diff options
| author | SeongJae Park <sj@kernel.org> | 2025-09-15 20:35:10 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-09-21 14:22:38 -0700 |
| commit | 20c0ed5035fa81872a97c46d2d5beee5aab09800 (patch) | |
| tree | cb3f78d7dbdea32cae079e50677b0641efb217f9 /samples | |
| parent | 1f70367f7b6720ca0d3280b202317aa9d0167066 (diff) | |
samples/damon/prcl: use damon_initialized()
damon_sample_prcl 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/20250916033511.116366-7-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/prcl.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/samples/damon/prcl.c b/samples/damon/prcl.c index 0226652f94d5..b7c50f2656ce 100644 --- a/samples/damon/prcl.c +++ b/samples/damon/prcl.c @@ -122,8 +122,6 @@ static void damon_sample_prcl_stop(void) } } -static bool init_called; - static int damon_sample_prcl_enable_store( const char *val, const struct kernel_param *kp) { @@ -137,7 +135,7 @@ static int damon_sample_prcl_enable_store( if (enabled == is_enabled) return 0; - if (!init_called) + if (!damon_initialized()) return 0; if (enabled) { @@ -154,7 +152,12 @@ static int __init damon_sample_prcl_init(void) { int err = 0; - init_called = true; + if (!damon_initialized()) { + if (enabled) + enabled = false; + return -ENOMEM; + } + if (enabled) { err = damon_sample_prcl_start(); if (err) |