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From 73cef29731c0d7b8b4f3b880c032dc232b8fcc31 Mon Sep 17 00:00:00 2001
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From: Mohit Agrawal <moagrawa@redhat.com>
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Date: Thu, 4 Jun 2020 16:06:44 +0530
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Subject: [PATCH 397/449] mgmt/brick-mux: Avoid sending two response when
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attach is failed.
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We were sending two response back to glusterd when an attach is
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failed. One from the handler function glusterfs_handle_attach and
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another from rpcsvc_check_and_reply_error. It was causing problems
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like ref leaks, transport disconnect etc.
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> Change-Id: I3bb5b59959530760b568d52becb519499b3dcd2b
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> updates: bz#1785143
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> Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
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> (Cherry pick from commit 42f484dcecd9942611396d9bd2ad3a39019b0e1f)
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> (Reviewed on upstream link https://review.gluster.org/#/c/glusterfs/+/23906/)
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Change-Id: I3bb5b59959530760b568d52becb519499b3dcd2b
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BUG: 1776901
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Signed-off-by: Mohit Agrawal <moagrawa@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/202346
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Reviewed-by: Sanju Rakonde <srakonde@redhat.com>
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
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---
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glusterfsd/src/glusterfsd-mgmt.c | 10 +++++++++-
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1 file changed, 9 insertions(+), 1 deletion(-)
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diff --git a/glusterfsd/src/glusterfsd-mgmt.c b/glusterfsd/src/glusterfsd-mgmt.c
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index 15acc10..61d1b21 100644
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--- a/glusterfsd/src/glusterfsd-mgmt.c
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+++ b/glusterfsd/src/glusterfsd-mgmt.c
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@@ -954,7 +954,15 @@ glusterfs_handle_attach(rpcsvc_request_t *req)
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ret = -1;
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}
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- glusterfs_translator_info_response_send(req, ret, NULL, NULL);
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+ ret = glusterfs_translator_info_response_send(req, ret, NULL, NULL);
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+ if (ret) {
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+ /* Response sent back to glusterd, req is already destroyed. So
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+ * resetting the ret to 0. Otherwise another response will be
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+ * send from rpcsvc_check_and_reply_error. Which will lead to
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+ * double resource leak.
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+ */
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+ ret = 0;
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+ }
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out:
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UNLOCK(&ctx->volfile_lock);
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--
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1.8.3.1
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