Merging upstream version 1.72.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 9 insertions, 2 deletions

diff --git a/vendor/tokio/src/future/block_on.rs b/vendor/tokio/src/future/block_on.rs
index 91f9cc005..2c2ab3736 100644
--- a/vendor/tokio/src/future/block_on.rs
+++ b/vendor/tokio/src/future/block_on.rs
@@ -1,15 +1,22 @@
 use std::future::Future;
 
 cfg_rt! {
+    #[track_caller]
     pub(crate) fn block_on<F: Future>(f: F) -> F::Output {
-        let mut e = crate::runtime::enter::enter(false);
+        let mut e = crate::runtime::context::try_enter_blocking_region().expect(
+            "Cannot block the current thread from within a runtime. This \
+            happens because a function attempted to block the current \
+            thread while the thread is being used to drive asynchronous \
+            tasks."
+        );
         e.block_on(f).unwrap()
     }
 }
 
 cfg_not_rt! {
+    #[track_caller]
     pub(crate) fn block_on<F: Future>(f: F) -> F::Output {
-        let mut park = crate::park::thread::CachedParkThread::new();
+        let mut park = crate::runtime::park::CachedParkThread::new();
         park.block_on(f).unwrap()
     }
 }