src/os/file_unix.go                  |  4 ++--
 src/os/removeall_at.go               | 34 +++++++++++++---------------------
 src/syscall/zerrors_solaris_amd64.go |  1 +

diff --git a/src/os/file_unix.go b/src/os/file_unix.go
index 533a48404b9d090e390823222f2566348e8478e0..f4709a4a295c12ffe82f0fdb84ea6ad9cda3b3ce 100644
--- a/src/os/file_unix.go
+++ b/src/os/file_unix.go
@@ -157,7 +157,7 @@ 	// non-blocking mode.
 	kindNonBlock
 	// kindNoPoll means that we should not put the descriptor into
 	// non-blocking mode, because we know it is not a pipe or FIFO.
-	// Used by openFdAt for directories.
+	// Used by openDirAt for directories.
 	kindNoPoll
 )
 
@@ -256,7 +256,7 @@ // On Unix-like systems, it is "/dev/null"; on Windows, "NUL".
 const DevNull = "/dev/null"
 
 // openFileNolog is the Unix implementation of OpenFile.
-// Changes here should be reflected in openFdAt, if relevant.
+// Changes here should be reflected in openDirAt, if relevant.
 func openFileNolog(name string, flag int, perm FileMode) (*File, error) {
 	setSticky := false
 	if !supportsCreateWithStickyBit && flag&O_CREATE != 0 && perm&ModeSticky != 0 {
diff --git a/src/os/removeall_at.go b/src/os/removeall_at.go
index 8ea5df411740fd7dfbb5025b11b478502ca1ff71..774ca15823bbc141c8c5293de729889065e0902d 100644
--- a/src/os/removeall_at.go
+++ b/src/os/removeall_at.go
@@ -74,22 +74,7 @@ 	// Otherwise just return the error.
 	if err != syscall.EISDIR && err != syscall.EPERM && err != syscall.EACCES {
 		return &PathError{Op: "unlinkat", Path: base, Err: err}
 	}
-
-	// Is this a directory we need to recurse into?
-	var statInfo syscall.Stat_t
-	statErr := ignoringEINTR(func() error {
-		return unix.Fstatat(parentFd, base, &statInfo, unix.AT_SYMLINK_NOFOLLOW)
-	})
-	if statErr != nil {
-		if IsNotExist(statErr) {
-			return nil
-		}
-		return &PathError{Op: "fstatat", Path: base, Err: statErr}
-	}
-	if statInfo.Mode&syscall.S_IFMT != syscall.S_IFDIR {
-		// Not a directory; return the error from the unix.Unlinkat.
-		return &PathError{Op: "unlinkat", Path: base, Err: err}
-	}
+	uErr := err
 
 	// Remove the directory's entries.
 	var recurseErr error
@@ -98,10 +83,14 @@ 		const reqSize = 1024
 		var respSize int
 
 		// Open the directory to recurse into
-		file, err := openFdAt(parentFd, base)
+		file, err := openDirAt(parentFd, base)
 		if err != nil {
 			if IsNotExist(err) {
 				return nil
+			}
+			if err == syscall.ENOTDIR {
+				// Not a directory; return the error from the unix.Unlinkat.
+				return &PathError{Op: "unlinkat", Path: base, Err: uErr}
 			}
 			recurseErr = &PathError{Op: "openfdat", Path: base, Err: err}
 			break
@@ -168,16 +157,19 @@ 	}
 	return &PathError{Op: "unlinkat", Path: base, Err: unlinkError}
 }
 
-// openFdAt opens path relative to the directory in fd.
-// Other than that this should act like openFileNolog.
+// openDirAt opens a directory name relative to the directory referred to by
+// the file descriptor dirfd. If name is anything but a directory (this
+// includes a symlink to one), it should return an error. Other than that this
+// should act like openFileNolog.
+//
 // This acts like openFileNolog rather than OpenFile because
 // we are going to (try to) remove the file.
 // The contents of this file are not relevant for test caching.
-func openFdAt(dirfd int, name string) (*File, error) {
+func openDirAt(dirfd int, name string) (*File, error) {
 	var r int
 	for {
 		var e error
-		r, e = unix.Openat(dirfd, name, O_RDONLY|syscall.O_CLOEXEC, 0)
+		r, e = unix.Openat(dirfd, name, O_RDONLY|syscall.O_CLOEXEC|syscall.O_DIRECTORY|syscall.O_NOFOLLOW, 0)
 		if e == nil {
 			break
 		}
diff --git a/src/syscall/zerrors_solaris_amd64.go b/src/syscall/zerrors_solaris_amd64.go
index 4a1d9c3d26669f9cdb410868b6ff1b626a6a4fb1..b2c81d9a51f97a2fa589400c1d9b370fd571c254 100644
--- a/src/syscall/zerrors_solaris_amd64.go
+++ b/src/syscall/zerrors_solaris_amd64.go
@@ -634,6 +634,7 @@ 	O_ACCMODE                     = 0x600003
 	O_APPEND                      = 0x8
 	O_CLOEXEC                     = 0x800000
 	O_CREAT                       = 0x100
+	O_DIRECTORY                   = 0x1000000
 	O_DSYNC                       = 0x40
 	O_EXCL                        = 0x400
 	O_EXEC                        = 0x400000