os: add a comment inside RemoveAll

bradfitz · bradfitz · commit db492b8df41c · 2014-09-23T14:55:19.000-07:00
LGTM=r R=r CC=golang-codereviews https://golang.org/cl/149950043
diff --git a/src/os/path.go b/src/os/path.go
@@ -87,6 +87,8 @@ func RemoveAll(path string) error {
 	fd, err := Open(path)
 	if err != nil {
 		if IsNotExist(err) {
+			// Race. It was deleted between the Lstat and Open.
+			// Return nil per RemoveAll's docs.
 			return nil
 		}
 		return err

Original file line number	Diff line number	Diff line change
`@@ -87,6 +87,8 @@ func RemoveAll(path string) error {`
`87`	`87`	`fd, err := Open(path)`
`88`	`88`	`if err != nil {`
`89`	`89`	`if IsNotExist(err) {`
	`90`	`+ // Race. It was deleted between the Lstat and Open.`
	`91`	`+ // Return nil per RemoveAll's docs.`
`90`	`92`	`return nil`
`91`	`93`	`}`
`92`	`94`	`return err`