From c658f97d99c9c62c521e4793c52b9b1b53d71290 Mon Sep 17 00:00:00 2001
From: Ganesh Vernekar <ganesh.vernekar@reddit.com>
Date: Mon, 26 Jan 2026 13:05:36 -0800
Subject: [PATCH] Fix atomic variable alignment

Signed-off-by: Ganesh Vernekar <ganesh.vernekar@reddit.com>
---
 tsdb/fileutil/file_cache.go | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/tsdb/fileutil/file_cache.go b/tsdb/fileutil/file_cache.go
index 326d01cbd5..f4915504ab 100644
--- a/tsdb/fileutil/file_cache.go
+++ b/tsdb/fileutil/file_cache.go
@@ -47,6 +47,11 @@ type cacheEntry struct {
 // FileCache is a shared LRU cache for file blocks.
 // It provides configurable memory limits, efficient eviction, and Prometheus metrics.
 type FileCache struct {
+	requests   atomic.Uint64 // Total cache access attempts
+	misses     atomic.Uint64 // Cache misses
+	evictions  atomic.Uint64 // Number of evictions
+	nextFileID atomic.Uint64 // File ID counter for unique identification
+
 	mu          sync.RWMutex
 	maxSize     int64
 	currentSize int64
@@ -58,15 +63,9 @@ type FileCache struct {
 	pool sync.Pool
 
 	// Metrics - all atomic for lock-free reads
-	requests  atomic.Uint64 // Total cache access attempts
-	misses    atomic.Uint64 // Cache misses
-	evictions atomic.Uint64 // Number of evictions
 
 	// Prometheus metrics
 	metrics *fileCacheMetrics
-
-	// File ID counter for unique identification
-	nextFileID atomic.Uint64
 }
 
 // fileCacheMetrics holds Prometheus metrics for the file cache.