From: Junxiao Bi <junxiao.bi@oracle.com>
Date: Tue, 7 Nov 2023 18:48:06 +0000 (-0800)
Subject: losetup: report lost loop devices for finding free loop
X-Git-Tag: v2.40-rc1~147
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=556dac801322edd60485bc45312523527d7e5fc2;p=thirdparty%2Futil-linux.git

losetup: report lost loop devices for finding free loop

commit a6ca0456cc6d("loopdev: report lost loop devices") forgot to
report lost loop device for finding free loop case. With this path,
it will show the following if next free loop device is lost.

 # ./losetup -f
 /dev/loop1 (lost)
 # ./losetup -f /tmp/test.img
 lt-losetup: /tmp/test.img: failed to set up loop device: No such file or directory
 lt-losetup: device node /dev/loop1 (7:1) is lost. You may use mknod(1) to recover it.

Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
---

diff --git a/sys-utils/losetup.c b/sys-utils/losetup.c
index b218ce14d5..afeb5babbd 100644
--- a/sys-utils/losetup.c
+++ b/sys-utils/losetup.c
@@ -950,7 +950,8 @@ int main(int argc, char **argv)
 	case A_FIND_FREE:
 		res = find_unused(&lc);
 		if (!res)
-			printf("%s\n", loopcxt_get_device(&lc));
+			printf("%s%s\n", loopcxt_get_device(&lc),
+				loopcxt_is_lost(&lc) ? " (lost)" : "");
 		break;
 	case A_SHOW:
 		if (list)
@@ -991,6 +992,7 @@ int main(int argc, char **argv)
 	}
 
 	if (res && (act == A_SET_CAPACITY
+		    || act == A_CREATE
 		    || act == A_SET_DIRECT_IO
 		    || act == A_SET_BLOCKSIZE)
 	    && loopcxt_is_lost(&lc))