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Date: Tue, 13 May 2025 21:31:14 +0100
From: Al Viro <viro@zeniv.linux.org.uk>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>, dan.j.williams@intel.com,
	linux-cxl@vger.kernel.org, linux-kernel@vger.kernel.org,
	David Lechner <dlechner@baylibre.com>,
	Ingo Molnar <mingo@kernel.org>,
	"Fabio M. De Francesco" <fabio.maria.de.francesco@linux.intel.com>,
	Davidlohr Bueso <dave@stgolabs.net>,
	Jonathan Cameron <jonathan.cameron@huawei.com>,
	Dave Jiang <dave.jiang@intel.com>,
	Alison Schofield <alison.schofield@intel.com>,
	Vishal Verma <vishal.l.verma@intel.com>,
	Ira Weiny <ira.weiny@intel.com>
Subject: Re: [PATCH 1/7] cleanup: Introduce DEFINE_ACQUIRE() a CLASS() for
 conditional locking
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Sender: Al Viro <viro@ftp.linux.org.uk>

On Tue, May 13, 2025 at 09:06:19PM +0100, Al Viro wrote:

> FWIW (unsigned long)v - 1 >= (unsigned long)(-MAX_ERRNO-1) yields
>         leaq    -1(%rdi), %rax
> 	cmpq    $-4097, %rax
> 	ja      .L4
> from gcc and
>         leaq    4095(%rdi), %rax
> 	cmpq    $4095, %rax                     # imm = 0xFFF
> 	ja      .LBB0_1
> from clang...

Nevermind - should've read back through the thread for context.
Sorry.