Add sanity check that overlayCreate is called with an overlay parent inode.
PiperOrigin-RevId: 272987037
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@ -15,6 +15,7 @@
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package fs
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import (
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"fmt"
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"strings"
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"gvisor.dev/gvisor/pkg/abi/linux"
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@ -207,6 +208,11 @@ func overlayLookup(ctx context.Context, parent *overlayEntry, inode *Inode, name
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}
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func overlayCreate(ctx context.Context, o *overlayEntry, parent *Dirent, name string, flags FileFlags, perm FilePermissions) (*File, error) {
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// Sanity check.
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if parent.Inode.overlay == nil {
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panic(fmt.Sprintf("overlayCreate called with non-overlay parent inode (parent InodeOperations type is %T)", parent.Inode.InodeOperations))
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}
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// Dirent.Create takes renameMu if the Inode is an overlay Inode.
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if err := copyUpLockedForRename(ctx, parent); err != nil {
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return nil, err
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