From e95612b126307e33d9889e0ba028a1f031101690 Mon Sep 17 00:00:00 2001
From: Matthew Maurer <matthew.r.maurer@gmail.com>
Date: Mon, 9 Aug 2021 19:01:45 -0700
Subject: [PATCH] Switch Instant to use CLOCK_BOOTTIME

For Linux-like platforms, use CLOCK_BOOTTIME which continues ticking
during suspend. Without this change, `Duration` between two `Instant`s
can bear little relation to reality if a suspend took place in between.

Fixes rust-lang#87906
---
 library/std/src/sys/unix/time.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/std/src/sys/unix/time.rs b/library/std/src/sys/unix/time.rs
index 23a5c81c0053b..153cd0159beab 100644
--- a/library/std/src/sys/unix/time.rs
+++ b/library/std/src/sys/unix/time.rs
@@ -293,7 +293,7 @@ mod inner {
 
     impl Instant {
         pub fn now() -> Instant {
-            Instant { t: now(libc::CLOCK_MONOTONIC) }
+            Instant { t: now(libc::CLOCK_BOOTTIME) }
         }
 
         pub const fn zero() -> Instant {