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[2003:dc:6f12:d500:230:64ff:fe74:809]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-615a8f00247sm10139093a12.9.2025.08.06.02.48.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Aug 2025 02:48:59 -0700 (PDT) From: Max Kellermann To: xiubli@redhat.com, idryomov@gmail.com, amarkuze@redhat.com, ceph-devel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Max Kellermann Subject: [PATCH 0/3] net/ceph/messenger: micro-optimizations for out_msg Date: Wed, 6 Aug 2025 11:48:52 +0200 Message-ID: <20250806094855.268799-1-max.kellermann@ionos.com> X-Mailer: git-send-email 2.47.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit These patches reduce reloads of con->out_msg by passing pointers that we already have in local variables (i.e. registers) as parameters. Access to con->out_queue is now gone completely from v1/v2 and only few references to con->out_msg remain. In the long run, I'd like to get rid of con->out_msg completely and instead send the whole con->out_queue in one kernel_sendmsg() call. This patch series helps with preparing that. Max Kellermann (3): net/ceph/messenger: ceph_con_get_out_msg() returns the message pointer net/ceph/messenger_v[12]: pass ceph_msg* instead of loading con->out_msg net/ceph/messenger: add empty check to ceph_con_get_out_msg() include/linux/ceph/messenger.h | 6 +- net/ceph/messenger.c | 12 +-- net/ceph/messenger_v1.c | 59 ++++++------ net/ceph/messenger_v2.c | 160 ++++++++++++++++----------------- 4 files changed, 119 insertions(+), 118 deletions(-) -- 2.47.2