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authorRahat Mahmood <rahat@google.com>2020-08-28 14:29:16 -0700
committerAndrei Vagin <avagin@gmail.com>2020-09-09 17:53:10 -0700
commit8d75fc4883ca8c10fb615203993d56d33a9e36b6 (patch)
tree47f5daf4cca625193e58799c2701e0f69e02f02d /pkg/sentry/fsimpl/sockfs
parent91e81aaf69ac5fc4cd7b677139c6a23801eabb02 (diff)
Implement StatFS for various VFS2 filesystems.
This mainly involved enabling kernfs' client filesystems to provide a StatFS implementation. Fixes #3411, #3515. PiperOrigin-RevId: 329009864
Diffstat (limited to 'pkg/sentry/fsimpl/sockfs')
-rw-r--r--pkg/sentry/fsimpl/sockfs/sockfs.go9
1 files changed, 7 insertions, 2 deletions
diff --git a/pkg/sentry/fsimpl/sockfs/sockfs.go b/pkg/sentry/fsimpl/sockfs/sockfs.go
index c61818ff6..94a998568 100644
--- a/pkg/sentry/fsimpl/sockfs/sockfs.go
+++ b/pkg/sentry/fsimpl/sockfs/sockfs.go
@@ -81,10 +81,10 @@ func (fs *filesystem) PrependPath(ctx context.Context, vfsroot, vd vfs.VirtualDe
// inode implements kernfs.Inode.
type inode struct {
- kernfs.InodeNotDirectory
- kernfs.InodeNotSymlink
kernfs.InodeAttrs
kernfs.InodeNoopRefCount
+ kernfs.InodeNotDirectory
+ kernfs.InodeNotSymlink
}
// Open implements kernfs.Inode.Open.
@@ -92,6 +92,11 @@ func (i *inode) Open(ctx context.Context, rp *vfs.ResolvingPath, vfsd *vfs.Dentr
return nil, syserror.ENXIO
}
+// StatFS implements kernfs.Inode.StatFS.
+func (i *inode) StatFS(ctx context.Context, fs *vfs.Filesystem) (linux.Statfs, error) {
+ return vfs.GenericStatFS(linux.SOCKFS_MAGIC), nil
+}
+
// NewDentry constructs and returns a sockfs dentry.
//
// Preconditions: mnt.Filesystem() must have been returned by NewFilesystem().