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From 4d0b11088c4a3a630d71acf902064d1ed10412e8 Mon Sep 17 00:00:00 2001
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From: Atin Mukherjee <amukherj@redhat.com>
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Date: Tue, 25 Jun 2019 11:11:10 +0530
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Subject: [PATCH 204/221] glusterd: conditionally clear txn_opinfo in stage op
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...otherwise this leads to a crash when volume status is run on a
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heterogeneous mode.
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> upstream patch : https://review.gluster.org/#/c/glusterfs/+/22939/
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>Fixes: bz#1723658
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>Change-Id: I0d39f412b2e5e9d3ef0a3462b90b38bb5364b09d
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>Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
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BUG: 1722131
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Change-Id: I0d39f412b2e5e9d3ef0a3462b90b38bb5364b09d
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Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/174566
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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---
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xlators/mgmt/glusterd/src/glusterd-op-sm.c | 12 ++++++++++--
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1 file changed, 10 insertions(+), 2 deletions(-)
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diff --git a/xlators/mgmt/glusterd/src/glusterd-op-sm.c b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
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index d0c1a2c..9ea695e 100644
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--- a/xlators/mgmt/glusterd/src/glusterd-op-sm.c
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+++ b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
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@@ -5714,9 +5714,14 @@ glusterd_op_ac_stage_op(glusterd_op_sm_event_t *event, void *ctx)
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glusterd_op_info_t txn_op_info = {
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{0},
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};
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+ glusterd_conf_t *priv = NULL;
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this = THIS;
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GF_ASSERT(this);
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+
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+ priv = this->private;
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+ GF_ASSERT(priv);
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+
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GF_ASSERT(ctx);
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req_ctx = ctx;
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@@ -5768,9 +5773,12 @@ out:
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gf_msg_debug(this->name, 0, "Returning with %d", ret);
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/* for no volname transactions, the txn_opinfo needs to be cleaned up
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- * as there's no unlock event triggered
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+ * as there's no unlock event triggered. However if the originator node of
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+ * this transaction is still running with a version lower than 60000,
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+ * txn_opinfo can't be cleared as that'll lead to a race of referring op_ctx
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+ * after it's being freed.
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*/
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- if (txn_op_info.skip_locking)
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+ if (txn_op_info.skip_locking && priv->op_version >= GD_OP_VERSION_6_0)
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ret = glusterd_clear_txn_opinfo(txn_id);
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if (rsp_dict)
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--
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1.8.3.1
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