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bh=kNC+yhxdlGzjH/kuVa1H0qDLD4e1tNF8NnwPKMQwLmo=; b=TA69bXKcgHji4T28UMUBX1yWokylCPFVOtjoUjrd7MFIKkhSy2Z0Lfh4B60MWpMiYxef/Y nrzWFITJeRWAL+ToJ0dUqF8i8R9TvefAo0pcLN8+0mhiccpUIz7fH/8IrtAZ45VkytJEaf qdDAXhGB5YBCkM8D/jtCreKVEVLtGQI= X-MC-Unique: Co5VoTzzMeanaWxsz-VF-Q-1 From: Juan Quintela To: qemu-devel@nongnu.org Cc: Kevin Wolf , libvir-list@redhat.com, Stefan Hajnoczi , Fam Zheng , Hanna Reitz , Li Zhijian , Peter Xu , Leonardo Bras , Juan Quintela , Eric Blake , Markus Armbruster , Hailiang Zhang , qemu-block@nongnu.org, Fabiano Rosas Subject: [PULL 09/38] migration: Remove save_page_use_compression() Date: Tue, 31 Oct 2023 10:01:13 +0100 Message-ID: <20231031090142.13122-10-quintela@redhat.com> In-Reply-To: <20231031090142.13122-1-quintela@redhat.com> References: <20231031090142.13122-1-quintela@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.7 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=170.10.129.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.483, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1698743166558100002 Content-Type: text/plain; charset="utf-8" After previous patch, we disable the posiblity that we use compression together with xbzrle. So we can use directly migrate_compress(). Once there, now we don't need the rs parameter, so remove it. Reviewed-by: Fabiano Rosas Signed-off-by: Juan Quintela Message-ID: <20231019110724.15324-4-quintela@redhat.com> --- migration/ram.c | 34 +++++++--------------------------- 1 file changed, 7 insertions(+), 27 deletions(-) diff --git a/migration/ram.c b/migration/ram.c index e0ad732ee8..8246663f64 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -1291,8 +1291,6 @@ static int ram_save_multifd_page(QEMUFile *file, RAMB= lock *block, return 1; } =20 -static bool save_page_use_compression(RAMState *rs); - static int send_queued_data(CompressParam *param) { PageSearchStatus *pss =3D &ram_state->pss[RAM_CHANNEL_PRECOPY]; @@ -1329,9 +1327,9 @@ static int send_queued_data(CompressParam *param) return len; } =20 -static void ram_flush_compressed_data(RAMState *rs) +static void ram_flush_compressed_data(void) { - if (!save_page_use_compression(rs)) { + if (!migrate_compress()) { return; } =20 @@ -1393,7 +1391,7 @@ static int find_dirty_block(RAMState *rs, PageSearchS= tatus *pss) * Also If xbzrle is on, stop using the data compression at th= is * point. In theory, xbzrle can do better than compression. */ - ram_flush_compressed_data(rs); + ram_flush_compressed_data(); =20 /* Hit the end of the list */ pss->block =3D QLIST_FIRST_RCU(&ram_list.blocks); @@ -2042,24 +2040,6 @@ int ram_save_queue_pages(const char *rbname, ram_add= r_t start, ram_addr_t len) return 0; } =20 -static bool save_page_use_compression(RAMState *rs) -{ - if (!migrate_compress()) { - return false; - } - - /* - * If xbzrle is enabled (e.g., after first round of migration), stop - * using the data compression. In theory, xbzrle can do better than - * compression. - */ - if (rs->xbzrle_started) { - return false; - } - - return true; -} - /* * try to compress the page before posting it out, return true if the page * has been properly handled by compression, otherwise needs other @@ -2068,7 +2048,7 @@ static bool save_page_use_compression(RAMState *rs) static bool save_compress_page(RAMState *rs, PageSearchStatus *pss, ram_addr_t offset) { - if (!save_page_use_compression(rs)) { + if (!migrate_compress()) { return false; } =20 @@ -2083,7 +2063,7 @@ static bool save_compress_page(RAMState *rs, PageSear= chStatus *pss, * much CPU resource. */ if (pss->block !=3D pss->last_sent_block) { - ram_flush_compressed_data(rs); + ram_flush_compressed_data(); return false; } =20 @@ -3135,7 +3115,7 @@ static int ram_save_iterate(QEMUFile *f, void *opaque) * page is sent in one chunk. */ if (migrate_postcopy_ram()) { - ram_flush_compressed_data(rs); + ram_flush_compressed_data(); } =20 /* @@ -3236,7 +3216,7 @@ static int ram_save_complete(QEMUFile *f, void *opaqu= e) } qemu_mutex_unlock(&rs->bitmap_mutex); =20 - ram_flush_compressed_data(rs); + ram_flush_compressed_data(); =20 int ret =3D rdma_registration_stop(f, RAM_CONTROL_FINISH); if (ret < 0) { --=20 2.41.0