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ensure inodes are not duplicating unless hardlinked

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This commit is contained in:
chrislu 2022-02-27 23:13:49 -08:00
parent de77d00c81
commit 63a9d8f01d
6 changed files with 27 additions and 10 deletions
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21
weed/mount/inode_to_path.go
View file

@ -31,18 +31,20 @@ func NewInodeToPath() *InodeToPath {
return t
}
func (i *InodeToPath) Lookup(path util.FullPath, mode os.FileMode, isCreate bool, possibleInode uint64, isLookup bool) uint64 {
func (i *InodeToPath) Lookup(path util.FullPath, mode os.FileMode, 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)
} else {
inode = possibleInode
}
if !isHardlink {
for _, found := i.inode2path[inode]; found; inode++ {
_, found = i.inode2path[inode]
}
} else {
inode = possibleInode
}
}
i.path2inode[path] = inode
@ -62,6 +64,19 @@ func (i *InodeToPath) Lookup(path util.FullPath, mode os.FileMode, isCreate bool
return inode
}
func (i *InodeToPath) AllocateInode(path util.FullPath, mode os.FileMode) uint64 {
if path == "/" {
return 1
}
i.Lock()
defer i.Unlock()
inode := path.AsInode(mode)
for _, found := i.inode2path[inode]; found; inode++ {
_, found = i.inode2path[inode]
}
return inode
}
func (i *InodeToPath) GetInode(path util.FullPath) uint64 {
if path == "/" {
return 1

2
weed/mount/weedfs_dir_lookup.go
View file

@ -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, false, localEntry.Inode, true)
inode := wfs.inodeToPath.Lookup(fullFilePath, localEntry.Mode, len(localEntry.HardLinkId) > 0, localEntry.Inode, true)
if fh, found := wfs.fhmap.FindFileHandle(inode); found {
glog.V(4).Infof("lookup opened file %s size %d", dirPath.Child(localEntry.Name()), filer.FileSize(fh.entry))

2
weed/mount/weedfs_dir_mkrm.go
View file

@ -74,7 +74,7 @@ func (wfs *WFS) Mkdir(cancel <-chan struct{}, in *fuse.MkdirIn, name string, out
return fuse.EIO
}
inode := wfs.inodeToPath.Lookup(entryFullPath, os.ModeDir, true, 0, true)
inode := wfs.inodeToPath.Lookup(entryFullPath, os.ModeDir, false, 0, true)
wfs.outputPbEntry(out, inode, newEntry)

4
weed/mount/weedfs_dir_read.go
View file

@ -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, false, entry.Inode, false)
inode := wfs.inodeToPath.Lookup(dirPath.Child(dirEntry.Name), entry.Mode, 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, false, entry.Inode, true)
inode := wfs.inodeToPath.Lookup(dirPath.Child(dirEntry.Name), entry.Mode, len(entry.HardLinkId) > 0, entry.Inode, true)
dirEntry.Ino = inode
entryOut := out.AddDirLookupEntry(dirEntry)
if entryOut == nil {

6
weed/mount/weedfs_file_mkrm.go
View file

@ -46,6 +46,7 @@ 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)
newEntry := &filer_pb.Entry{
Name: name,
@ -60,7 +61,7 @@ func (wfs *WFS) Mknod(cancel <-chan struct{}, in *fuse.MknodIn, name string, out
Replication: wfs.option.Replication,
TtlSec: wfs.option.TtlSec,
Rdev: in.Rdev,
Inode: entryFullPath.AsInode(fileMode),
Inode: inode,
},
}
@ -94,7 +95,8 @@ func (wfs *WFS) Mknod(cancel <-chan struct{}, in *fuse.MknodIn, name string, out
return fuse.EIO
}
inode := wfs.inodeToPath.Lookup(entryFullPath, newEntry.FileMode(), true, 0, true)
// this is to increase nlookup counter
inode = wfs.inodeToPath.Lookup(entryFullPath, fileMode, false, inode, true)
wfs.outputPbEntry(out, inode, newEntry)

2
weed/mount/weedfs_link.go
View file

@ -97,7 +97,7 @@ func (wfs *WFS) Link(cancel <-chan struct{}, in *fuse.LinkIn, name string, out *
return fuse.EIO
}
inode := wfs.inodeToPath.Lookup(newEntryPath, oldEntry.FileMode(), false, oldEntry.Attributes.Inode, true)
inode := wfs.inodeToPath.Lookup(newEntryPath, oldEntry.FileMode(), true, oldEntry.Attributes.Inode, true)
wfs.outputPbEntry(out, inode, request.Entry)