idr_init_base(), implemented by commit
6ce711f27500 ("idr: Make 1-based
IDRs more efficient"), let us set an arbitrary base other than
idr_init(), which uses base 0.
Since, for this IDR, no ID < 1 is ever requested/allocated, using
idr_init_base(&idr, 1) avoids unnecessary tree walks.
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20220701190227.284783-1-dakr@redhat.com
void v3d_perfmon_open_file(struct v3d_file_priv *v3d_priv)
{
mutex_init(&v3d_priv->perfmon.lock);
- idr_init(&v3d_priv->perfmon.idr);
+ idr_init_base(&v3d_priv->perfmon.idr, 1);
}
static int v3d_perfmon_idr_del(int id, void *elem, void *data)