Change lingering uses of "memfs" in fsimpl/tmpfs to "tmpfs".

PiperOrigin-RevId: 307422746

pkg/sentry/fsimpl/tmpfs/benchmark_test.go

@@ -168,7 +168,7 @@ func BenchmarkVFS1TmpfsStat(b *testing.B) {
 	}
 }
 
-func BenchmarkVFS2MemfsStat(b *testing.B) {
+func BenchmarkVFS2TmpfsStat(b *testing.B) {
 	for _, depth := range depths {
 		b.Run(fmt.Sprintf("%d", depth), func(b *testing.B) {
 			ctx := contexttest.Context(b)
@@ -362,7 +362,7 @@ func BenchmarkVFS1TmpfsMountStat(b *testing.B) {
 	}
 }
 
-func BenchmarkVFS2MemfsMountStat(b *testing.B) {
+func BenchmarkVFS2TmpfsMountStat(b *testing.B) {
 	for _, depth := range depths {
 		b.Run(fmt.Sprintf("%d", depth), func(b *testing.B) {
 			ctx := contexttest.Context(b)

pkg/sentry/fsimpl/tmpfs/filesystem.go

@@ -148,7 +148,7 @@ func (fs *filesystem) doCreateAt(rp *vfs.ResolvingPath, dir bool, create func(pa
 	if !dir && rp.MustBeDir() {
 		return syserror.ENOENT
 	}
-	// In memfs, the only way to cause a dentry to be disowned is by removing
+	// In tmpfs, the only way to cause a dentry to be disowned is by removing
 	// it from the filesystem, so this check is equivalent to checking if
 	// parent has been removed.
 	if parent.vfsd.IsDisowned() {

pkg/sentry/fsimpl/tmpfs/tmpfs.go

@@ -247,7 +247,7 @@ func (i *inode) incLinksLocked() {
 		panic("tmpfs.inode.incLinksLocked() called with no existing links")
 	}
 	if i.nlink == maxLinks {
-		panic("memfs.inode.incLinksLocked() called with maximum link count")
+		panic("tmpfs.inode.incLinksLocked() called with maximum link count")
 	}
 	atomic.AddUint32(&i.nlink, 1)
 }