From patchwork Mon Jul 27 20:55:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Blake X-Patchwork-Id: 277372 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 61461C433EB for ; Mon, 27 Jul 2020 21:04:54 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2DA4120792 for ; Mon, 27 Jul 2020 21:04:54 +0000 (UTC) Authentication-Results: mail.kernel.org; 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Mon, 27 Jul 2020 20:56:15 +0000 (UTC) Received: from blue.redhat.com (ovpn-118-248.rdu2.redhat.com [10.10.118.248]) by smtp.corp.redhat.com (Postfix) with ESMTP id E5AE719724; Mon, 27 Jul 2020 20:56:11 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Subject: [PULL 13/24] migration/block-dirty-bitmap: rename finish_lock to just lock Date: Mon, 27 Jul 2020 15:55:32 -0500 Message-Id: <20200727205543.206624-14-eblake@redhat.com> In-Reply-To: <20200727205543.206624-1-eblake@redhat.com> References: <20200727205543.206624-1-eblake@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.120; envelope-from=eblake@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/27 15:02:33 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: Fam Zheng , Vladimir Sementsov-Ogievskiy , "open list:Dirty Bitmaps" , Juan Quintela , "Dr. David Alan Gilbert" , Stefan Hajnoczi , Andrey Shinkevich , John Snow Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Vladimir Sementsov-Ogievskiy finish_lock is bad name, as lock used not only on process end. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Andrey Shinkevich Message-Id: <20200727194236.19551-13-vsementsov@virtuozzo.com> Signed-off-by: Eric Blake --- migration/block-dirty-bitmap.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c index 9b39e7aa2b4f..9194807b54f1 100644 --- a/migration/block-dirty-bitmap.c +++ b/migration/block-dirty-bitmap.c @@ -143,7 +143,7 @@ typedef struct DBMLoadState { BdrvDirtyBitmap *bitmap; GSList *enabled_bitmaps; - QemuMutex finish_lock; + QemuMutex lock; /* protect enabled_bitmaps */ } DBMLoadState; typedef struct DBMState { @@ -575,7 +575,7 @@ void dirty_bitmap_mig_before_vm_start(void) DBMLoadState *s = &dbm_state.load; GSList *item; - qemu_mutex_lock(&s->finish_lock); + qemu_mutex_lock(&s->lock); for (item = s->enabled_bitmaps; item; item = g_slist_next(item)) { LoadBitmapState *b = item->data; @@ -592,7 +592,7 @@ void dirty_bitmap_mig_before_vm_start(void) g_slist_free(s->enabled_bitmaps); s->enabled_bitmaps = NULL; - qemu_mutex_unlock(&s->finish_lock); + qemu_mutex_unlock(&s->lock); } static void dirty_bitmap_load_complete(QEMUFile *f, DBMLoadState *s) @@ -601,7 +601,7 @@ static void dirty_bitmap_load_complete(QEMUFile *f, DBMLoadState *s) trace_dirty_bitmap_load_complete(); bdrv_dirty_bitmap_deserialize_finish(s->bitmap); - qemu_mutex_lock(&s->finish_lock); + qemu_mutex_lock(&s->lock); for (item = s->enabled_bitmaps; item; item = g_slist_next(item)) { LoadBitmapState *b = item->data; @@ -633,7 +633,7 @@ static void dirty_bitmap_load_complete(QEMUFile *f, DBMLoadState *s) bdrv_dirty_bitmap_unlock(s->bitmap); } - qemu_mutex_unlock(&s->finish_lock); + qemu_mutex_unlock(&s->lock); } static int dirty_bitmap_load_bits(QEMUFile *f, DBMLoadState *s) @@ -815,7 +815,7 @@ static SaveVMHandlers savevm_dirty_bitmap_handlers = { void dirty_bitmap_mig_init(void) { QSIMPLEQ_INIT(&dbm_state.save.dbms_list); - qemu_mutex_init(&dbm_state.load.finish_lock); + qemu_mutex_init(&dbm_state.load.lock); register_savevm_live("dirty-bitmap", 0, 1, &savevm_dirty_bitmap_handlers,