From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from shelob.surriel.com (shelob.surriel.com [96.67.55.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DBD60367F4D for ; Tue, 30 Jun 2026 19:33:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=96.67.55.147 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782847994; cv=none; b=uBYkJtsYQGZA+1OpwY5s0XsMzN2RIlJ4pactfmB1N3DEJjwGgy0EW6fPPtiCwfixeIRjobWjY5DSy+aMsbO4O+Jc7FWCAuEf/MnP20aoaXytm3XTTj8HNLp/PiPtOhjcoqKA3cNzQ48rPeGsrAqp6XRacKEmUS4m0einj0dHpV4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782847994; c=relaxed/simple; bh=ZSyZS1TOzJuDNaIHWvzKHOzXwZwWpLUZ5WG7d7inBJo=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=V7jtmdJpuosiGEnkYoVW1p1q8GgM8oE6v6VTsosWd7qPpQfrKHNOOxPP49qYd/GBISCbYUWcy/agj1vnSj8bSBAaNtgIGEGZHsSqoX39WA1mj6tA6x1AYlcNjFktOkkXmUyfdjwC/AtOt2WN5KKd6mZwUdyJ4bJ0kNaqS1U/+o8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=surriel.com; spf=pass smtp.mailfrom=surriel.com; dkim=pass (2048-bit key) header.d=surriel.com header.i=@surriel.com header.b=FescMT3i; arc=none smtp.client-ip=96.67.55.147 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=surriel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=surriel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=surriel.com header.i=@surriel.com header.b="FescMT3i" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=surriel.com ; s=mail; h=MIME-Version:Content-Transfer-Encoding:Content-Type:References: In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=ZSyZS1TOzJuDNaIHWvzKHOzXwZwWpLUZ5WG7d7inBJo=; b=FescMT3iIb2vsUaxrZ+YG03EvL ll2tGC6rK1lI6hIMUz/EYpaUERW+RsT2vBmfhfj8BBdXVWvIgX9MVMm4Rhi5dz0Bh82vuelRCKSe/ TI6OmIVcz1t2OYEM59MT+l+ifKBDf7SMFYdM7cfDc/n4CwHKQuptxCo+APNXzm63eLj/vYJjQXEpR xGl0r4GUV7l0Y2NilvPLFQgOubXU0ysU2TtFfkRjWSwsRXbofBGUeogdijzMorh0EQ5UX0TFr2PHZ ZUpzAXRJuaqsqPxfESfVRH2NvoJ8e4KKt2tMlJJ/GqxueatwLWMxyT6UgAZ6lmi6VoZPwBAVCbkRX LWOoe+lw==; Received: from fangorn.home.surriel.com ([10.0.13.7]) by shelob.surriel.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.97.1) (envelope-from ) id 1weeCN-000000008Bg-40Uc; Tue, 30 Jun 2026 15:32:47 -0400 Message-ID: Subject: Re: [PATCH v2 13/19] maple_tree: Document that erase may use GFP_KERNEL for allocations From: Rik van Riel To: "Liam R. Howlett (Oracle)" , Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, maple-tree@lists.infradead.org, Jason Gunthorpe Date: Tue, 30 Jun 2026 15:32:47 -0400 In-Reply-To: <20260630190843.3563858-14-liam@infradead.org> References: <20260630190843.3563858-1-liam@infradead.org> <20260630190843.3563858-14-liam@infradead.org> Autocrypt: addr=riel@surriel.com; prefer-encrypt=mutual; keydata=mQENBFIt3aUBCADCK0LicyCYyMa0E1lodCDUBf6G+6C5UXKG1jEYwQu49cc/gUBTTk33A eo2hjn4JinVaPF3zfZprnKMEGGv4dHvEOCPWiNhlz5RtqH3SKJllq2dpeMS9RqbMvDA36rlJIIo47 Z/nl6IA8MDhSqyqdnTY8z7LnQHqq16jAqwo7Ll9qALXz4yG1ZdSCmo80VPetBZZPw7WMjo+1hByv/ lvdFnLfiQ52tayuuC1r9x2qZ/SYWd2M4p/f5CLmvG9UcnkbYFsKWz8bwOBWKg1PQcaYHLx06sHGdY dIDaeVvkIfMFwAprSo5EFU+aes2VB2ZjugOTbkkW2aPSWTRsBhPHhV6dABEBAAG0HlJpayB2YW4gU mllbCA8cmllbEByZWRoYXQuY29tPokBHwQwAQIACQUCW5LcVgIdIAAKCRDOed6ShMTeg05SB/986o gEgdq4byrtaBQKFg5LWfd8e+h+QzLOg/T8mSS3dJzFXe5JBOfvYg7Bj47xXi9I5sM+I9Lu9+1XVb/ r2rGJrU1DwA09TnmyFtK76bgMF0sBEh1ECILYNQTEIemzNFwOWLZZlEhZFRJsZyX+mtEp/WQIygHV WjwuP69VJw+fPQvLOGn4j8W9QXuvhha7u1QJ7mYx4dLGHrZlHdwDsqpvWsW+3rsIqs1BBe5/Itz9o 6y9gLNtQzwmSDioV8KhF85VmYInslhv5tUtMEppfdTLyX4SUKh8ftNIVmH9mXyRCZclSoa6IMd635 Jq1Pj2/Lp64tOzSvN5Y9zaiCc5FucXtB9SaWsgdmFuIFJpZWwgPHJpZWxAc3VycmllbC5jb20+iQE +BBMBAgAoBQJSLd2lAhsjBQkSzAMABgsJCAcDAgYVCAIJCgsEFgIDAQIeAQIXgAAKCRDOed6ShMTe g4PpB/0ZivKYFt0LaB22ssWUrBoeNWCP1NY/lkq2QbPhR3agLB7ZXI97PF2z/5QD9Fuy/FD/jddPx KRTvFCtHcEzTOcFjBmf52uqgt3U40H9GM++0IM0yHusd9EzlaWsbp09vsAV2DwdqS69x9RPbvE/Ne fO5subhocH76okcF/aQiQ+oj2j6LJZGBJBVigOHg+4zyzdDgKM+jp0bvDI51KQ4XfxV593OhvkS3z 3FPx0CE7l62WhWrieHyBblqvkTYgJ6dq4bsYpqxxGJOkQ47WpEUx6onH+rImWmPJbSYGhwBzTo0Mm G1Nb1qGPG+mTrSmJjDRxrwf1zjmYqQreWVSFEt26tBpSaWsgdmFuIFJpZWwgPHJpZWxAZmIuY29tP okBPgQTAQIAKAUCW5LbiAIbIwUJEswDAAYLCQgHAwIGFQgCCQoLBBYCAwECHgECF4AACgkQznneko TE3oOUEQgAsrGxjTC1bGtZyuvyQPcXclap11Ogib6rQywGYu6/Mnkbd6hbyY3wpdyQii/cas2S44N cQj8HkGv91JLVE24/Wt0gITPCH3rLVJJDGQxprHTVDs1t1RAbsbp0XTksZPCNWDGYIBo2aHDwErhI omYQ0Xluo1WBtH/UmHgirHvclsou1Ks9jyTxiPyUKRfae7GNOFiX99+ZlB27P3t8CjtSO831Ij0Ip QrfooZ21YVlUKw0Wy6Ll8EyefyrEYSh8KTm8dQj4O7xxvdg865TLeLpho5PwDRF+/mR3qi8CdGbkE c4pYZQO8UDXUN4S+pe0aTeTqlYw8rRHWF9TnvtpcNzZw== Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2 (3.56.2-2.fc42) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Tue, 2026-06-30 at 15:08 -0400, Liam R. Howlett (Oracle) wrote: > State that the mas_erase() and mtree_erase() functions may use > GFP_KERNEL on allocation retry.=C2=A0 Don't just depend on people reading > the > documentation by adding a check that will warn of the use. >=20 > Cc: Jason Gunthorpe > Cc: Rik van Riel > Signed-off-by: Liam R. Howlett (Oracle) >=20 Reviewed-by: Rik van Riel --=20 All Rights Reversed.