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McKenney" , Neil Brown , linux-mm@kvack.org, LKML , Michal Hocko , "Paul E . McKenney" Subject: Re: [PATCH 2/2] mm: make it clear that gfp reclaim modifiers are valid only for sleepable allocations In-Reply-To: <20200403083543.11552-3-mhocko@kernel.org> Message-ID: References: <20200403083543.11552-1-mhocko@kernel.org> <20200403083543.11552-3-mhocko@kernel.org> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII 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 Fri, 3 Apr 2020, Michal Hocko wrote: > From: Michal Hocko > > While it might be really clear to MM developers that gfp reclaim > modifiers are applicable only to sleepable allocations (those with > __GFP_DIRECT_RECLAIM) it seems that actual users of the API are not > always sure. Make it explicit that they are not applicable for > GFP_NOWAIT or GFP_ATOMIC allocations which are the most commonly used > non-sleepable allocation masks. > > Acked-by: Paul E. McKenney > Signed-off-by: Michal Hocko Acked-by: David Rientjes