From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 BCEF4142E63 for ; Tue, 4 Jun 2024 09:26:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.92.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717493208; cv=none; b=Z7Pmo2QpGVQ01CzhXoal9Gb0u3ZOj0Y+xEI59nustlhi4lzPBU3Tinrp/QenVqyDG6j7+tc8v4E1+h9ej3EMpdOkZ4As57Y4FlOHnXV/CzFs9KzHrXPKcOOI8SUmY6fo27JIdiW8OkQTEruygu+IRtw4ftZljjOIU7pZAUWkJag= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717493208; c=relaxed/simple; bh=aVQnIPm1ZMTJ9RbIhPF6MnGMusADLtPLarvam/Gs+Fw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Jnfh7ulxF1US3vVX8T1F7GVlIsxWeT0EM2oAtbUzAdwtWOG0rus+RSbjJpMnKZ+vVMEF2SqmFRcev2mtWG/z4jNHsLV4kBxQU3CjlJ+urP5gu9I35n8c6COWF5e8Jf3SkyTSyAfXwaPYC7BXA+Yli7pvkO2WUFWVLlzCTK6iyEM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=M/iyTqJH; arc=none smtp.client-ip=90.155.92.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="M/iyTqJH" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; 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=L/kzu0HD4XWFceqdw27/Z8VfxVxA7swpYnMTjuuLn/M=; b=M/iyTqJHE2OlKfN+zUXDfOH2t9 fXYgrLVaBI8pKVD6qIpPK0XNELFzqfJAsMJIDjY1arMoMPSs42h60I74hMdjAfq8F31N0RpvrmK2O 4Xk5FdD2/fBRGt7e95bqMfPN2I9w8GBT2A24dDaCJNLknPNX2muzh4uInGa8uosJhJg4oRQvt/Itb gSGvmt881elLYoo9rL+gC8YXUK4ERezuv5xHKNCZTwW0mpTsGXoTR0bNGo+aQGxX61vA9fwiWNrZT 1UgJwv+0StSzARaaI6Em3HTaWJ+pWvlkLqpTJe6QH+0kSZEV+XXwl2/3/JIsTdU7n8yUFDXoTJkeO kOF2pK4Q==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1sEQRB-0000000FW6s-0LI4; Tue, 04 Jun 2024 09:26:37 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 9C4C730068B; Tue, 4 Jun 2024 11:26:35 +0200 (CEST) Date: Tue, 4 Jun 2024 11:26:35 +0200 From: Peter Zijlstra To: Josef Bacik Cc: Bernd Schubert , Miklos Szeredi , Amir Goldstein , linux-fsdevel@vger.kernel.org, bernd.schubert@fastmail.fm, Ingo Molnar , Andrei Vagin Subject: Re: [PATCH RFC v2 15/19] export __wake_on_current_cpu Message-ID: <20240604092635.GN26599@noisy.programming.kicks-ass.net> References: <20240529-fuse-uring-for-6-9-rfc2-out-v1-0-d149476b1d65@ddn.com> <20240529-fuse-uring-for-6-9-rfc2-out-v1-15-d149476b1d65@ddn.com> <20240530203729.GG2210558@perftesting> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240530203729.GG2210558@perftesting> On Thu, May 30, 2024 at 04:37:29PM -0400, Josef Bacik wrote: > On Wed, May 29, 2024 at 08:00:50PM +0200, Bernd Schubert wrote: > > This is needed by fuse-over-io-uring to wake up the waiting > > application thread on the core it was submitted from. > > Avoiding core switching is actually a major factor for > > fuse performance improvements of fuse-over-io-uring. > > > > Signed-off-by: Bernd Schubert > > Cc: Ingo Molnar > > Cc: Peter Zijlstra > > Cc: Andrei Vagin > > Reviewed-by: Josef Bacik > > Probably best to submit this as a one-off so the sched guys can take it and it's > not in the middle of a fuse patchset they may be ignoring. Thanks, On its own its going to not be applied. Never merge an EXPORT without a user. As is, I don't have enough of the series to even see the user, so yeah, not happy :/ And as hch said, this very much needs to be a GPL export.