diff options
| author | SeongJae Park <sj@kernel.org> | 2025-09-15 20:35:09 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-09-21 14:22:38 -0700 |
| commit | 1f70367f7b6720ca0d3280b202317aa9d0167066 (patch) | |
| tree | a2614d74627d204370d657ba074d339e9a616533 /samples | |
| parent | c4a8e662c839ac0003e4781aa324cb2d68ed9cb1 (diff) | |
samples/damon/wsse: use damon_initialized()
damon_sample_wsse is assuming DAMON is ready to use in module_init time,
and uses its own hack to see if it is the time. Use damon_initialized(),
which is a way for seeing if DAMON is ready to be used that is more
reliable and better to maintain instead of the hack.
Link: https://lkml.kernel.org/r/20250916033511.116366-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/damon/wsse.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/samples/damon/wsse.c b/samples/damon/wsse.c index 21eaf15f987d..799ad4443943 100644 --- a/samples/damon/wsse.c +++ b/samples/damon/wsse.c @@ -102,8 +102,6 @@ static void damon_sample_wsse_stop(void) } } -static bool init_called; - static int damon_sample_wsse_enable_store( const char *val, const struct kernel_param *kp) { @@ -117,10 +115,10 @@ static int damon_sample_wsse_enable_store( if (enabled == is_enabled) return 0; - if (enabled) { - if (!init_called) - return 0; + if (!damon_initialized()) + return 0; + if (enabled) { err = damon_sample_wsse_start(); if (err) enabled = false; @@ -134,7 +132,12 @@ static int __init damon_sample_wsse_init(void) { int err = 0; - init_called = true; + if (!damon_initialized()) { + err = -ENOMEM; + if (enabled) + enabled = false; + } + if (enabled) { err = damon_sample_wsse_start(); if (err) |