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Thu, 23 Jul 2026 20:25:16 -0700 (PDT) Received: from google.com ([2a00:79e0:2031:6:c102:f12d:5168:6be5]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-84e175a29aesm3924592b3a.41.2026.07.23.20.25.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 Jul 2026 20:25:16 -0700 (PDT) Date: Fri, 24 Jul 2026 12:25:13 +0900 From: Sergey Senozhatsky To: Sebastian Andrzej Siewior Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, Minchan Kim , Sergey Senozhatsky , Jens Axboe Subject: Re: [PATCH 1/2] zram: Move lockmap to be per-zram instead per table Message-ID: References: <20260714141300.3945672-1-bigeasy@linutronix.de> <20260714141300.3945672-2-bigeasy@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260714141300.3945672-2-bigeasy@linutronix.de> On (26/07/14 16:12), Sebastian Andrzej Siewior wrote: > The zram object contains an array zram_table_entry. Each one has a > `lock' variable and each has a matching struct lockdep_map. This mimics > a struct mutex. > > It uses always the same key for all lockdep_map instances. This makes it > look like the same lock to lockdep. Therefore it could be reduced to > have one lockdep_map per struct zram. > > Use only one struct lockdep_map per struct zram. > > Signed-off-by: Sebastian Andrzej Siewior Reviewed-by: Sergey Senozhatsky Tested-by: Sergey Senozhatsky