michaelh/zephyr
1
0
Fork 0
Code Releases Activity

kernel/timeout: Schedule zero-time timeouts

Browse source 
Fix an edge case that snuck in with the recent fix: if timeslicing is
enabled, the CPU's slice_ticks will be zero, and thus match a timeout
object's dticks value of zero, and thus get suppressed (because "we
already have a timeout scheduled for that") incorrectly.

Fixes #31789

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
This commit is contained in:
Andy Ross 2021-02-02 13:19:25 -08:00 • committed by Anas Nashif
commit 544475d8a7
1 changed files with 2 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

3
kernel/timeout.c
View file

@ -134,7 +134,8 @@ void z_add_timeout(struct _timeout *to, _timeout_func_t fn,
*/
int32_t next_time = next_timeout();
if (_current_cpu->slice_ticks != next_time) {
if (next_time == 0 ||
_current_cpu->slice_ticks != next_time) {
z_clock_set_timeout(next_time, false);
}
#else