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From b0c226e9fd3e6bfa5388832cc2745d9ec935f3ec Mon Sep 17 00:00:00 2001
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From: Michal Sekletar <msekleta@redhat.com>
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Date: Mon, 4 Oct 2021 20:31:49 +0200
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Subject: [PATCH] mount: retrigger run queue after ratelimit expired to run
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delayed mount start jobs
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Fixes #20329
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(cherry picked from commit edc027b4f1cfaa49e8ecdde763eb8c623402d464)
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Related: #2036608
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---
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src/core/mount.c | 21 +++++++++++++++++++++
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1 file changed, 21 insertions(+)
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diff --git a/src/core/mount.c b/src/core/mount.c
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index ab09e6fbb0..bdba9e6884 100644
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--- a/src/core/mount.c
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+++ b/src/core/mount.c
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@@ -1710,6 +1710,21 @@ static bool mount_is_mounted(Mount *m) {
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return UNIT(m)->perpetual || m->is_mounted;
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}
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+static int mount_on_ratelimit_expire(sd_event_source *s, void *userdata) {
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+ Manager *m = userdata;
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+ int r;
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+
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+ assert(m);
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+
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+ /* By entering ratelimited state we made all mount start jobs not runnable, now rate limit is over so let's
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+ * make sure we dispatch them in the next iteration. */
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+ r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_ONESHOT);
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+ if (r < 0)
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+ log_debug_errno(r, "Failed to enable run queue event source, ignoring: %m");
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+
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+ return 0;
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+}
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+
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static void mount_enumerate(Manager *m) {
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int r;
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@@ -1763,6 +1778,12 @@ static void mount_enumerate(Manager *m) {
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goto fail;
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}
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+ r = sd_event_source_set_ratelimit_expire_callback(m->mount_event_source, mount_on_ratelimit_expire);
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+ if (r < 0) {
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+ log_error_errno(r, "Failed to enable rate limit for mount events: %m");
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+ goto fail;
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+ }
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+
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(void) sd_event_source_set_description(m->mount_event_source, "mount-monitor-dispatch");
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}
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