From: Daan De Meyer <daan.j.demeyer@gmail.com>
Date: Wed, 27 Jul 2022 23:49:07 +0000 (+0200)
Subject: loop-util: Add loop_device_unrelinquish()
X-Git-Tag: v252-rc1~521^2~2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=24d59aeed3eb4a91dad2e7aea44237f1e3610477;p=thirdparty%2Fsystemd.git

loop-util: Add loop_device_unrelinquish()

Allows taking ownership of a loop device which makes sure that
loop_device_unrefp() will try to destroy it when it runs.
---

diff --git a/src/shared/loop-util.c b/src/shared/loop-util.c
index 530688fc97f..a5ad9145770 100644
--- a/src/shared/loop-util.c
+++ b/src/shared/loop-util.c
@@ -768,6 +768,11 @@ void loop_device_relinquish(LoopDevice *d) {
         d->relinquished = true;
 }
 
+void loop_device_unrelinquish(LoopDevice *d) {
+        assert(d);
+        d->relinquished = false;
+}
+
 int loop_device_open(const char *loop_path, int open_flags, LoopDevice **ret) {
         _cleanup_close_ int loop_fd = -1;
         _cleanup_free_ char *p = NULL;
diff --git a/src/shared/loop-util.h b/src/shared/loop-util.h
index 964ce3ed083..a33d7e3e59d 100644
--- a/src/shared/loop-util.h
+++ b/src/shared/loop-util.h
@@ -27,6 +27,7 @@ LoopDevice* loop_device_unref(LoopDevice *d);
 DEFINE_TRIVIAL_CLEANUP_FUNC(LoopDevice*, loop_device_unref);
 
 void loop_device_relinquish(LoopDevice *d);
+void loop_device_unrelinquish(LoopDevice *d);
 
 int loop_device_refresh_size(LoopDevice *d, uint64_t offset, uint64_t size);