From 9e59bf2f6a6629f70cd4004a73a768745e142d4b Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 27 Apr 2026 09:09:07 +0530
Subject: [PATCH] Avoid extra lstat() per entry when removing directory tree

---
 tools/utils/file_at_fd.go | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/tools/utils/file_at_fd.go b/tools/utils/file_at_fd.go
index f7fdbf37b..818ad8d26 100644
--- a/tools/utils/file_at_fd.go
+++ b/tools/utils/file_at_fd.go
@@ -243,7 +243,7 @@ func RemoveChildren(dirFile *os.File) error {
 
 	for {
 		// Read names in small chunks to handle very large directories
-		names, err := dirFile.Readdirnames(64)
+		entries, err := dirFile.ReadDir(64)
 		if err != nil {
 			if errors.Is(err, io.EOF) {
 				break
@@ -254,16 +254,9 @@ func RemoveChildren(dirFile *os.File) error {
 			break
 		}
 
-		for _, name := range names {
-			var stat os.FileInfo
-			// Get file info relative to the parent FD
-			if stat, err = LstatAt(dirFile, name); err != nil {
-				if firstErr == nil {
-					firstErr = err
-				}
-				continue
-			}
-			if stat.IsDir() {
+		for _, entry := range entries {
+			name := entry.Name()
+			if entry.IsDir() {
 				// Open subdirectory relative to parent FD
 				var childFile *os.File
 				if childFile, err = OpenDirAt(dirFile, name); err != nil {