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bh=VOJnJ5TpOrfAW2cq46HgyNfR3TIE3721we51rCQ94GU=; b=JNUcRQSCq1eyKWhVXy3laoHzJwyS2Tiq+hXCzcEkRmRlKLMLwSDgXhl9sYXEUiW0tI4Fth g7P+ntx15Pu8bKr3pzNgrCy/DAq8W+PdW4KBBb6U6WcsyDuLtPSHyLcUkwPmjTC3U6Prok Jv7rJ9bR6LBeoRk3uaCU+uGEmrJ9xuk= X-MC-Unique: VsMpdrmRPd2hsav69Ai-vQ-1 From: Emanuele Giuseppe Esposito To: qemu-block@nongnu.org Subject: [RFC PATCH 3/3] block-copy: add CoMutex lock for BlockCopyCallState list Date: Tue, 20 Apr 2021 12:04:16 +0200 Message-Id: <20210420100416.30713-4-eesposit@redhat.com> In-Reply-To: <20210420100416.30713-1-eesposit@redhat.com> References: <20210420100416.30713-1-eesposit@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eesposit@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=eesposit@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Emanuele Giuseppe Esposito , Vladimir Sementsov-Ogievskiy , qemu-devel@nongnu.org, Max Reitz , Paolo Bonzini , John Snow Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Use the same tasks_lock, since the calls list is just used for debug purposes. Signed-off-by: Emanuele Giuseppe Esposito --- block/block-copy.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/block/block-copy.c b/block/block-copy.c index e785ac57e0..555f5fb747 100644 --- a/block/block-copy.c +++ b/block/block-copy.c @@ -310,10 +310,9 @@ BlockCopyState *block_copy_state_new(BdrvChild *source= , BdrvChild *target, s->copy_size =3D MAX(s->cluster_size, BLOCK_COPY_MAX_BUFFER); } =20 - QLIST_INIT(&s->tasks); qemu_co_mutex_init(&s->tasks_lock); + QLIST_INIT(&s->tasks); QLIST_INIT(&s->calls); - return s; } =20 @@ -712,7 +711,9 @@ static int coroutine_fn block_copy_common(BlockCopyCall= State *call_state) { int ret; =20 + qemu_co_mutex_lock(&call_state->s->tasks_lock); QLIST_INSERT_HEAD(&call_state->s->calls, call_state, list); + qemu_co_mutex_unlock(&call_state->s->tasks_lock); =20 do { ret =3D block_copy_dirty_clusters(call_state); @@ -739,7 +740,9 @@ static int coroutine_fn block_copy_common(BlockCopyCall= State *call_state) call_state->cb(call_state->cb_opaque); } =20 + qemu_co_mutex_lock(&call_state->s->tasks_lock); QLIST_REMOVE(call_state, list); + qemu_co_mutex_unlock(&call_state->s->tasks_lock); =20 return ret; } --=20 2.30.2