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From e386fb4f4baf834e6a8fc25cc2fbbb17eb0a7a56 Mon Sep 17 00:00:00 2001
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From: Mohammed Rafi KC <rkavunga@redhat.com>
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Date: Thu, 20 Jun 2019 20:43:24 +0530
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Subject: [PATCH 202/221] shd/mux: Fix race between mux_proc unlink and stop
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There is a small race window, where we have a shd proc
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without having a connection. That is when we stopped the
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last shd running on a process. The list was removed
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outside of a lock just after stopping the process.
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So there is a window where we stopped the process, but
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the shd proc list contains the entry.
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Backport of: https://review.gluster.org/22909
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>Change-Id: Id82a82509e5cd72acac24e8b7b87197626525441
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>fixes: bz#1722541
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>Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
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Change-Id: I794131ede23f32fcfa5f71181149d8c1e7e439b8
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BUG: 1721802
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Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/174541
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
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---
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xlators/mgmt/glusterd/src/glusterd-shd-svc.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/xlators/mgmt/glusterd/src/glusterd-shd-svc.c b/xlators/mgmt/glusterd/src/glusterd-shd-svc.c
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index d81d760..dbe2560 100644
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--- a/xlators/mgmt/glusterd/src/glusterd-shd-svc.c
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+++ b/xlators/mgmt/glusterd/src/glusterd-shd-svc.c
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@@ -694,6 +694,9 @@ glusterd_shdsvc_stop(glusterd_svc_t *svc, int sig)
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gf_is_service_running(svc->proc.pidfile, &pid;;
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cds_list_del_init(&svc->mux_svc);
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empty = cds_list_empty(&svc_proc->svcs);
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+ if (empty) {
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+ cds_list_del_init(&svc_proc->svc_proc_list);
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+ }
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}
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pthread_mutex_unlock(&conf->attach_lock);
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if (empty) {
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--
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1.8.3.1
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