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Avoid extra lstat() per entry when removing directory tree

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Kovid Goyal
2026-04-27 09:09:07 +05:30
parent 0990da61e9
commit 9e59bf2f6a
1 changed files with 4 additions and 11 deletions
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15
tools/utils/file_at_fd.go
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@@ -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 {