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From 17e56e6699ac4521da7144107d9f496437a76e6a Mon Sep 17 00:00:00 2001
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From: Atin Mukherjee <amukherj@redhat.com>
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Date: Thu, 13 Apr 2017 13:20:18 +0530
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Subject: [PATCH 380/393] glusterd: fix glusterd_wait_for_blockers to go in
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 infinite loop
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In send_attach_req () conf->blockers is bumped up before
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rpc_clnt_submit however the same is bumped down twice, one from the
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callback and one from the negative ret handling which can very well be a
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possible case if the rpc submit fails.
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>Reviewed-on: https://review.gluster.org/17055
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>Smoke: Gluster Build System <jenkins@build.gluster.org>
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>NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
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>CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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>Reviewed-by: Jeff Darcy <jeff@pl.atyp.us>
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Change-Id: Icb820694034cbfcb3d427911e192ac4a0f4540f6
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BUG: 1441946
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Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/103636
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---
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 xlators/mgmt/glusterd/src/glusterd-utils.c | 10 ++++------
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 1 file changed, 4 insertions(+), 6 deletions(-)
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diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
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index 2adfb47..53ade93 100644
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--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
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+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
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@@ -4978,9 +4978,6 @@ send_attach_req (xlator_t *this, struct rpc_clnt *rpc, char *path, int op)
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         ret = rpc_clnt_submit (rpc, &gd_brick_prog, op,
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                                my_callback, &iov, 1, NULL, 0, iobref,
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                                frame, NULL, 0, NULL, 0, NULL);
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-        if (ret) {
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-                --(conf->blockers);
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-        }
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         return ret;
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 free_iobref:
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@@ -5419,13 +5416,12 @@ glusterd_restart_bricks (glusterd_conf_t *conf)
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         gf_boolean_t          node_quorum    = _gf_false;
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         this = THIS;
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-        GF_VALIDATE_OR_GOTO ("glusterd", this, out);
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+        GF_VALIDATE_OR_GOTO ("glusterd", this, return_block);
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         conf = this->private;
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-        GF_VALIDATE_OR_GOTO (this->name, conf, out);
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+        GF_VALIDATE_OR_GOTO (this->name, conf, return_block);
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         ++(conf->blockers);
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-
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         ret = glusterd_get_quorum_cluster_counts (this, &active_count,
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                                                   &quorum_count);
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         if (ret)
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@@ -5507,6 +5503,8 @@ glusterd_restart_bricks (glusterd_conf_t *conf)
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 out:
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         --(conf->blockers);
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         conf->restart_done = _gf_true;
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+
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+return_block:
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         return ret;
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 }
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-- 
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1.8.3.1
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