From patchwork Fri Mar 7 22:49:36 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miguel Ojeda X-Patchwork-Id: 14008999 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A265A20D503; Fri, 7 Mar 2025 22:51:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741387915; cv=none; b=Ai1C76yh5vDzPj855ME3N4o9mkngecE6VR//Kx+legiwluXxLCaCNFQfhPcM53FiGWKRWSzF0sGBSSZBvTPr5CGL2E4nmrnZ/or7o5hd4q2IKp47BI7JKrSQQtrCvJwhaI/RNRHeykAlRp4Ax5qZ7OIzI9poZg2ahlOJNO9/2C0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741387915; c=relaxed/simple; bh=qc4QrBNJesFQBeuDTq10bX6lOYQzlOA7Rre+242h7mU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=A7Qls2L01NT+C1e8AJ33EIco+2OT3gNhzoGyQoI9tsSnNoGXPpt788N36UshhjqIyu4woufbOs4DbC7p/2nOj0y9K0+HbYdvS62KIEluApRdsIQS9nspY5tx559Gp5MzOtiYVACbWx0fT90SlXHKqPiyjJplHZwsF9XMvX12k4M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZDVZWjAl; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ZDVZWjAl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EA542C4CED1; Fri, 7 Mar 2025 22:51:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741387915; bh=qc4QrBNJesFQBeuDTq10bX6lOYQzlOA7Rre+242h7mU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZDVZWjAlVRgzC5U4P9anccYT/yDbCvWaKBVXh7cJSOBVbXHNl31PJT1MzOqan/XRj hLhjBfxZimLdbGLpsLaIVcqT5wCyintede5aIkAxoiNGmknCCNO+vxjA2zOmWpgPgC OQl+2z2U9LkczotZ6XKE/0OYn/aEBLWAMUeKEBX0irkzzULnE1SYrRfnsoj4HvJm9H Hwux32osuX3WBrewatTroXw7kMaNQ7h9G47fjwFq4TlTb7B9TjD46DQyJqOrUqZfsD CW0uSIBn5z4IImnfsNeKmd52KWXdmMuhg2wzTA9sCjqs+uT7G4LxaTgolBlVqYd66u dvQ5U7vZ8Ulug== From: Miguel Ojeda To: Greg Kroah-Hartman , Sasha Levin , stable@vger.kernel.org Cc: Danilo Krummrich , Alice Ryhl , Alyssa Ross , NoisyCoil , patches@lists.linux.dev, Miguel Ojeda Subject: [PATCH 6.12.y 29/60] rust: alloc: add __GFP_NOWARN to `Flags` Date: Fri, 7 Mar 2025 23:49:36 +0100 Message-ID: <20250307225008.779961-30-ojeda@kernel.org> In-Reply-To: <20250307225008.779961-1-ojeda@kernel.org> References: <20250307225008.779961-1-ojeda@kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Danilo Krummrich commit 01b2196e5aac8af9343282d0044fa0d6b07d484c upstream. Some test cases in subsequent patches provoke allocation failures. Add `__GFP_NOWARN` to enable test cases to silence unpleasant warnings. Reviewed-by: Alice Ryhl Reviewed-by: Benno Lossin Reviewed-by: Gary Guo Signed-off-by: Danilo Krummrich Link: https://lore.kernel.org/r/20241004154149.93856-11-dakr@kernel.org Signed-off-by: Miguel Ojeda --- rust/bindings/bindings_helper.h | 1 + rust/kernel/alloc.rs | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/rust/bindings/bindings_helper.h b/rust/bindings/bindings_helper.h index ae82e9c941af..a80783fcbe04 100644 --- a/rust/bindings/bindings_helper.h +++ b/rust/bindings/bindings_helper.h @@ -31,4 +31,5 @@ const gfp_t RUST_CONST_HELPER_GFP_KERNEL_ACCOUNT = GFP_KERNEL_ACCOUNT; const gfp_t RUST_CONST_HELPER_GFP_NOWAIT = GFP_NOWAIT; const gfp_t RUST_CONST_HELPER___GFP_ZERO = __GFP_ZERO; const gfp_t RUST_CONST_HELPER___GFP_HIGHMEM = ___GFP_HIGHMEM; +const gfp_t RUST_CONST_HELPER___GFP_NOWARN = ___GFP_NOWARN; const blk_features_t RUST_CONST_HELPER_BLK_FEAT_ROTATIONAL = BLK_FEAT_ROTATIONAL; diff --git a/rust/kernel/alloc.rs b/rust/kernel/alloc.rs index b5605aab182d..8172106a1423 100644 --- a/rust/kernel/alloc.rs +++ b/rust/kernel/alloc.rs @@ -91,6 +91,11 @@ pub mod flags { /// use any filesystem callback. It is very likely to fail to allocate memory, even for very /// small allocations. pub const GFP_NOWAIT: Flags = Flags(bindings::GFP_NOWAIT); + + /// Suppresses allocation failure reports. + /// + /// This is normally or'd with other flags. + pub const __GFP_NOWARN: Flags = Flags(bindings::__GFP_NOWARN); } /// The kernel's [`Allocator`] trait.