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only run tasks as privileged if taskmgr is in privileged mode

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all zone loading tasks have the privileged flag, but we only want
them to run as privileged tasks when the server is being initialized;
if we privilege them the rest of the time, the server may hang for a
long time after a reload/reconfig. so now we call isc_taskmgr_setmode()
to turn privileged execution mode on or off in the task manager.

isc_task_privileged() returns true if the task's privilege flag is
set *and* the taskmgr is in privileged execution mode. this is used
to determine in which netmgr event queue the task should be run.
This commit is contained in:
Evan Hunt
2021-05-06 19:41:49 -07:00
parent 29a208aaf7
commit 5c08f97791
10 changed files with 123 additions and 32 deletions
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2
lib/isc/netmgr/netmgr.c
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@@ -757,7 +757,7 @@ isc_nm_task_enqueue(isc_nm_t *nm, isc_task_t *task, int threadid) {
worker = &nm->workers[tid];
if (isc_task_privilege(task)) {
if (isc_task_privileged(task)) {
event = (isc__netievent_t *)
isc__nm_get_netievent_privilegedtask(nm, task);
} else {