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Thu, 19 Oct 2023 11:07:32 +0000 (UTC) Received: from secure.mitica (unknown [10.39.194.127]) by smtp.corp.redhat.com (Postfix) with ESMTP id 281BA25C8; Thu, 19 Oct 2023 11:07:31 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Cc: Fabiano Rosas , Leonardo Bras , Peter Xu , Juan Quintela , Lukas Straub Subject: [PATCH v2 04/11] migration: Make compress_data_with_multithreads return bool Date: Thu, 19 Oct 2023 13:07:17 +0200 Message-ID: <20231019110724.15324-5-quintela@redhat.com> In-Reply-To: <20231019110724.15324-1-quintela@redhat.com> References: <20231019110724.15324-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.1 Received-SPF: pass client-ip=170.10.129.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Signed-off-by: Juan Quintela Reviewed-by: Lukas Straub Reviewed-by: Fabiano Rosas --- migration/ram-compress.h | 4 ++-- migration/ram-compress.c | 17 ++++++++++------- migration/ram.c | 3 +-- 3 files changed, 13 insertions(+), 11 deletions(-) diff --git a/migration/ram-compress.h b/migration/ram-compress.h index e55d3b50bd..b228640092 100644 --- a/migration/ram-compress.h +++ b/migration/ram-compress.h @@ -60,8 +60,8 @@ void compress_threads_save_cleanup(void); int compress_threads_save_setup(void); void flush_compressed_data(int (send_queued_data(CompressParam *))); -int compress_page_with_multi_thread(RAMBlock *block, ram_addr_t offset, - int (send_queued_data(CompressParam *))); +bool compress_page_with_multi_thread(RAMBlock *block, ram_addr_t offset, + int (send_queued_data(CompressParam *))); int wait_for_decompress_done(void); void compress_threads_load_cleanup(void); diff --git a/migration/ram-compress.c b/migration/ram-compress.c index d037dfe6cf..ef03d60a6d 100644 --- a/migration/ram-compress.c +++ b/migration/ram-compress.c @@ -260,10 +260,13 @@ static inline void set_compress_params(CompressParam *param, RAMBlock *block, param->trigger = true; } -int compress_page_with_multi_thread(RAMBlock *block, ram_addr_t offset, - int (send_queued_data(CompressParam *))) +/* + * Return true when it compress a page + */ +bool compress_page_with_multi_thread(RAMBlock *block, ram_addr_t offset, + int (send_queued_data(CompressParam *))) { - int thread_count, pages = -1; + int thread_count; bool wait = migrate_compress_wait_thread(); thread_count = migrate_compress_threads(); @@ -281,8 +284,8 @@ retry: qemu_cond_signal(¶m->cond); qemu_mutex_unlock(¶m->mutex); - pages = 1; - break; + qemu_mutex_unlock(&comp_done_lock); + return true; } } @@ -290,13 +293,13 @@ retry: * wait for the free thread if the user specifies 'compress-wait-thread', * otherwise we will post the page out in the main thread as normal page. */ - if (pages < 0 && wait) { + if (wait) { qemu_cond_wait(&comp_done_cond, &comp_done_lock); goto retry; } qemu_mutex_unlock(&comp_done_lock); - return pages; + return false; } /* return the size after decompression, or negative value on error */ diff --git a/migration/ram.c b/migration/ram.c index 42b704ac40..de7878c46e 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -2067,8 +2067,7 @@ static bool save_compress_page(RAMState *rs, PageSearchStatus *pss, return false; } - if (compress_page_with_multi_thread(pss->block, offset, - send_queued_data) > 0) { + if (compress_page_with_multi_thread(pss->block, offset, send_queued_data)) { return true; }