From 25f1727de9e5681a5ceefe1516a5a01fa4ca624a Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher <jakobunt@gmail.com>
Date: Sat, 23 May 2020 22:54:23 +0200
Subject: [PATCH] syscallcompat: getdents: retry on EINTR

Fixes: https://github.com/rfjakob/gocryptfs/issues/483
Related: https://github.com/golang/go/issues/38836
---
 internal/syscallcompat/getdents_linux.go | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/internal/syscallcompat/getdents_linux.go b/internal/syscallcompat/getdents_linux.go
index 2674cb3..6cfb033 100644
--- a/internal/syscallcompat/getdents_linux.go
+++ b/internal/syscallcompat/getdents_linux.go
@@ -35,7 +35,13 @@ func getdents(fd int) ([]fuse.DirEntry, error) {
 	tmp := make([]byte, 10000)
 	for {
 		n, err := unix.Getdents(fd, tmp)
-		if err != nil {
+		// unix.Getdents has been observed to return EINTR on cifs mounts
+		if err == unix.EINTR {
+			if n > 0 {
+				smartBuf.Write(tmp[:n])
+			}
+			continue
+		} else if err != nil {
 			return nil, err
 		}
 		if n == 0 {