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BUG/MINOR: activity: fix reporting of task latency

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In 2.4, "show tasks" was introduced by commit 7eff06e162 ("MINOR:
activity: add a new "show tasks" command to list currently active tasks")
to expose some info about running tasks. The latency is not correct
because it's a u32 subtracted from a u64. It ought to have been casted
to u32 for the operation, which is what this patch does.

This can be backported to 2.4.
This commit is contained in:
Willy Tarreau 2025-09-10 10:36:27 +02:00
parent bdff394195
commit 17d3392348
1 changed files with 4 additions and 4 deletions
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8
src/activity.c
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@ -1327,7 +1327,7 @@ static int cli_io_handler_show_tasks(struct appctx *appctx)
t = eb32_entry(rqnode, struct task, rq);
entry = sched_activity_entry(tmp_activity, t->process, NULL);
if (t->wake_date) {
lat = now_ns - t->wake_date;
lat = (uint32_t)now_ns - t->wake_date;
if ((int64_t)lat > 0)
entry->lat_time += lat;
}
@ -1344,7 +1344,7 @@ static int cli_io_handler_show_tasks(struct appctx *appctx)
t = eb32_entry(rqnode, struct task, rq);
entry = sched_activity_entry(tmp_activity, t->process, NULL);
if (t->wake_date) {
lat = now_ns - t->wake_date;
lat = (uint32_t)now_ns - t->wake_date;
if ((int64_t)lat > 0)
entry->lat_time += lat;
}
@ -1357,7 +1357,7 @@ static int cli_io_handler_show_tasks(struct appctx *appctx)
t = (const struct task *)tl;
entry = sched_activity_entry(tmp_activity, t->process, NULL);
if (!TASK_IS_TASKLET(t) && t->wake_date) {
lat = now_ns - t->wake_date;
lat = (uint32_t)now_ns - t->wake_date;
if ((int64_t)lat > 0)
entry->lat_time += lat;
}
@ -1370,7 +1370,7 @@ static int cli_io_handler_show_tasks(struct appctx *appctx)
t = (const struct task *)tl;
entry = sched_activity_entry(tmp_activity, t->process, NULL);
if (!TASK_IS_TASKLET(t) && t->wake_date) {
lat = now_ns - t->wake_date;
lat = (uint32_t)now_ns - t->wake_date;
if ((int64_t)lat > 0)
entry->lat_time += lat;
}