linux-kernel - [PATCH 08/10] time_stats: shrink time_stat

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Message-ID: <170873668069.1860949.912351762607273370.stgit@frogsfrogsfrogs>
Date: Fri, 23 Feb 2024 17:12:10 -0800
From: "Darrick J. Wong" <djwong@...nel.org>
To: akpm@...ux-foundation.org, daniel@...o.nz, kent.overstreet@...ux.dev,
 djwong@...nel.org
Cc: linux-xfs@...r.kernel.org, linux-bcachefs@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: [PATCH 08/10] time_stats: shrink time_stat_buffer for better
 alignment

From: Darrick J. Wong <djwong@...nel.org>

Shrink this percpu object by one array element so that the object size
becomes exactly 512 bytes.  This will lead to more efficient memory use,
hopefully.

Signed-off-by: Darrick J. Wong <djwong@...nel.org>
Signed-off-by: Kent Overstreet <kent.overstreet@...ux.dev>
---
 include/linux/time_stats.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/time_stats.h b/include/linux/time_stats.h
index dc539123f7997..b3c810fff963a 100644
--- a/include/linux/time_stats.h
+++ b/include/linux/time_stats.h
@@ -63,7 +63,7 @@ struct time_stat_buffer {
 	struct time_stat_buffer_entry {
 		u64	start;
 		u64	end;
-	}		entries[32];
+	}		entries[31];
 };

 struct time_stats {