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AJvYcCXbkQGaN7tCyauhap9Jn6O4WURFvdk8jecbZeNv4jDNL6rCa5XiNRLG/G4GmFZYbzP86Inf8FT7JA==@kvack.org X-Gm-Message-State: AOJu0YxzXobneBJdmqJXVBkWVGDgeTUmD1i1YipNLnkjw35FEUZtwxfx 2m1lLieaHBZIpxNJBymQbzA/UJri4neKbrKuRnEDxbC9VFpGsSlwS9X1/S2qgFEHo41vSztwCf2 A8EBGjpU0teTC+/vTB/d40/oMunA= X-Gm-Gg: ASbGncsfyOi/a/zRGkfv+OqRn3SPHcrVJnZl/dmQaHhe5cJItCy57I0I4t5QF9Lh5cA sLW4IPJzZwRvCfAQ/DuiRfUHUgmkl3VoOv+oAk4memdaO/bUTy8kWE0Fv34J3OI/8iU9P+gopBJ vHdkgRrJQKs7d2yZ+MOkC8HHo382csjI0z3fPJXa9uKTxoCaE7Nw== X-Google-Smtp-Source: AGHT+IFKBvMTztEPKww1CwykRba3/iVcS0VlpY+XsSQTMkXG/HAsQTWVixHGqgEE1HjQcXFLHP2Xkj9j7Yf/zTMEYRU= X-Received: by 2002:a05:6000:18a5:b0:3a0:b63f:c88c with SMTP id ffacd0b85a97d-3a0b63fcbcdmr66701f8f.58.1746581342918; Tue, 06 May 2025 18:29:02 -0700 (PDT) MIME-Version: 1.0 References: <20250501032718.65476-1-alexei.starovoitov@gmail.com> <20250501032718.65476-4-alexei.starovoitov@gmail.com> <5e708851-6e8a-4ec8-81ee-55a55d1e3d2c@suse.cz> In-Reply-To: <5e708851-6e8a-4ec8-81ee-55a55d1e3d2c@suse.cz> From: Alexei Starovoitov Date: Tue, 6 May 2025 18:28:52 -0700 X-Gm-Features: ATxdqUHk0QN3Hrx5oH7Yo2q6CPmS5iaj94GdLq_KnqRr0DCmn7KuAlaTjx4ktj0 Message-ID: Subject: Re: [PATCH 3/6] locking/local_lock: Introduce local_lock_is_locked(). To: Vlastimil Babka Cc: bpf , linux-mm , Harry Yoo , Shakeel Butt , Michal Hocko , Sebastian Sewior , Andrii Nakryiko , Kumar Kartikeya Dwivedi , Andrew Morton , Peter Zijlstra , Steven Rostedt , Johannes Weiner , Matthew Wilcox Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 53F5440009 X-Stat-Signature: 4nzr4qud9it1m775mc7it9yqhpy3af6y X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1746581344-658427 X-HE-Meta: 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 /QwzKrTD oNErMtKkTFWSy1WpFAv7Nv1mN5V+/Gedu5ao1OoNy8Sgukc/+nTbZFZiIKSdP7t6/pJ5hmIBofciEtYC9aVuzAl3cRTcYBtF0Rg+WAsM2QMRPg0KMCZ4GlzHQx/jMMXLEtGozIj0SgLhF8Q6hr8QZrBudhElYvy5ADPyr0NQ1OQuqw4ztXeZE52Af+8lNwgPMCG59kKTk1BT/6Jo3edTC3oHr4n4yZxB1a1SM6UM/98HJ8ArdxKwaNFjXq+H0Y1npHjGSpx/OVcDJQcWQp8zgcXlucRaXkeo/WBiDPQ86TJWJ8sbn5AvWr8Bq+IbeS+O5OJZbuhB3HNHQwsPBI1Jd3Q13GfrRxMtJBWFWMAy2Ce5vx4/LByvhkHezXKbmBO8BiDyvJvu4kjr2h24sRyS4JujeYTvanxkUumXO2tnB5b4jm6giwcRvayALLKDyNlnF0Uyr X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, May 6, 2025 at 5:59=E2=80=AFAM Vlastimil Babka wro= te: > > On 5/1/25 05:27, Alexei Starovoitov wrote: > > From: Alexei Starovoitov > > > > Introduce local_lock_is_locked() that returns true when > > given local_lock is locked by current cpu (in !PREEMPT_RT) or > > by current task (in PREEMPT_RT). > > > > Signed-off-by: Alexei Starovoitov > > On !RT this only works for local_trylock_t, which is fine, but maybe make= it > part of the name then? local_trylock_is_locked()? Prior to _Generic() conversion it would make sense, but now it will be inconsistent. Type name is not part of the helper name. It's local_lock, local_unlock, local_lock_is_taken. local_trylock() might not even be used at all.