From: Timo Sirainen <tss@iki.fi>
Date: Mon, 6 Oct 2014 18:15:31 +0000 (+0300)
Subject: sdbox: Fixed race condition when two processes mkdir() the same directory
X-Git-Tag: 2.2.14~54
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a4828c444096564c9f6759fa71b2de21cda73164;p=thirdparty%2Fdovecot%2Fcore.git

sdbox: Fixed race condition when two processes mkdir() the same directory
---

diff --git a/src/lib-storage/index/dbox-single/sdbox-file.c b/src/lib-storage/index/dbox-single/sdbox-file.c
index 2862aabd45..744cf7214a 100644
--- a/src/lib-storage/index/dbox-single/sdbox-file.c
+++ b/src/lib-storage/index/dbox-single/sdbox-file.c
@@ -255,7 +255,8 @@ int sdbox_file_create_fd(struct dbox_file *file, const char *path, bool parents)
 		dir = t_strdup_until(path, p);
 		if (mkdir_parents_chgrp(dir, perm->dir_create_mode,
 					perm->file_create_gid,
-					perm->file_create_gid_origin) < 0) {
+					perm->file_create_gid_origin) < 0 &&
+		   errno != EEXIST) {
 			mail_storage_set_critical(box->storage,
 				"mkdir_parents(%s) failed: %m", dir);
 			return -1;