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bh=jaf8TVcaCoY+gXRI/VJ8dcjLvYvyn0Wf6eDT01i5qTU=; b=gV/Q8PhBJfKEwrm7QUc3Nj/RkV SdSL5cwKeC0Plg0b6mwejcTDoMjZarfDiNAgQplXpqYWFesGNsx9Ly1iS6lsQsOGJ+pmFjNCyYBZf iTxAWnMJJISxhizo+817ILIZ4QnD9GsCTv7+ptWdl3GhN2mkaCUshKhLgpYXIWL6hRXulCkBhdaqR xAasSAx0b9s9kawlt7zz92GU+EBueFmLjNPSh92Ny2DYBUxQ8C626EYy8rD6dI2n+LAlqcCd2bwnj qtaTHNNsdcvpr+FmnPzCRFCLdstHHWMLyCna3D7TkKLo6UwdqvD2aTrs6jMv7YKU2iQnB2ZHFHxEy KNQzlAXw==; Received: from mcgrof by bombadil.infradead.org with local (Exim 4.96 #2 (Red Hat Linux)) id 1pmRjM-001jmc-1R; Wed, 12 Apr 2023 04:05:12 +0000 Date: Tue, 11 Apr 2023 21:05:12 -0700 From: Luis Chamberlain To: Matthew Wilcox 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, 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: 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: X-Stat-Signature: wkqhjb4c4znk71bafuoxw95cibh55t1h X-Rspam-User: X-Rspamd-Queue-Id: A276280025 X-Rspamd-Server: rspam06 X-HE-Tag: 1681272324-932852 X-HE-Meta: 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 zNg7QeF6 Jf1eRap1pazm3kr5s2N3ZcaPwaIl0rvlZzjHgY9zZrmTHgiwqH960k6IJBtKWrMZZv6RDqtRpt+vhWaCwhjNnGNE870m7XHTETQWo9DrEblkf3yk6iEYzACEGjG1UdkMR/AxTKi8KYPOTuUvdZ/ETEVhQYlwO0xPzilIHARwoQ9pZi3kK/WiXeB9p7pnk0vz21Zy6TdyOzX8yTbgIBYihiKeFpAj/hqGwsCVEk4fTZdvNSdFkOgKVDiCl7wUPwATV8DGglB/sIojrB50sEoFdBMWsSF4ciNnTFcW9yMCFH4GBj74cgUXw1h/1sINaQ9KP22OegrPAmA3roAF1sP5HELC1Cu5OGHIjp+aHGq0i2DWcRSeW2nf6NDJs1u/AB+K78VCGd7HuHbhtUqPHmguTqJtOzS0AMDYUSh2c1RvmpHmfyfLs8MzxUo1+x7WjYr0qhVEX X-Bogosity: Ham, tests=bogofilter, spamicity=0.000025, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Apr 07, 2023 at 09:36:30PM +0100, Matthew Wilcox wrote: > Or this: > > /* > * Unlike mutexes, binary semaphores do not have an owner, so up() can > * be called in a different thread from the one which called down(). > * It is also safe to call down_trylock() and up() from interrupt > * context. > */ I went with that. Thanks for helping me paint this shed! Luis