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[124.209.188.1]) by smtp.gmail.com with ESMTPSA id g5-20020a170902868500b001a0667822c8sm4041197plo.94.2023.04.08.01.22.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 08 Apr 2023 01:22:48 -0700 (PDT) Date: Sat, 8 Apr 2023 17:22:41 +0900 From: Sergey Senozhatsky To: Luis Chamberlain Cc: david@redhat.com, patches@lists.linux.dev, linux-modules@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, pmladek@suse.com, petr.pavlu@suse.com, prarit@redhat.com, torvalds@linux-foundation.org, gregkh@linuxfoundation.org, rafael@kernel.org, christophe.leroy@csgroup.eu, tglx@linutronix.de, peterz@infradead.org, song@kernel.org, rppt@kernel.org, dave@stgolabs.net, willy@infradead.org, vbabka@suse.cz, mhocko@suse.com, dave.hansen@linux.intel.com, colin.i.king@gmail.com, jim.cromie@gmail.com, catalin.marinas@arm.com, jbaron@akamai.com, rick.p.edgecombe@intel.com Subject: Re: [PATCH v2 1/2] Change DEFINE_SEMAPHORE() to take a number argument Message-ID: <20230408082241.GA12866@google.com> References: <20230405203505.1343562-1-mcgrof@kernel.org> <20230405203505.1343562-2-mcgrof@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230405203505.1343562-2-mcgrof@kernel.org> X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 4773240016 X-Rspam-User: X-Stat-Signature: x7knwqc4eog55kyip67bftb3bz4dz6cu X-HE-Tag: 1680942170-227702 X-HE-Meta: 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 zX6ynW2v 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 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: On (23/04/05 13:35), Luis Chamberlain wrote: > +++ b/kernel/printk/printk.c > @@ -89,7 +89,7 @@ static DEFINE_MUTEX(console_mutex); > * console_sem protects updates to console->seq and console_suspended, > * and also provides serialization for console printing. > */ > -static DEFINE_SEMAPHORE(console_sem); > +static DEFINE_SEMAPHORE(console_sem, 1); FWIW, Reviewed-by: Sergey Senozhatsky # printk