Here, i rename sz_damon_region() to damon_sz_region(), and move it to
"include/linux/damon.h", because in many places, we can to use this func.
Suggested-by: SeongJae Park <[email protected]>
Signed-off-by: Xin Hao <[email protected]>
---
Changes from v1
( https://lore.kernel.org/linux-mm/[email protected]/)
- Move sz_damon_region() to static inline in include/linux/damon.h
- Rename sz_damon_region() to damon_sz_region()
include/linux/damon.h | 6 ++++++
mm/damon/core.c | 9 ++-------
2 files changed, 8 insertions(+), 7 deletions(-)
diff --git a/include/linux/damon.h b/include/linux/damon.h
index ed5470f50bab..620ada094c3b 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -484,6 +484,12 @@ static inline struct damon_region *damon_first_region(struct damon_target *t)
return list_first_entry(&t->regions_list, struct damon_region, list);
}
+static inline unsigned long damon_sz_region(struct damon_region *r)
+{
+ return r->ar.end - r->ar.start;
+}
+
+
#define damon_for_each_region(r, t) \
list_for_each_entry(r, &t->regions_list, list)
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 4de8c7c52979..5b9e0d585aef 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -864,18 +864,13 @@ static void kdamond_apply_schemes(struct damon_ctx *c)
}
}
-static inline unsigned long sz_damon_region(struct damon_region *r)
-{
- return r->ar.end - r->ar.start;
-}
-
/*
* Merge two adjacent regions into one region
*/
static void damon_merge_two_regions(struct damon_target *t,
struct damon_region *l, struct damon_region *r)
{
- unsigned long sz_l = sz_damon_region(l), sz_r = sz_damon_region(r);
+ unsigned long sz_l = damon_sz_region(l), sz_r = damon_sz_region(r);
l->nr_accesses = (l->nr_accesses * sz_l + r->nr_accesses * sz_r) /
(sz_l + sz_r);
@@ -904,7 +899,7 @@ static void damon_merge_regions_of(struct damon_target *t, unsigned int thres,
if (prev && prev->ar.end == r->ar.start &&
abs(prev->nr_accesses - r->nr_accesses) <= thres &&
- sz_damon_region(prev) + sz_damon_region(r) <= sz_limit)
+ damon_sz_region(prev) + damon_sz_region(r) <= sz_limit)
damon_merge_two_regions(t, prev, r);
else
prev = r;
--
2.31.0
In many place, we can use damon_sz_region() to instead of "r->ar.end -
r->ar.start".
Suggested-by: SeongJae Park <[email protected]>
Signed-off-by: Xin Hao <[email protected]>
---
Changes from v1
( https://lore.kernel.org/linux-mm/[email protected]/)
- Move sz_damon_region() to static inline in include/linux/damon.h
- Rename sz_damon_region() to damon_sz_region()
mm/damon/core.c | 17 ++++++++---------
mm/damon/vaddr.c | 4 ++--
2 files changed, 10 insertions(+), 11 deletions(-)
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 5b9e0d585aef..515ac4e52a11 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -490,7 +490,7 @@ static unsigned long damon_region_sz_limit(struct damon_ctx *ctx)
damon_for_each_target(t, ctx) {
damon_for_each_region(r, t)
- sz += r->ar.end - r->ar.start;
+ sz += damon_sz_region(r);
}
if (ctx->attrs.min_nr_regions)
@@ -673,7 +673,7 @@ static bool __damos_valid_target(struct damon_region *r, struct damos *s)
{
unsigned long sz;
- sz = r->ar.end - r->ar.start;
+ sz = damon_sz_region(r);
return s->pattern.min_sz_region <= sz &&
sz <= s->pattern.max_sz_region &&
s->pattern.min_nr_accesses <= r->nr_accesses &&
@@ -701,7 +701,7 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
damon_for_each_scheme(s, c) {
struct damos_quota *quota = &s->quota;
- unsigned long sz = r->ar.end - r->ar.start;
+ unsigned long sz = damon_sz_region(r);
struct timespec64 begin, end;
unsigned long sz_applied = 0;
@@ -730,14 +730,14 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
sz = ALIGN_DOWN(quota->charge_addr_from -
r->ar.start, DAMON_MIN_REGION);
if (!sz) {
- if (r->ar.end - r->ar.start <=
- DAMON_MIN_REGION)
+ if (damon_sz_region(r) <=
+ DAMON_MIN_REGION)
continue;
sz = DAMON_MIN_REGION;
}
damon_split_region_at(t, r, sz);
r = damon_next_region(r);
- sz = r->ar.end - r->ar.start;
+ sz = damon_sz_region(r);
}
quota->charge_target_from = NULL;
quota->charge_addr_from = 0;
@@ -842,8 +842,7 @@ static void kdamond_apply_schemes(struct damon_ctx *c)
continue;
score = c->ops.get_scheme_score(
c, t, r, s);
- quota->histogram[score] +=
- r->ar.end - r->ar.start;
+ quota->histogram[score] += damon_sz_region(r);
if (score > max_score)
max_score = score;
}
@@ -957,7 +956,7 @@ static void damon_split_regions_of(struct damon_target *t, int nr_subs)
int i;
damon_for_each_region_safe(r, next, t) {
- sz_region = r->ar.end - r->ar.start;
+ sz_region = damon_sz_region(r);
for (i = 0; i < nr_subs - 1 &&
sz_region > 2 * DAMON_MIN_REGION; i++) {
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index ea94e0b2c311..15f03df66db6 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -72,7 +72,7 @@ static int damon_va_evenly_split_region(struct damon_target *t,
return -EINVAL;
orig_end = r->ar.end;
- sz_orig = r->ar.end - r->ar.start;
+ sz_orig = damon_sz_region(r);
sz_piece = ALIGN_DOWN(sz_orig / nr_pieces, DAMON_MIN_REGION);
if (!sz_piece)
@@ -618,7 +618,7 @@ static unsigned long damos_madvise(struct damon_target *target,
{
struct mm_struct *mm;
unsigned long start = PAGE_ALIGN(r->ar.start);
- unsigned long len = PAGE_ALIGN(r->ar.end - r->ar.start);
+ unsigned long len = PAGE_ALIGN(damon_sz_region(r));
unsigned long applied;
mm = damon_get_mm(target);
--
2.31.0
On Tue, 27 Sep 2022 08:19:45 +0800 Xin Hao <[email protected]> wrote:
> Here, i rename sz_damon_region() to damon_sz_region(), and move it to
> "include/linux/damon.h", because in many places, we can to use this func.
Thank you for your works, Xin!
>
> Suggested-by: SeongJae Park <[email protected]>
> Signed-off-by: Xin Hao <[email protected]>
For the series,
Reviewed-by: SeongJae Park <[email protected]>
Thanks,
SJ
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