The patch titled
Subject: mm/damon/core: split damos application logic into a new function
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-core-split-damos-application-logic-into-a-new-function.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-core-split-damos-application-logic-into-a-new-function.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/core: split damos application logic into a new function
Date: Wed, 26 Oct 2022 22:59:33 +0000
The DAMOS action applying function, 'damon_do_apply_schemes()', is still
long and not easy to read. Split out the code for applying a single
action to a single region into a new function for better readability.
Link: https://lkml.kernel.org/r/20221026225943.100429-3-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/damon/core.c~mm-damon-core-split-damos-application-logic-into-a-new-function
+++ a/mm/damon/core.c
@@ -755,6 +755,44 @@ static bool damos_skip_charged_region(st
return false;
}
+static void damos_apply_scheme(struct damon_ctx *c, struct damon_target *t,
+ struct damon_region *r, struct damos *s)
+{
+ struct damos_quota *quota = &s->quota;
+ unsigned long sz = damon_sz_region(r);
+ struct timespec64 begin, end;
+ unsigned long sz_applied = 0;
+
+ if (c->ops.apply_scheme) {
+ if (quota->esz && quota->charged_sz + sz > quota->esz) {
+ sz = ALIGN_DOWN(quota->esz - quota->charged_sz,
+ DAMON_MIN_REGION);
+ if (!sz)
+ goto update_stat;
+ damon_split_region_at(t, r, sz);
+ }
+ ktime_get_coarse_ts64(&begin);
+ sz_applied = c->ops.apply_scheme(c, t, r, s);
+ ktime_get_coarse_ts64(&end);
+ quota->total_charged_ns += timespec64_to_ns(&end) -
+ timespec64_to_ns(&begin);
+ quota->charged_sz += sz;
+ if (quota->esz && quota->charged_sz >= quota->esz) {
+ quota->charge_target_from = t;
+ quota->charge_addr_from = r->ar.end + 1;
+ }
+ }
+ if (s->action != DAMOS_STAT)
+ r->age = 0;
+
+update_stat:
+ s->stat.nr_tried++;
+ s->stat.sz_tried += sz;
+ if (sz_applied)
+ s->stat.nr_applied++;
+ s->stat.sz_applied += sz_applied;
+}
+
static void damon_do_apply_schemes(struct damon_ctx *c,
struct damon_target *t,
struct damon_region *r)
@@ -763,9 +801,6 @@ static void damon_do_apply_schemes(struc
damon_for_each_scheme(s, c) {
struct damos_quota *quota = &s->quota;
- unsigned long sz;
- struct timespec64 begin, end;
- unsigned long sz_applied = 0;
if (!s->wmarks.activated)
continue;
@@ -780,37 +815,7 @@ static void damon_do_apply_schemes(struc
if (!damos_valid_target(c, t, r, s))
continue;
- /* Apply the scheme */
- sz = damon_sz_region(r);
- if (c->ops.apply_scheme) {
- if (quota->esz &&
- quota->charged_sz + sz > quota->esz) {
- sz = ALIGN_DOWN(quota->esz - quota->charged_sz,
- DAMON_MIN_REGION);
- if (!sz)
- goto update_stat;
- damon_split_region_at(t, r, sz);
- }
- ktime_get_coarse_ts64(&begin);
- sz_applied = c->ops.apply_scheme(c, t, r, s);
- ktime_get_coarse_ts64(&end);
- quota->total_charged_ns += timespec64_to_ns(&end) -
- timespec64_to_ns(&begin);
- quota->charged_sz += sz;
- if (quota->esz && quota->charged_sz >= quota->esz) {
- quota->charge_target_from = t;
- quota->charge_addr_from = r->ar.end + 1;
- }
- }
- if (s->action != DAMOS_STAT)
- r->age = 0;
-
-update_stat:
- s->stat.nr_tried++;
- s->stat.sz_tried += sz;
- if (sz_applied)
- s->stat.nr_applied++;
- s->stat.sz_applied += sz_applied;
+ damos_apply_scheme(c, t, r, s);
}
}
_
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
