You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
54 lines
1.7 KiB
54 lines
1.7 KiB
9 months ago
|
From cd7788a857a6099206c4063e3ef69cb9e4aebcbc Mon Sep 17 00:00:00 2001
|
||
|
|
From: Stefan Hajnoczi <stefanha@redhat.com>
|
||
|
|
Date: Thu, 21 Dec 2023 14:24:50 -0500
|
||
|
|
Subject: [PATCH 070/101] nbd/server: avoid per-NBDRequest nbd_client_get/put()
|
||
|
|
|
||
|
|
RH-Author: Kevin Wolf <kwolf@redhat.com>
|
||
|
|
RH-MergeRequest: 214: Remove AioContext lock
|
||
|
|
RH-Jira: RHEL-15965
|
||
|
|
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
|
||
|
|
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
|
||
|
|
RH-Commit: [1/26] 5acb090ac4adf4260cd9e9c5605a27012b2a33aa (kmwolf/centos-qemu-kvm)
|
||
|
|
|
||
|
|
nbd_trip() processes a single NBD request from start to finish and holds
|
||
|
|
an NBDClient reference throughout. NBDRequest does not outlive the scope
|
||
|
|
of nbd_trip(). Therefore it is unnecessary to ref/unref NBDClient for
|
||
|
|
each NBDRequest.
|
||
|
|
|
||
|
|
Removing these nbd_client_get()/nbd_client_put() calls will make
|
||
|
|
thread-safety easier in the commits that follow.
|
||
|
|
|
||
|
|
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
|
||
|
|
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
|
||
|
|
Message-ID: <20231221192452.1785567-5-stefanha@redhat.com>
|
||
|
|
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
|
||
|
|
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
|
||
|
|
---
|
||
|
|
nbd/server.c | 3 ---
|
||
|
|
1 file changed, 3 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/nbd/server.c b/nbd/server.c
|
||
|
|
index 895cf0a752..0b09ccc8dc 100644
|
||
|
|
--- a/nbd/server.c
|
||
|
|
+++ b/nbd/server.c
|
||
|
|
@@ -1557,7 +1557,6 @@ static NBDRequestData *nbd_request_get(NBDClient *client)
|
||
|
|
client->nb_requests++;
|
||
|
|
|
||
|
|
req = g_new0(NBDRequestData, 1);
|
||
|
|
- nbd_client_get(client);
|
||
|
|
req->client = client;
|
||
|
|
return req;
|
||
|
|
}
|
||
|
|
@@ -1578,8 +1577,6 @@ static void nbd_request_put(NBDRequestData *req)
|
||
|
|
}
|
||
|
|
|
||
|
|
nbd_client_receive_next_request(client);
|
||
|
|
-
|
||
|
|
- nbd_client_put(client);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void blk_aio_attached(AioContext *ctx, void *opaque)
|
||
|
|
--
|
||
|
|
2.39.3
|
||
|
|
|