The patch titled
Subject: mm/damon/sysfs: use damon_addr_range for region's start and end values
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-sysfs-use-damon_addr_range-for-regions-start-and-end-values.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-sysfs-use-damon_addr_range-for-regions-start-and-end-values.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: mm/damon/sysfs: use damon_addr_range for region's start and end values
Date: Wed, 26 Oct 2022 22:59:36 +0000
DAMON has a struct for each address range but DAMON sysfs interface is
using the low type (unsigned long) for storing the start and end addresses
of regions. Use the dedicated struct for better type safety.
Link: https://lkml.kernel.org/r/20221026225943.100429-6-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/damon/sysfs.c~mm-damon-sysfs-use-damon_addr_range-for-regions-start-and-end-values
+++ a/mm/damon/sysfs.c
@@ -1062,13 +1062,11 @@ static struct kobj_type damon_sysfs_sche
struct damon_sysfs_region {
struct kobject kobj;
- unsigned long start;
- unsigned long end;
+ struct damon_addr_range ar;
};
static struct damon_sysfs_region *damon_sysfs_region_alloc(
- unsigned long start,
- unsigned long end)
+ struct damon_addr_range ar)
{
struct damon_sysfs_region *region = kmalloc(sizeof(*region),
GFP_KERNEL);
@@ -1076,8 +1074,7 @@ static struct damon_sysfs_region *damon_
if (!region)
return NULL;
region->kobj = (struct kobject){};
- region->start = start;
- region->end = end;
+ region->ar = ar;
return region;
}
@@ -1087,7 +1084,7 @@ static ssize_t start_show(struct kobject
struct damon_sysfs_region *region = container_of(kobj,
struct damon_sysfs_region, kobj);
- return sysfs_emit(buf, "%lu\n", region->start);
+ return sysfs_emit(buf, "%lu\n", region->ar.start);
}
static ssize_t start_store(struct kobject *kobj, struct kobj_attribute *attr,
@@ -1095,7 +1092,7 @@ static ssize_t start_store(struct kobjec
{
struct damon_sysfs_region *region = container_of(kobj,
struct damon_sysfs_region, kobj);
- int err = kstrtoul(buf, 0, ®ion->start);
+ int err = kstrtoul(buf, 0, ®ion->ar.start);
return err ? err : count;
}
@@ -1106,7 +1103,7 @@ static ssize_t end_show(struct kobject *
struct damon_sysfs_region *region = container_of(kobj,
struct damon_sysfs_region, kobj);
- return sysfs_emit(buf, "%lu\n", region->end);
+ return sysfs_emit(buf, "%lu\n", region->ar.end);
}
static ssize_t end_store(struct kobject *kobj, struct kobj_attribute *attr,
@@ -1114,7 +1111,7 @@ static ssize_t end_store(struct kobject
{
struct damon_sysfs_region *region = container_of(kobj,
struct damon_sysfs_region, kobj);
- int err = kstrtoul(buf, 0, ®ion->end);
+ int err = kstrtoul(buf, 0, ®ion->ar.end);
return err ? err : count;
}
@@ -1187,7 +1184,7 @@ static int damon_sysfs_regions_add_dirs(
regions->regions_arr = regions_arr;
for (i = 0; i < nr_regions; i++) {
- region = damon_sysfs_region_alloc(0, 0);
+ region = damon_sysfs_region_alloc((struct damon_addr_range){});
if (!region) {
damon_sysfs_regions_rm_dirs(regions);
return -ENOMEM;
@@ -2147,11 +2144,11 @@ static int damon_sysfs_set_regions(struc
struct damon_sysfs_region *sys_region =
sysfs_regions->regions_arr[i];
- if (sys_region->start > sys_region->end)
+ if (sys_region->ar.start > sys_region->ar.end)
goto out;
- ranges[i].start = sys_region->start;
- ranges[i].end = sys_region->end;
+ ranges[i].start = sys_region->ar.start;
+ ranges[i].end = sys_region->ar.end;
if (i == 0)
continue;
if (ranges[i - 1].end > ranges[i].start)
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
mm-damon-core-split-out-damos-charged-region-skip-logic-into-a-new-function.patch
mm-damon-core-split-damos-application-logic-into-a-new-function.patch
mm-damon-core-split-out-scheme-stat-update-logic-into-a-new-function.patch
mm-damon-core-split-out-scheme-quota-adjustment-logic-into-a-new-function.patch
mm-damon-sysfs-use-damon_addr_range-for-regions-start-and-end-values.patch
mm-damon-sysfs-remove-parameters-of-damon_sysfs_region_alloc.patch
mm-damon-sysfs-move-sysfs_lock-to-common-module.patch
mm-damon-sysfs-move-unsigned-long-range-directory-to-common-module.patch
mm-damon-sysfs-split-out-kdamond-independent-schemes-stats-update-logic-into-a-new-function.patch
mm-damon-sysfs-split-out-schemes-directory-implementation-to-separate-file.patch
mm-damon-modules-deduplicate-init-steps-for-damon-context-setup.patch
mm-damon-reclaimlru_sort-remove-unnecessarily-included-headers.patch
mm-damon-reclaim-enable-and-disable-synchronously.patch
selftests-damon-add-tests-for-damon_reclaims-enabled-parameter.patch
mm-damon-lru_sort-enable-and-disable-synchronously.patch
selftests-damon-add-tests-for-damon_lru_sorts-enabled-parameter.patch
