Gh0st
/
linux
mirror of https://github.com/torvalds/linux.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

samples/damon/wsse: use damon_call() repeat mode instead of damon_callback 

wsse uses damon_callback for periodically reading DAMON internal data. 
Use its alternative, damon_call() repeat mode.

Link: https://lkml.kernel.org/r/20250712195016.151108-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2025-07-12 12:50:09 -07:00 committed by Andrew Morton
parent a6c33f1054
commit cc9c1b8c20
1 changed files with 13 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
samples/damon/wsse.c
View File

@ -35,8 +35,9 @@ MODULE_PARM_DESC(enabled, "Enable or disable DAMON_SAMPLE_WSSE");
static struct damon_ctx *ctx; static struct damon_ctx *ctx;
static struct pid *target_pidp; static struct pid *target_pidp;
static int damon_sample_wsse_after_aggregate(struct damon_ctx *c) static int damon_sample_wsse_repeat_call_fn(void *data)
{ {
struct damon_ctx *c = data;
struct damon_target *t; struct damon_target *t;
damon_for_each_target(t, c) { damon_for_each_target(t, c) {
@ -52,9 +53,15 @@ static int damon_sample_wsse_after_aggregate(struct damon_ctx *c)
return 0; return 0;
} }
static struct damon_call_control repeat_call_control = {
.fn = damon_sample_wsse_repeat_call_fn,
.repeat = true,
};
static int damon_sample_wsse_start(void) static int damon_sample_wsse_start(void)
{ {
struct damon_target *target; struct damon_target *target;
int err;
pr_info("start\n"); pr_info("start\n");
@ -79,8 +86,11 @@ static int damon_sample_wsse_start(void)
} }
target->pid = target_pidp; target->pid = target_pidp;
ctx->callback.after_aggregation = damon_sample_wsse_after_aggregate; err = damon_start(&ctx, 1, true);
return damon_start(&ctx, 1, true); if (err)
return err;
repeat_call_control.data = ctx;
return damon_call(ctx, &repeat_call_control);
} }
static void damon_sample_wsse_stop(void) static void damon_sample_wsse_stop(void)