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dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=9vCXGmZv DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1771344918; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BjlbIXI20cfQeOQ/SCIWC1ottJ3vSZOOzDl3c4Yx3Vk=; b=JfJ4BPFkaVNDewhJh0VbGnxK3NuPIOxL8g0psOotd8UHHzQTVNAQq8HMrH/5y0+9NoNbE4 R3UXw2tNvO2MUtqeT+p55A5Z4IuBE3ckQnvQ70F7DbCoHp+SGJVbjtm1xhc11GKqsmB83u h+W+Vb7SB60Cl+CNJ4qtEuo2glgL/mU= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1771344918; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BjlbIXI20cfQeOQ/SCIWC1ottJ3vSZOOzDl3c4Yx3Vk=; b=9vCXGmZvisxYSmVFr7jfKLVeQirGEhMBDVxhs91kdhp8MJy7BTeYPYWGOXlrNweOV30RnJ JWf1Pp5Zm3TLIgAg== From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: Peter Xu , Lukas Straub Subject: [PULL 18/32] migration/colo: Send device states without copying buffer Date: Tue, 17 Feb 2026 13:14:29 -0300 Message-ID: <20260217161443.12738-19-farosas@suse.de> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260217161443.12738-1-farosas@suse.de> References: <20260217161443.12738-1-farosas@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Rspamd-Action: no action X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Spamd-Result: default: False [-3.01 / 50.00]; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a07:de40:b251:101:10:150:64:2; envelope-from=farosas@suse.de; helo=smtp-out2.suse.de 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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: qemu development 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 @suse.de) X-ZM-MESSAGEID: 1771345212661158500 Content-Type: text/plain; charset="utf-8" From: Peter Xu We can safely use the async version of put buffer here because the qemufile will be flushed right away. Suggested-by: Fabiano Rosas Signed-off-by: Peter Xu Reviewed-by: Fabiano Rosas Tested-by: Lukas Straub Link: https://lore.kernel.org/qemu-devel/20260127185254.3954634-13-peterx@r= edhat.com Signed-off-by: Fabiano Rosas --- migration/colo.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/migration/colo.c b/migration/colo.c index 1b94e0f0ee..0b1a58cd8f 100644 --- a/migration/colo.c +++ b/migration/colo.c @@ -486,7 +486,8 @@ static int colo_do_checkpoint_transaction(MigrationStat= e *s, goto out; } =20 - qemu_put_buffer(s->to_dst_file, bioc->data, bioc->usage); + /* We can use async put because flush happens right away */ + qemu_put_buffer_async(s->to_dst_file, bioc->data, bioc->usage, false); ret =3D qemu_fflush(s->to_dst_file); if (ret < 0) { goto out; --=20 2.51.0