Adapted from cl/630063475.
This causes FUSE tests involving submounts to fail, because fuse.inode.Valid()
just returns false (fails revalidation) after the entry time expires, causing
all submounts to be unmounted; change it to perform revalidation instead, a la
Linux's fs/fuse/dir.c:fuse_dentry_revalidate(). This in turn requires that we
plumb the dentry's parent and name through kernfs.Inode.Valid().
PiperOrigin-RevId: 630476483
The presence of multiple packages in a single directory sometimes
confuses `go mod`, producing output like:
go: downloading gvisor.dev/gvisor v0.0.0-20210601174640-77dc0f5bc94d
$GOMODCACHE/gvisor.dev/gvisor@v0.0.0-20210601174640-77dc0f5bc94d/pkg/linewriter/linewriter.go:21:2: found packages sync (aliases.go) and seqatomic (generic_atomicptr_unsafe.go) in $GOMODCACHE/gvisor.dev/gvisor@v0.0.0-20210601174640-77dc0f5bc94d/pkg/sync
imports.go:67:2: found packages tcp (accept.go) and rcv (rcv_test.go) in $GOMODCACHE/gvisor.dev/gvisor@v0.0.0-20210601174640-77dc0f5bc94d/pkg/tcpip/transport/tcp
PiperOrigin-RevId: 376956213
Jamie Liu
NymanRobin
Adin Scannell
Tamir Duberstein