath.Lookup(entryFullPath, os.ModeSymlink, false, 0, true)
+	inode := wfs.inodeToPath.Lookup(entryFullPath, request.Entry.Attributes.Crtime, false, false, 0, true)
 
 	wfs.outputPbEntry(out, inode, request.Entry)
 

weed/util/fullpath.go

@@ -1,7 +1,6 @@
 package util
 
 import (
-	"os"
 	"path/filepath"
 	"strings"
 )
@@ -43,29 +42,9 @@ func (fp FullPath) Child(name string) FullPath {
 }
 
 // AsInode an in-memory only inode representation
-func (fp FullPath) AsInode(fileMode os.FileMode) uint64 {
+func (fp FullPath) AsInode(unixTime int64) uint64 {
 	inode := uint64(HashStringToLong(string(fp)))
-	inode = inode - inode%16
-	if fileMode == 0 {
-	} else if fileMode&os.ModeDir > 0 {
-		inode += 1
-	} else if fileMode&os.ModeSymlink > 0 {
-		inode += 2
-	} else if fileMode&os.ModeDevice > 0 {
-		if fileMode&os.ModeCharDevice > 0 {
-			inode += 6
-		} else {
-			inode += 3
-		}
-	} else if fileMode&os.ModeNamedPipe > 0 {
-		inode += 4
-	} else if fileMode&os.ModeSocket > 0 {
-		inode += 5
-	} else if fileMode&os.ModeCharDevice > 0 {
-		inode += 6
-	} else if fileMode&os.ModeIrregular > 0 {
-		inode += 7
-	}
+	inode = inode + uint64(unixTime)*37
 	return inode
 }