File _service:tar_scm:backport-path-util-make-find_e... of Package systemd

File _service:tar_scm:backport-path-util-make-find_executable-work-without-proc-mou.patch of Package systemd

From 727d0b55f46468d6171f4a326bd3139bab3c93ab Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Mon, 23 Aug 2021 06:16:48 +0900
Subject: [PATCH] path-util: make find_executable() work without /proc mounted

Follow-up for 888f65ace6296ed61285d31db846babf1c11885e.

Hopefully fixes #20514.

(cherry picked from commit 93413acd3ef3a637a0f31a1d133b103e1dc81fd6)

Conflict:NA
Reference:https://github.com/systemd/systemd/commit/727d0b55f46468d6171f4a326bd3139bab3c93ab
---
 src/basic/path-util.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/basic/path-util.c b/src/basic/path-util.c
index e5afb5f5f5..13d71ed1b6 100644
--- a/src/basic/path-util.c
+++ b/src/basic/path-util.c
@@ -628,7 +628,11 @@ static int check_x_access(const char *path, int *ret_fd) {
                 return r;
 
         r = access_fd(fd, X_OK);
-        if (r < 0)
+        if (r == -ENOSYS) {
+                /* /proc is not mounted. Fallback to access(). */
+                if (access(path, X_OK) < 0)
+                        return -errno;
+        } else if (r < 0)
                 return r;
 
         if (ret_fd)
-- 
2.33.0