Total size of memory that passed DAMON operations set layer-handled
DAMOS filters per scheme is provided to DAMON core API and ABI (sysfs
interface) users. It is useful, but that for each region can be more
fine-grained information. Provide it to users of DAMON core API,
specifically damos_walk() users, by passing the data to
damos_walk_control->walk_fn().
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
---
include/linux/damon.h | 2 +-
mm/damon/core.c | 7 ++++---
mm/damon/sysfs.c | 2 +-
3 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/include/linux/damon.h b/include/linux/damon.h
index 4a68bb38aad5..b88f710297a9 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -393,7 +393,7 @@ struct damos;
struct damos_walk_control {
void (*walk_fn)(void *data, struct damon_ctx *ctx,
struct damon_target *t, struct damon_region *r,
- struct damos *s);
+ struct damos *s, unsigned long sz_filter_passed);
void *data;
/* private: internal use only */
/* informs if the kdamond finished handling of the walk request */
diff --git a/mm/damon/core.c b/mm/damon/core.c
index f7736df4f6c8..f566cdcbb434 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -1437,7 +1437,8 @@ static bool damos_filter_out(struct damon_ctx *ctx, struct damon_target *t,
* installed by damos_walk() and not yet uninstalled, invoke it.
*/
static void damos_walk_call_walk(struct damon_ctx *ctx, struct damon_target *t,
- struct damon_region *r, struct damos *s)
+ struct damon_region *r, struct damos *s,
+ unsigned long sz_filter_passed)
{
struct damos_walk_control *control;
@@ -1446,7 +1447,7 @@ static void damos_walk_call_walk(struct damon_ctx *ctx, struct damon_target *t,
mutex_unlock(&ctx->walk_control_lock);
if (!control)
return;
- control->walk_fn(control->data, ctx, t, r, s);
+ control->walk_fn(control->data, ctx, t, r, s, sz_filter_passed);
}
/*
@@ -1566,7 +1567,7 @@ static void damos_apply_scheme(struct damon_ctx *c, struct damon_target *t,
sz_applied = c->ops.apply_scheme(c, t, r, s,
&sz_ops_filter_passed);
}
- damos_walk_call_walk(c, t, r, s);
+ damos_walk_call_walk(c, t, r, s, sz_ops_filter_passed);
ktime_get_coarse_ts64(&end);
quota->total_charged_ns += timespec64_to_ns(&end) -
timespec64_to_ns(&begin);
diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c
index cf8fb5a963d6..224873ca8aa6 100644
--- a/mm/damon/sysfs.c
+++ b/mm/damon/sysfs.c
@@ -1454,7 +1454,7 @@ struct damon_sysfs_schemes_walk_data {
/* populate the region directory */
static void damon_sysfs_schemes_tried_regions_upd_one(void *data, struct damon_ctx *ctx,
struct damon_target *t, struct damon_region *r,
- struct damos *s)
+ struct damos *s, unsigned long sz_filter_passed)
{
struct damon_sysfs_schemes_walk_data *walk_data = data;
struct damon_sysfs_kdamond *sysfs_kdamond = walk_data->sysfs_kdamond;
--
2.39.5
