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From 9be28013e62ae471151fdc1f181e21cbd1e72dbd Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Fri, 10 Feb 2023 13:38:08 +0100
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Subject: [PATCH] core: when isolating to a unit, also keep units running that
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are triggered by units we keep running
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Inspired by: #26364
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(this might even "fix" #26364, but without debug logs it's hard to make
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such claims)
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Fixes: #23055
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(cherry picked from commit 32d6707dd1692d41e12f5469dfdcbc10f14d6619)
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Resolves: #1952378
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---
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src/core/transaction.c | 33 +++++++++++++++++++++++++++------
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1 file changed, 27 insertions(+), 6 deletions(-)
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diff --git a/src/core/transaction.c b/src/core/transaction.c
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index bafbb80b47..8ec853d58d 100644
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--- a/src/core/transaction.c
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+++ b/src/core/transaction.c
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@@ -1092,6 +1092,20 @@ fail:
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return r;
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}
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+static bool shall_stop_on_isolate(Transaction *tr, Unit *u) {
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+ assert(tr);
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+ assert(u);
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+
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+ if (u->ignore_on_isolate)
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+ return false;
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+
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+ /* Is there already something listed for this? */
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+ if (hashmap_get(tr->jobs, u))
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+ return false;
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+
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+ return true;
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+}
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+
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int transaction_add_isolate_jobs(Transaction *tr, Manager *m) {
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Unit *u;
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char *k;
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@@ -1101,20 +1115,27 @@ int transaction_add_isolate_jobs(Transaction *tr, Manager *m) {
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assert(m);
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HASHMAP_FOREACH_KEY(u, k, m->units) {
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+ Unit *o;
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- /* ignore aliases */
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+ /* Ignore aliases */
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if (u->id != k)
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continue;
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- if (u->ignore_on_isolate)
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+ /* No need to stop inactive units */
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+ if (UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(u)) && !u->job)
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continue;
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- /* No need to stop inactive jobs */
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- if (UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(u)) && !u->job)
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+ if (!shall_stop_on_isolate(tr, u))
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continue;
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- /* Is there already something listed for this? */
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- if (hashmap_get(tr->jobs, u))
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+ /* Keep units that are triggered by units we want to keep around. */
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+ bool keep = false;
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+ UNIT_FOREACH_DEPENDENCY(o, u, UNIT_ATOM_TRIGGERED_BY)
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+ if (!shall_stop_on_isolate(tr, o)) {
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+ keep = true;
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+ break;
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+ }
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+ if (keep)
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continue;
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r = transaction_add_job_and_dependencies(tr, JOB_STOP, u, tr->anchor_job, true, false, false, false, NULL);
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