bcachefs: time_stats: shrink time_stat_buffer for better alignment

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

diff --git a/fs/bcachefs/time_stats.h b/fs/bcachefs/time_stats.h
index ed6c03c436c02e9e218c5ff1cf52244ee618cb02..5df61403744b1af43a1794942a706f5550d97bd3 100644 (file)
--- a/fs/bcachefs/time_stats.h
+++ b/fs/bcachefs/time_stats.h
@@ -64,7 +64,7 @@ struct time_stat_buffer {
        struct time_stat_buffer_entry {
                u64     start;
                u64     end;
-       }               entries[32];
+       }               entries[31];
 };
 
 struct bch2_time_stats {