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adjust hardlink update

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simplify logic, pass entity content directly to hard link. The "weed mount" handles the logic to calculate hard link counter.
This commit is contained in:
Chris Lu
2020-09-24 09:43:00 -07:00
parent 5e239afdfc
commit 1295347958
3 changed files with 119 additions and 223 deletions
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46
weed/filesys/dir_link.go
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@@ -32,31 +32,28 @@ func (dir *Dir) Link(ctx context.Context, req *fuse.LinkRequest, old fs.Node) (f
}
// update old file to hardlink mode
var updateOldEntryRequest *filer_pb.UpdateEntryRequest
var hardLinkId filer.HardLinkId
if oldFile.entry.HardLinkId != 0 {
hardLinkId = filer.HardLinkId(oldFile.entry.HardLinkId)
} else {
// CreateLink 1.1 : split source entry into hardlink+empty_entry
hardLinkId = filer.HardLinkId(util.RandomInt64())
updateOldEntryRequest = &filer_pb.UpdateEntryRequest{
Directory: oldFile.dir.FullPath(),
Entry: &filer_pb.Entry{
Name: oldFile.entry.Name,
IsDirectory: oldFile.entry.IsDirectory,
HardLinkId: int64(hardLinkId),
},
Signatures: []int32{dir.wfs.signature},
}
if oldFile.entry.HardLinkId == 0 {
oldFile.entry.HardLinkId = util.RandomInt64()
oldFile.entry.HardLinkCounter = 1
}
oldFile.entry.HardLinkCounter++
updateOldEntryRequest := &filer_pb.UpdateEntryRequest{
Directory: oldFile.dir.FullPath(),
Entry: oldFile.entry,
Signatures: []int32{dir.wfs.signature},
}
// CreateLink 1.2 : update new file to hardlink mode
request := &filer_pb.CreateEntryRequest{
Directory: dir.FullPath(),
Entry: &filer_pb.Entry{
Name: req.NewName,
IsDirectory: false,
HardLinkId: int64(hardLinkId),
Name: req.NewName,
IsDirectory: false,
Attributes: oldFile.entry.Attributes,
Chunks: oldFile.entry.Chunks,
Extended: oldFile.entry.Extended,
HardLinkId: oldFile.entry.HardLinkId,
HardLinkCounter: oldFile.entry.HardLinkCounter,
},
Signatures: []int32{dir.wfs.signature},
}
@@ -67,14 +64,11 @@ func (dir *Dir) Link(ctx context.Context, req *fuse.LinkRequest, old fs.Node) (f
dir.wfs.mapPbIdFromLocalToFiler(request.Entry)
defer dir.wfs.mapPbIdFromFilerToLocal(request.Entry)
if updateOldEntryRequest != nil {
if err := filer_pb.UpdateEntry(client, updateOldEntryRequest); err != nil {
glog.V(0).Infof("Link %v/%v -> %s/%s: %v", oldFile.dir.FullPath(), oldFile.Name, dir.FullPath(), req.NewName, err)
return fuse.EIO
}
dir.wfs.metaCache.UpdateEntry(context.Background(), filer.FromPbEntry(updateOldEntryRequest.Directory, updateOldEntryRequest.Entry))
oldFile.entry.HardLinkId = int64(hardLinkId)
if err := filer_pb.UpdateEntry(client, updateOldEntryRequest); err != nil {
glog.V(0).Infof("Link %v/%v -> %s/%s: %v", oldFile.dir.FullPath(), oldFile.Name, dir.FullPath(), req.NewName, err)
return fuse.EIO
}
dir.wfs.metaCache.UpdateEntry(context.Background(), filer.FromPbEntry(updateOldEntryRequest.Directory, updateOldEntryRequest.Entry))
if err := filer_pb.CreateEntry(client, request); err != nil {
glog.V(0).Infof("Link %v/%v -> %s/%s: %v", oldFile.dir.FullPath(), oldFile.Name, dir.FullPath(), req.NewName, err)