From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-182.mta1.migadu.com (out-182.mta1.migadu.com [95.215.58.182]) (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 5120C379998 for ; Mon, 23 Feb 2026 22:36:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771886183; cv=none; b=UoaOXhEt0dGjILDansjgCIZNYrludaPrSDC84M8OhV0/Zv2y1qzkol3eAgD5/Q7gll6Z/++VLeF4Ak8leGeppo7Zo4Bua2JMgoWIX+flN5DINw+GwZEXA4+vqL46ZBihTELAhHtMncw5RV8CfVwyduEAHQozM2yiIFULjTD8oZQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771886183; c=relaxed/simple; bh=c/MpV82BwZq4fsF7sSBWV0E8/a0M5n/zUgz/nHjkPag=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=OqUo1M0vhdyMKwRudCGDd+KcF/XYL3+ewbT5r7MiVW4tnRUcC7GMYCQIguAw4ufjXIDgHjuFrmBiEaXORc6vxvkzmJf+X1C9aP2b44MWfb2SrZy+Qz8/TFhM0SBE3lkt5n1hJ/VxWC+BZDbX0JVB4IV/n7VA3rPyD5BZQCgYFnU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=w7O1/gGx; arc=none smtp.client-ip=95.215.58.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="w7O1/gGx" Date: Mon, 23 Feb 2026 14:36:01 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1771886170; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=zDZJJyZ7IybQJkD08lIeKoohpnEfHBOokZpr1hipx2Q=; b=w7O1/gGxpf9KkaRXmd2zY7VV0wWYJo83dYPGj/+G+/IdNRODXsASEMfSMzbf6UqJzTJtXb uKsU3rGDFmM3JSX/ore6gYZl5pl71WTCFXVlR1ykXPUVrp2YAv27KiAG1cKfMRCgwlqUn8 iltCqg+uxvPUp31GSbs0/+GFH+eO7js= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Shakeel Butt To: Dmitry Ilvokhin Cc: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Brendan Jackman , Johannes Weiner , Zi Yan , Oscar Salvador , Qi Zheng , Axel Rasmussen , Yuanchu Xie , Wei Xu , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org, linux-cxl@vger.kernel.org, kernel-team@meta.com Subject: Re: [PATCH 1/4] mm: introduce zone lock wrappers Message-ID: References: <3826dd6dc55a9c5721ec3de85f019764a6cf3222.1770821420.git.d@ilvokhin.com> Precedence: bulk X-Mailing-List: linux-kernel@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: <3826dd6dc55a9c5721ec3de85f019764a6cf3222.1770821420.git.d@ilvokhin.com> X-Migadu-Flow: FLOW_OUT On Wed, Feb 11, 2026 at 03:22:13PM +0000, Dmitry Ilvokhin wrote: > Add thin wrappers around zone lock acquire/release operations. This > prepares the code for future tracepoint instrumentation without > modifying individual call sites. > > Centralizing zone lock operations behind wrappers allows future > instrumentation or debugging hooks to be added without touching > all users. > > No functional change intended. The wrappers are introduced in > preparation for subsequent patches and are not yet used. > > Signed-off-by: Dmitry Ilvokhin > --- > MAINTAINERS | 1 + > include/linux/zone_lock.h | 38 ++++++++++++++++++++++++++++++++++++++ > 2 files changed, 39 insertions(+) > create mode 100644 include/linux/zone_lock.h > > diff --git a/MAINTAINERS b/MAINTAINERS > index b4088f7290be..680c9ae02d7e 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -16498,6 +16498,7 @@ F: include/linux/pgtable.h > F: include/linux/ptdump.h > F: include/linux/vmpressure.h > F: include/linux/vmstat.h > +F: include/linux/zone_lock.h > F: kernel/fork.c > F: mm/Kconfig > F: mm/debug.c > diff --git a/include/linux/zone_lock.h b/include/linux/zone_lock.h > new file mode 100644 > index 000000000000..c531e26280e6 > --- /dev/null > +++ b/include/linux/zone_lock.h > @@ -0,0 +1,38 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +#ifndef _LINUX_ZONE_LOCK_H > +#define _LINUX_ZONE_LOCK_H > + > +#include > +#include > + > +static inline void zone_lock_init(struct zone *zone) > +{ > + spin_lock_init(&zone->lock); > +} > + > +#define zone_lock_irqsave(zone, flags) \ > +do { \ > + spin_lock_irqsave(&(zone)->lock, flags); \ > +} while (0) > + > +#define zone_trylock_irqsave(zone, flags) \ > +({ \ > + spin_trylock_irqsave(&(zone)->lock, flags); \ > +}) Any reason you used macros for above two and inlined functions for remaining? > + > +static inline void zone_unlock_irqrestore(struct zone *zone, unsigned long flags) > +{ > + spin_unlock_irqrestore(&zone->lock, flags); > +} > + > +static inline void zone_lock_irq(struct zone *zone) > +{ > + spin_lock_irq(&zone->lock); > +} > + > +static inline void zone_unlock_irq(struct zone *zone) > +{ > + spin_unlock_irq(&zone->lock); > +} > + > +#endif /* _LINUX_ZONE_LOCK_H */ > -- > 2.47.3 >