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Message-ID: <aFudm1ndfN-kTSOx@infradead.org>
Date: Tue, 24 Jun 2025 23:56:27 -0700
From: "hch@...radead.org" <hch@...radead.org>
To: 陈涛涛 Taotao Chen <chentaotao@...iglobal.com>
Cc: "tytso@....edu" <tytso@....edu>,
	"hch@...radead.org" <hch@...radead.org>,
	"adilger.kernel@...ger.ca" <adilger.kernel@...ger.ca>,
	"willy@...radead.org" <willy@...radead.org>,
	"brauner@...nel.org" <brauner@...nel.org>,
	"jani.nikula@...ux.intel.com" <jani.nikula@...ux.intel.com>,
	"rodrigo.vivi@...el.com" <rodrigo.vivi@...el.com>,
	"tursulin@...ulin.net" <tursulin@...ulin.net>,
	"airlied@...il.com" <airlied@...il.com>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
	"linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
	"intel-gfx@...ts.freedesktop.org" <intel-gfx@...ts.freedesktop.org>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"chentao325@...com" <chentao325@...com>
Subject: Re: [PATCH v2 0/5] fs: refactor write_begin/write_end and add ext4
 IOCB_DONTCACHE support

Thanks, I really like the i915 work to stop the shmem abuse.

I still hate it that we just change the write_begin/end ops while still
in the address_space ops vs passing explicit callbacks, because that
means we'll some other version of that abuse back sooner or later :(


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