Skip parent directory creation in mount (#4310)

A POSIX filesystem does not implicitly create parent directories when
they do not exist. Directories must be explicitly created and
permissions be set.

This also fixes a bug where asynchronous operations would create a
file in the filer before the parent directory was created. If the
file was a symlink or another special type of file the directory
would inherit that type and become unusable in the mounted FS.
This commit is contained in:
Patrick Schmidt 2023-03-15 20:37:25 +01:00 committed by GitHub
parent f5854d13df
commit 71b33faef0
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
3 changed files with 24 additions and 15 deletions

View file

@ -3,14 +3,16 @@ package mount
import (
"context"
"fmt"
"github.com/hanwen/go-fuse/v2/fuse"
"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"os"
"strings"
"syscall"
"time"
"github.com/hanwen/go-fuse/v2/fuse"
"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
)
/** Create a directory
@ -57,6 +59,7 @@ func (wfs *WFS) Mkdir(cancel <-chan struct{}, in *fuse.MkdirIn, name string, out
Directory: string(dirFullPath),
Entry: newEntry,
Signatures: []int32{wfs.signature},
SkipCheckParentDirectory: true,
}
glog.V(1).Infof("mkdir: %v", request)

View file

@ -2,12 +2,14 @@ package mount
import (
"context"
"syscall"
"time"
"github.com/hanwen/go-fuse/v2/fuse"
"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"syscall"
"time"
)
/*
@ -73,6 +75,7 @@ func (wfs *WFS) Link(cancel <-chan struct{}, in *fuse.LinkIn, name string, out *
HardLinkCounter: oldEntry.HardLinkCounter,
},
Signatures: []int32{wfs.signature},
SkipCheckParentDirectory: true,
}
// apply changes to the filer, and also apply to local metaCache

View file

@ -3,13 +3,15 @@ package mount
import (
"context"
"fmt"
"github.com/hanwen/go-fuse/v2/fuse"
"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"os"
"syscall"
"time"
"github.com/hanwen/go-fuse/v2/fuse"
"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
)
/** Create a symbolic link */
@ -43,6 +45,7 @@ func (wfs *WFS) Symlink(cancel <-chan struct{}, header *fuse.InHeader, target st
},
},
Signatures: []int32{wfs.signature},
SkipCheckParentDirectory: true,
}
err := wfs.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {