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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0B80C636D7 for ; Thu, 2 Feb 2023 15:11:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232760AbjBBPL2 (ORCPT ); Thu, 2 Feb 2023 10:11:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53844 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232517AbjBBPLX (ORCPT ); Thu, 2 Feb 2023 10:11:23 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0811292EC7; Thu, 2 Feb 2023 07:10:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=bBVtD8HDRvQYs8mba3bwj+awzZrl0jktJ7xWlq9eHKw=; b=ZjWQ5uFB92+yVSjRdTOT6H7l6b jftNrvi3rA1m8Y33ff3YzMoRWx31ph14b6kOkPVktcWTyZnLjMkay/mEN5l14GCc3Ruzv2mFObLX0 o2x85g49AFWEsmc5zeJTes3prIUyo8Zt4RqEuEccFFU++B3BMJnWQyyUDhPWnb/22CWqZdbt718+8 pkHZ3S2XjxGWRL1mRXuLmcv607SBEuMzTeVxuc7gBZVZAIz1OdVBDjnYU5VyVuhJ9xWrOg4ZtJV7n VTrxyavmP19HgvpXwDavZ3DhbyoV80YtP9D3pOI2s0PYR2p0JG3qjIWRdiPW28OROlc4Q3RsJgZRA UUbM/Izw==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pNbEM-00DUHm-QH; Thu, 02 Feb 2023 15:10:30 +0000 Date: Thu, 2 Feb 2023 15:10:30 +0000 From: Matthew Wilcox To: Jiri Olsa Cc: Alexei Starovoitov , Andrii Nakryiko , Hao Luo , Andrew Morton , Alexander Viro , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , bpf@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-perf-users@vger.kernel.org, Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Daniel Borkmann Subject: Re: [RFC 0/5] mm/bpf/perf: Store build id in file object Message-ID: References: <20230201135737.800527-1-jolsa@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230201135737.800527-1-jolsa@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 01, 2023 at 02:57:32PM +0100, Jiri Olsa wrote: > hi, > we have a use cases for bpf programs to use binary file's build id. What is your use case? Is it some hobbyist thing or is it something that distro kernels are all going to enable?