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mm/damon/sysfs-schemes: use damon_nr_accesses_mvsum() for damo regions

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damon_nr_accesses_mvsum() returns a value same to nr_accesses_bp.  Also
the function is more simple and therefore more tolerant to errors. 
Execution of the function would be more expensive than the simple read of
the field, but because the function is quite simple, the overhead should
be negligible.  Use it in the DAMON sysfs interface for scheme-tried
regions, instead of the nr_accesses_bp.

Link: https://lore.kernel.org/20260630040812.149729-8-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SJ Park
2026-07-30 19:40:34 -07:00
committed by Andrew Morton
parent bcea0202d4
commit e4375bcf0f
1 changed files with 3 additions and 3 deletions
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mm/damon/sysfs-schemes.c
+3 -3
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@@ -157,7 +157,7 @@ struct damon_sysfs_scheme_region {
};
static struct damon_sysfs_scheme_region *damon_sysfs_scheme_region_alloc(
struct damon_region *region)
struct damon_region *region, struct damon_ctx *ctx)
{
struct damon_sysfs_scheme_region *sysfs_region = kmalloc_obj(*sysfs_region);
@@ -165,7 +165,7 @@ static struct damon_sysfs_scheme_region *damon_sysfs_scheme_region_alloc(
return NULL;
sysfs_region->kobj = (struct kobject){};
sysfs_region->ar = region->ar;
sysfs_region->nr_accesses = region->nr_accesses_bp / 10000;
sysfs_region->nr_accesses = damon_nr_accesses_mvsum(region, ctx);
sysfs_region->age = region->age;
sysfs_region->probes = NULL;
INIT_LIST_HEAD(&sysfs_region->list);
@@ -3122,7 +3122,7 @@ void damos_sysfs_populate_region_dir(struct damon_sysfs_schemes *sysfs_schemes,
if (total_bytes_only)
return;
region = damon_sysfs_scheme_region_alloc(r);
region = damon_sysfs_scheme_region_alloc(r, ctx);
if (!region)
return;
region->sz_filter_passed = sz_filter_passed;