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[213.225.13.130]) by smtp.gmail.com with ESMTPSA id f4-20020a5d50c4000000b0031fa870d4b3sm18931449wrt.60.2023.09.28.02.39.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Sep 2023 02:39:03 -0700 (PDT) From: =?UTF-8?q?Christoph=20B=C3=B6hmwalder?= To: Jens Axboe Cc: Philipp Reisner , Lars Ellenberg , drbd-dev@lists.linbit.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, Christoph Hellwig , Joel Colledge , =?UTF-8?q?Christoph=20B=C3=B6hmwalder?= Subject: [PATCH 4/5] drbd: Keep connection threads running while connection is up only Date: Thu, 28 Sep 2023 11:38:51 +0200 Message-ID: <20230928093852.676786-5-christoph.boehmwalder@linbit.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230928093852.676786-1-christoph.boehmwalder@linbit.com> References: <20230928093852.676786-1-christoph.boehmwalder@linbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Connection independent work has been moved from the connection "sender" to = the resource "worker", so there no longer is a need to keep the "sender" running when the connection is down. Originally-from: Andreas Gruenbacher Reviewed-by: Joel Colledge Signed-off-by: Christoph B=C3=B6hmwalder --- drivers/block/drbd/drbd_nl.c | 6 +----- drivers/block/drbd/drbd_state.c | 21 --------------------- drivers/block/drbd/drbd_state.h | 1 - 3 files changed, 1 insertion(+), 27 deletions(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 9d9ced46f968..85ab6f0f9d87 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -1361,8 +1361,7 @@ static void conn_reconfig_done(struct drbd_connection= *connection) { bool stop_threads; spin_lock_irq(&connection->resource->req_lock); - stop_threads =3D conn_all_vols_unconf(connection) && - connection->cstate =3D=3D C_STANDALONE; + stop_threads =3D connection->cstate =3D=3D C_STANDALONE; spin_unlock_irq(&connection->resource->req_lock); if (stop_threads) { /* ack_receiver thread and ack_sender workqueue are implicitly @@ -1749,7 +1748,6 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_= info *info) mutex_lock(&adm_ctx.resource->adm_mutex); peer_device =3D first_peer_device(device); connection =3D peer_device->connection; - conn_reconfig_start(connection); =20 /* if you want to reconfigure, please tear down first */ if (device->state.disk > D_DISKLESS) { @@ -2117,7 +2115,6 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_= info *info) =20 kobject_uevent(&disk_to_dev(device->vdisk)->kobj, KOBJ_CHANGE); put_ldev(device); - conn_reconfig_done(connection); mutex_unlock(&adm_ctx.resource->adm_mutex); drbd_adm_finish(&adm_ctx, info, retcode); return 0; @@ -2128,7 +2125,6 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_= info *info) drbd_force_state(device, NS(disk, D_DISKLESS)); drbd_md_sync(device); fail: - conn_reconfig_done(connection); if (nbc) { close_backing_dev(device, nbc->md_bdev, nbc->disk_conf->meta_dev_idx < 0 ? diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_stat= e.c index c623769abc1a..0a901e5aca0a 100644 --- a/drivers/block/drbd/drbd_state.c +++ b/drivers/block/drbd/drbd_state.c @@ -291,27 +291,6 @@ static inline bool is_susp(union drbd_state s) return s.susp || s.susp_nod || s.susp_fen; } =20 -bool conn_all_vols_unconf(struct drbd_connection *connection) -{ - struct drbd_peer_device *peer_device; - bool rv =3D true; - int vnr; - - rcu_read_lock(); - idr_for_each_entry(&connection->peer_devices, peer_device, vnr) { - struct drbd_device *device =3D peer_device->device; - if (device->state.disk !=3D D_DISKLESS || - device->state.conn !=3D C_STANDALONE || - device->state.role !=3D R_SECONDARY) { - rv =3D false; - break; - } - } - rcu_read_unlock(); - - return rv; -} - /* Unfortunately the states where not correctly ordered, when they where defined. therefore can not use max_t() here. */ static enum drbd_role max_role(enum drbd_role role1, enum drbd_role role2) diff --git a/drivers/block/drbd/drbd_state.h b/drivers/block/drbd/drbd_stat= e.h index cbaeb8018dbf..67371bd563e4 100644 --- a/drivers/block/drbd/drbd_state.h +++ b/drivers/block/drbd/drbd_state.h @@ -142,7 +142,6 @@ conn_request_state(struct drbd_connection *connection, = union drbd_state mask, un enum chg_state_flags flags); =20 extern void drbd_resume_al(struct drbd_device *device); -extern bool conn_all_vols_unconf(struct drbd_connection *connection); =20 /** * drbd_request_state() - Request a state change --=20 2.41.0