From 7b3ff9a957630535ec58aeca7e41e6c63fa99114 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 15 Oct 2021 11:23:00 +0200
Subject: [PATCH] homework: don't bother with BLKRRPART on images that aren't
 block devices

We currently call this ioctl even if we are backed by a regular file,
which is actually the common case. While this doesn't really hurt, it
does result in very confusing logs.

(cherry picked from commit 6a1301d8c97dc650e4355bb7c193f5821b3383a8)

Conflict:NA
Reference:https://github.com/systemd/systemd/commit/7b3ff9a957630535ec58aeca7e41e6c63fa99114
---
 src/home/homework-luks.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/home/homework-luks.c b/src/home/homework-luks.c
index 64bbfe3c77..38d7d7cc70 100644
--- a/src/home/homework-luks.c
+++ b/src/home/homework-luks.c
@@ -2813,7 +2813,7 @@ int home_resize_luks(
                 if (r > 0)
                         log_info("Growing of partition completed.");
 
-                if (ioctl(image_fd, BLKRRPART, 0) < 0)
+                if (S_ISBLK(st.st_mode) && ioctl(image_fd, BLKRRPART, 0) < 0)
                         log_debug_errno(errno, "BLKRRPART failed on block device, ignoring: %m");
 
                 /* Tell LUKS about the new bigger size too */
@@ -2887,7 +2887,7 @@ int home_resize_luks(
                 if (r > 0)
                         log_info("Shrinking of partition completed.");
 
-                if (ioctl(image_fd, BLKRRPART, 0) < 0)
+                if (S_ISBLK(st.st_mode) && ioctl(image_fd, BLKRRPART, 0) < 0)
                         log_debug_errno(errno, "BLKRRPART failed on block device, ignoring: %m");
         } else {
                 r = home_store_embedded_identity(new_home, setup->root_fd, h->uid, embedded_home);
-- 
2.33.0