From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 19885FE51FE for ; Fri, 24 Apr 2026 11:42:23 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 55D9B6B008A; Fri, 24 Apr 2026 07:42:22 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5084F6B0092; Fri, 24 Apr 2026 07:42:22 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3F6D06B0093; Fri, 24 Apr 2026 07:42:22 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 2D0966B008A for ; Fri, 24 Apr 2026 07:42:22 -0400 (EDT) Received: from smtpin12.hostedemail.com (lb01b-stub [10.200.18.250]) by unirelay01.hostedemail.com (Postfix) with ESMTP id DE3991C001A for ; Fri, 24 Apr 2026 11:42:21 +0000 (UTC) X-FDA: 84693261282.12.C1A7E2E Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf18.hostedemail.com (Postfix) with ESMTP id 4BE871C0002 for ; Fri, 24 Apr 2026 11:42:20 +0000 (UTC) Authentication-Results: imf18.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=Kgu550Dk; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf18.hostedemail.com: domain of a.hindborg@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=a.hindborg@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1777030940; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=tZKPR//23lfAsoiQUaKgV+4UP22jeYkcw+uzX5CkTWY=; b=gp4U+ykF/oWR6aMuNIQGZHuXbNP3mDk7emfbl5gfcBGalxv8dTvBNHQHG7XT9jUBFyg4SD cs7nrgxkOP1Iap3JxOq+reNoiRMk94HZ1QNi2pxnidcSlg/s61tXyvegwknRrmebWwroWn enTrjePHCrUbrpGCXmaivTHjaeO9EOk= ARC-Authentication-Results: i=1; imf18.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=Kgu550Dk; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf18.hostedemail.com: domain of a.hindborg@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=a.hindborg@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1777030940; a=rsa-sha256; cv=none; b=ANxlqqHDTGDQGQThNTApjYDsFVZ8NHatXLS2jvSf1AmvOxSdkjI+w+O3SPyup1Ju7pMe0A gUXsTWdEOp9goBGIzG6RHubqcxm5kX3Cjzss/5aCrlUaDVdy6Ar9/+DX9Hp2wkVIS2JIE9 mCqv8uX/REBA1KoViQ+T513r6zKojdo= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 59C964391B; Fri, 24 Apr 2026 11:42:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9BEA8C2BCB2; Fri, 24 Apr 2026 11:42:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777030939; bh=tZKPR//23lfAsoiQUaKgV+4UP22jeYkcw+uzX5CkTWY=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=Kgu550DkK0b83LfyXC1QrLfhE2FbAOqLtlQMYk3DkK7gO4khSFcFbSKOeiSYgAmIo rDFH4Ls19dcBs1eG2h/hrd9hynMntVd8izHKIfT0EXeFBbiWxu8O+8AbrI/jMPRuT2 BVxVj2ymMo/J41SYAs3dMAQ/mm5tVWWscicTSrqj7nKvaIK3+uDglaFvPYRihrQYXv Jiu73jNOhtiBzJHZAfMy6DiwyNMhpMXZp2Q6aRn9kmk2tMV/cxG1/u9izW4Z4jVbCm wHE+UmhoxAVxDmyevAUgG/O/hM34WLG2+RpUgvg82f9rQwYaAmagEyRAje11JSmEkH QV21uAC/FU4dw== From: Andreas Hindborg To: Alvin Sun , Miguel Ojeda , Boqun Feng , Gary Guo , =?utf-8?Q?Bj=C3=B6r?= =?utf-8?Q?n?= Roy Baron , Benno Lossin , Alice Ryhl , Trevor Gross , Danilo Krummrich , Lorenzo Stoakes , "Liam R. Howlett" , Tamir Duberstein Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Onur =?utf-8?Q?=C3=96zkan?= , Alvin Sun Subject: Re: [PATCH 4/4] rust: xarray: Add Guard::find() helper In-Reply-To: <20260417-tyr-ioctls-deps-v1-4-41c6e9bb061c@linux.dev> References: <20260417-tyr-ioctls-deps-v1-0-41c6e9bb061c@linux.dev> <1TcoEoC6DnctfKo9mZsuxSJtZ02ujRRd7O0Jxu62xR0JPeJcq2hB7XD1qBbjleyTBRMWf-uy0HLh7lWkYXbaMw==@protonmail.internalid> <20260417-tyr-ioctls-deps-v1-4-41c6e9bb061c@linux.dev> Date: Fri, 24 Apr 2026 13:42:06 +0200 Message-ID: <87se8kh9f5.fsf@t14s.mail-host-address-is-not-set> MIME-Version: 1.0 Content-Type: text/plain X-Rspam-User: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 4BE871C0002 X-Stat-Signature: 71qjhimsf88ak6wnk13rsegxx7igoox9 X-HE-Tag: 1777030940-492918 X-HE-Meta: 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 RD+HHBuG 2vFY75qz8X6jEhFQATifl5oheEpKjvoppDbbQx0Lg0w/dR3E/hUUwBJ/hoJZnC66E8dmquIVrOOwQTD88VD80fzjGrLhiaTRNFb1o/DT/ouZmNmwbwL5KYtT62msEUfcQYLaoNsf+hAT3GM2ZQXLOjuPP5Q== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: "Alvin Sun" writes: > Add a helper to find the first present entry in the XArray. > > Returns the index of the first present entry, or None if the array > is empty. > > Signed-off-by: Alvin Sun I submitted a similar patch a while back as part of the dependencies for rust null block [1]. Could you check if you could use this patch for your use case? Best regards, Andreas Hindborg [1] https://lore.kernel.org/all/20260209-xarray-entry-send-v3-7-f777c65b8ae2@kernel.org/