From mboxrd@z Thu Jan 1 00:00:00 1970 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 474591B962; Fri, 5 Apr 2024 16:31:47 +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=1712334707; cv=none; b=dIJX0/GbRrA/I7Xbk6iCZeyFK//oSS90u8ePX/9Sv+atH1/7X5w0FyTrugZIzQua+s/jYzVEt/RZmDAdqOBg97WJa6nI37zp+5pl8nltpva5sXmIZLl/GWgDM0gmBNsQiqzgxDvyTzIg+IYd8kEIcG8roBBzEjKJ+2m12/5YvRQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712334707; c=relaxed/simple; bh=vLB0RLP186o5BEmkFHpB0kflt/kis3fM7NERkY/HLhk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=E+XJj189REZ2Iyv0ER5hXH+RFeHOH1OBtgRCHw8+xoWiTexdjMIORd5xi/9wWCoQBjg+hV7x2Gqgz/E8EhnBz3lYg5Th/6sXxC7j4O2pBDrERQuNseOAGtkzvUwe7GBeCiYqmEg99cnhaoBvX1x31UsCAi91kRam7czYIxGXVjA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=v6KwdisF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="v6KwdisF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 53298C43390; Fri, 5 Apr 2024 16:31:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712334706; bh=vLB0RLP186o5BEmkFHpB0kflt/kis3fM7NERkY/HLhk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=v6KwdisFlpX+JbXFyx8pMdROjMYtxZklBmJEUvRbq5STZFLpMEfYlL04XenV68Kza wqB5GHkc3hBorAOul3pkOB/6H/7XfPWXFe5GOqTHxDs+x4k9ZuWM8tscUi4CbljNeP lKqjnICO5m2aQVZrY3Ry9Su3bCSUL9hEPaKBp73Y= Date: Fri, 5 Apr 2024 18:31:43 +0200 From: Greg KH To: Andrii Nakryiko Cc: andrii@kernel.org, ast@kernel.org, jolsa@kernel.org, stable@vger.kernel.org, bpf Subject: Re: FAILED: patch "[PATCH] bpf: support deferring bpf_link dealloc to after RCU grace" failed to apply to 6.8-stable tree Message-ID: <2024040528-backroom-hardened-4248@gregkh> References: <2024040527-propeller-immovably-a6d8@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Fri, Apr 05, 2024 at 09:21:15AM -0700, Andrii Nakryiko wrote: > On Fri, Apr 5, 2024 at 9:15 AM Andrii Nakryiko > wrote: > > > > On Fri, Apr 5, 2024 at 2:50 AM wrote: > > > > > > > > > The patch below does not apply to the 6.8-stable tree. > > > If someone wants it applied there, or to any other stable or longterm > > > tree, then please email the backport, including the original git commit > > > id to . > > > > > > > This is strange, I get a clean auto-merged cherry-pick: > > > > $ git co linux-6.8.y > > Updating files: 100% (10694/10694), done. > > branch 'linux-6.8.y' set up to track 'stable/linux-6.8.y'. > > Switched to a new branch 'linux-6.8.y' > > $ git cp -x 1a80dbcb2dbaf6e4c216e62e30fa7d3daa8001ce > > Auto-merging include/linux/bpf.h > > Auto-merging kernel/bpf/syscall.c > > Auto-merging kernel/trace/bpf_trace.c > > [linux-6.8.y fd74c60792f5] bpf: support deferring bpf_link dealloc to > > after RCU grace period > > Date: Wed Mar 27 22:24:26 2024 -0700 > > 3 files changed, 49 insertions(+), 6 deletions(-) > > > > Note that e9c856cabefb ("bpf: put uprobe link's path and task in > > release callback") has to be backported at the same time. I'll > > cherry-pick both and will send it just in case. > > > > Ah, so it doesn't build (trivial link->prog->sleepable -> > link->prog->aux->sleepable change, will fix up). Not sure if possible, > but it would be nice to distinguish between patch not applying vs it > causing build (or test) failures, but no big deal. I only have 1 script, sorry :) thanks, greg k-h