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[82.69.66.36]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4601f2e4004sm24140153f8f.9.2026.06.05.01.33.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Jun 2026 01:33:34 -0700 (PDT) Date: Fri, 5 Jun 2026 09:33:32 +0100 From: David Laight To: "Theodore Tso" Cc: Mike Rapoport , Jan Kara , Mark Fasheh , Joel Becker , Joseph Qi , Ryusuke Konishi , Viacheslav Dubeyko , Trond Myklebust , Anna Schumaker , Chuck Lever , Jeff Layton , NeilBrown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Alexander Viro , Christian Brauner , Jan Kara , Dave Kleikamp , Miklos Szeredi , Andreas Hindborg , Breno Leitao , Kees Cook , "Tigran A. Aivazian" , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, ocfs2-devel@lists.linux.dev, linux-nilfs@vger.kernel.org, linux-nfs@vger.kernel.org, jfs-discussion@lists.sourceforge.net, linux-ext4@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH 10/17] jbd2: replace __get_free_pages() with kmalloc() Message-ID: <20260605093332.7b067876@pumpkin> In-Reply-To: References: <20260523-b4-fs-v1-0-275e36a83f0e@kernel.org> <20260523-b4-fs-v1-10-275e36a83f0e@kernel.org> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; arm-unknown-linux-gnueabihf) Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 4 Jun 2026 10:05:52 -0400 "Theodore Tso" wrote: ... > I suppose we could do it with kmalloc() with some flags which to > prevent forced reclaim / compaction, and if that fails, then fall back > to vmalloc(). Is there a better way? There is already kvalloc(). I'm not sure how hard that tries to get kmalloc() to succeed. -- David > > Thanks, > > - Ted >