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From 1ce5187fb47bec57de4d8d3fd0068072228ec5e3 Mon Sep 17 00:00:00 2001
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From: Yu Watanabe <watanabe.yu+github@gmail.com>
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Date: Tue, 15 Jun 2021 02:13:59 +0900
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Subject: [PATCH] sd-event: always reshuffle time prioq on changing
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online/offline state
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Before 81107b8419c39f726fd2805517a5b9faab204e59, the compare functions
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for the latest or earliest prioq did not handle ratelimited flag.
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So, it was ok to not reshuffle the time prioq when changing the flag.
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But now, those two compare functions also compare the source is
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ratelimited or not. So, it is necessary to reshuffle the time prioq
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after changing the ratelimited flag.
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Hopefully fixes #19903.
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(cherry picked from commit 2115b9b6629eeba7bc9f42f757f38205febb1cb7)
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Related: #1968528
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---
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src/libsystemd/sd-event/sd-event.c | 33 ++++++++++--------------------
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1 file changed, 11 insertions(+), 22 deletions(-)
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diff --git a/src/libsystemd/sd-event/sd-event.c b/src/libsystemd/sd-event/sd-event.c
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index ae46392901..f78da00c3a 100644
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--- a/src/libsystemd/sd-event/sd-event.c
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+++ b/src/libsystemd/sd-event/sd-event.c
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@@ -2390,14 +2390,6 @@ static int event_source_offline(
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source_io_unregister(s);
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break;
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- case SOURCE_TIME_REALTIME:
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- case SOURCE_TIME_BOOTTIME:
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- case SOURCE_TIME_MONOTONIC:
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- case SOURCE_TIME_REALTIME_ALARM:
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- case SOURCE_TIME_BOOTTIME_ALARM:
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- event_source_time_prioq_reshuffle(s);
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- break;
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-
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case SOURCE_SIGNAL:
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event_gc_signal_data(s->event, &s->priority, s->signal.sig);
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break;
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@@ -2415,6 +2407,11 @@ static int event_source_offline(
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prioq_reshuffle(s->event->exit, s, &s->exit.prioq_index);
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break;
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+ case SOURCE_TIME_REALTIME:
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+ case SOURCE_TIME_BOOTTIME:
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+ case SOURCE_TIME_MONOTONIC:
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+ case SOURCE_TIME_REALTIME_ALARM:
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+ case SOURCE_TIME_BOOTTIME_ALARM:
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case SOURCE_DEFER:
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case SOURCE_POST:
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case SOURCE_INOTIFY:
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@@ -2424,6 +2421,9 @@ static int event_source_offline(
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assert_not_reached("Wut? I shouldn't exist.");
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}
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+ /* Always reshuffle time prioq, as the ratelimited flag may be changed. */
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+ event_source_time_prioq_reshuffle(s);
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+
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return 1;
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}
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@@ -2505,22 +2505,11 @@ static int event_source_online(
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s->ratelimited = ratelimited;
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/* Non-failing operations below */
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- switch (s->type) {
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- case SOURCE_TIME_REALTIME:
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- case SOURCE_TIME_BOOTTIME:
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- case SOURCE_TIME_MONOTONIC:
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- case SOURCE_TIME_REALTIME_ALARM:
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- case SOURCE_TIME_BOOTTIME_ALARM:
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- event_source_time_prioq_reshuffle(s);
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- break;
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-
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- case SOURCE_EXIT:
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+ if (s->type == SOURCE_EXIT)
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prioq_reshuffle(s->event->exit, s, &s->exit.prioq_index);
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- break;
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- default:
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- break;
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- }
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+ /* Always reshuffle time prioq, as the ratelimited flag may be changed. */
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+ event_source_time_prioq_reshuffle(s);
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return 1;
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}
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