From: Kent Overstreet <kent.overstreet@linux.dev>
Date: Sun, 18 Jun 2023 18:31:59 +0000 (-0400)
Subject: Switch to CLOCK_MONOTONIC_COARSE
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=0708303f4998df6388fc0e220227fee5213121c2;p=bcachefs-tools-debian

Switch to CLOCK_MONOTONIC_COARSE

CLOCK_MONOTONIC requires a syscall, and is much more expensive.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
---

diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 4fd3b68..d16ea76 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -71,7 +71,7 @@ static inline u64 sched_clock(void)
 {
 	struct timespec ts;
 
-	clock_gettime(CLOCK_MONOTONIC, &ts);
+	clock_gettime(CLOCK_MONOTONIC_COARSE, &ts);
 
 	return ((s64) ts.tv_sec * NSEC_PER_SEC) + ts.tv_nsec;
 }