From d42f626808fb60b4c28752ca050411a05d178e0d Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jackpot51@gmail.com>
Date: Sun, 27 Nov 2022 09:25:03 -0700
Subject: [PATCH] nvmed: Yield instead of spin when waiting for submission
 queue item

---
 nvmed/src/nvme/mod.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nvmed/src/nvme/mod.rs b/nvmed/src/nvme/mod.rs
index c76673541e..8129169afd 100644
--- a/nvmed/src/nvme/mod.rs
+++ b/nvmed/src/nvme/mod.rs
@@ -4,6 +4,7 @@ use std::fs::File;
 use std::ptr;
 use std::sync::atomic::{AtomicU16, AtomicU64, AtomicUsize, Ordering};
 use std::sync::{Mutex, RwLock};
+use std::thread;
 
 use crossbeam_channel::Sender;
 use smallvec::{smallvec, SmallVec};
@@ -471,7 +472,7 @@ impl Nvme {
                     return entry;
                 }
             }
-            unsafe { pause(); }
+            thread::yield_now();
         }
     }