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McKenney" Cc: LKML , Frederic Weisbecker , rcu , Uladzislau Rezki , Neeraj Upadhyay , Boqun Feng , Joel Fernandes Subject: [PATCH 0/4] rcu/nocb: Shrinker related boring fixes Date: Wed, 22 Mar 2023 20:44:52 +0100 Message-Id: <20230322194456.2331527-1-frederic@kernel.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Spam-Status: No, score=-2.5 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1761098451067440655?= X-GMAIL-MSGID: =?utf-8?q?1761098451067440655?= Hi, Just a couple of boring fixes related to the shrinker. 1/4: is related to (de-)offloading so the issue only concerns rcutorture right now (which doesn't seem to test lazy so hardly possible to trigger). 2/4: fix ignored flush, making the shrinker more efficient but nothing critical. 3/4: optimization 4/4: optimization As such none of these patches carry a "Fixes:" because none fix an actual regression. Nothing worth backportng. Frederic Weisbecker (4): rcu/nocb: Protect lazy shrinker against concurrent (de-)offloading rcu/nocb: Fix shrinker race against callback enqueuer rcu/nocb: Recheck lazy callbacks under the ->nocb_lock from shrinker rcu/nocb: Make shrinker to iterate only NOCB CPUs kernel/rcu/tree_nocb.h | 43 +++++++++++++++++++++++++++++++++++++----- 1 file changed, 38 insertions(+), 5 deletions(-)