From: Li RongQing The 'memory_idle_ms_percentiles' array in DAMON_STAT is updated frequently by the kernel to reflect the latest idle time statistics. Marking it as '__read_mostly' is inappropriate for data that is regularly written to, as it can lead to cache pollution in the read-mostly section. Remove the '__read_mostly' annotation to accurately reflect the variable's usage pattern. Signed-off-by: Li RongQing --- mm/damon/stat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/damon/stat.c b/mm/damon/stat.c index ed8e362..5c4eec0 100644 --- a/mm/damon/stat.c +++ b/mm/damon/stat.c @@ -34,7 +34,7 @@ module_param(estimated_memory_bandwidth, ulong, 0400); MODULE_PARM_DESC(estimated_memory_bandwidth, "Estimated memory bandwidth usage in bytes per second"); -static long memory_idle_ms_percentiles[101] __read_mostly = {0,}; +static long memory_idle_ms_percentiles[101] = {0,}; module_param_array(memory_idle_ms_percentiles, long, NULL, 0400); MODULE_PARM_DESC(memory_idle_ms_percentiles, "Memory idle time percentiles in milliseconds"); -- 2.9.4