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b=d0EiuuaBz/OpXfei/3z+GvVGzAHjTn8GeJe/V4wbTymI8kxgG7CQW5bgzOyeu9NfO slXNTBw5yovdT8DtaQVJBTZ8wu4Q2bTP2lzDfWD73Lqxm2fZZ4bIcawdaCrJvTd13R FHUubmE24/9h/onBi6fJCZT3EJWbxorAEYAbV7eH3Ooc0saYuzGjhEa5APcFdFqDS3 dg3Qwsu9vMDW9yli1a+tHxPFZyOZUYGdhMqqzhIO/4xdvGAk0SRS3VztlZ1MHkcA/G 7yg1s/tm0TZItoH1Pu32NXu4EMgTIq/7FulmI9gx5reEeaKH8za0LIHLZVg2bLx2u0 eIxNMXBYDlsQQ== From: SeongJae Park To: "Vishal Moola (Oracle)" Cc: SeongJae Park , linux-kernel@vger.kernel.org, linux-mm@kvack.org, bpf@vger.kernel.org, Uladzislau Rezki , Christoph Hellwig , Andrew Morton Subject: Re: [PATCH v3 0/4] make vmalloc gfp flags usage more apparent Date: Wed, 19 Nov 2025 17:03:02 -0800 Message-ID: <20251120010303.74537-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251117173530.43293-1-vishal.moola@gmail.com> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 177E318000F X-Stat-Signature: jw8j4c9hs6xw4tz7x9toapcokwmwkmgx X-Rspam-User: X-HE-Tag: 1763600586-660437 X-HE-Meta: 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 mmCGf3ZK dplHOI3BbfnO45Tkbyi00nrj056zZ+KmjiF6RU+dkkqoqgerkz1YE6vMS4Z7LGLcQKd5PZyKp0UtdnYal2nth2HdtlKFzZIoRwPe/MB4+REdxtxudEAE/8+1f6zNhuRf2FAasscK5FoOvwbMfI+N8Q4sW2nqviE0acTXLCHyaeehvb3sffpZMvUMJhYJiiEk5V+fz3s4Ko5/GuAN9kGeDaXeDhCQyqd/nGIDNTJiAx7rM+1FMy6vk6YchDyy5RYPoTEZyCSrNuPsMdxydlkz210vdhCXPKjreZ1DNuNNu3LNqv9StX/I4F5Me58NBtn7ooNgRD3hIGPBuydg= 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 Mon, 17 Nov 2025 09:35:26 -0800 "Vishal Moola (Oracle)" wrote: > We should do a better job at enforcing gfp flags for vmalloc. Right now, we > have a kernel-doc for __vmalloc_node_range(), and hope callers pass in > supported flags. If a caller were to pass in an unsupported flag, we may > BUG, silently clear it, or completely ignore it. > > If we are more proactive about enforcing gfp flags, we can making sure > callers know when they may be asking for unsupported behavior. > > This patchset lets vmalloc control the incoming gfp flags, and cleans up > some hard to read gfp code. For the series, Acked-by: SeongJae Park > > --- > Linked rfc [1] and rfc v2[2] for convenience. > > Patch v2 -> v3: > Only changes the whitelist mask and comment in patch 1: I'd suggest s/whitelist/allow-list/. Thanks, SJ [...]