Received-SPF: pass (google.com: domain of linux-kernel+bounces-59458-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1;
From: Daniel Gomez <da.gomez@samsung.com>
To: "viro@zeniv.linux.org.uk" <viro@zeniv.linux.org.uk>,
	"brauner@kernel.org" <brauner@kernel.org>, "jack@suse.cz" <jack@suse.cz>,
	"hughd@google.com" <hughd@google.com>, "akpm@linux-foundation.org"
	<akpm@linux-foundation.org>
CC: "dagmcr@gmail.com" <dagmcr@gmail.com>, "linux-fsdevel@vger.kernel.org"
	<linux-fsdevel@vger.kernel.org>, "linux-kernel@vger.kernel.org"
	<linux-kernel@vger.kernel.org>, "linux-mm@kvack.org" <linux-mm@kvack.org>,
	"willy@infradead.org" <willy@infradead.org>, "hch@infradead.org"
	<hch@infradead.org>, "mcgrof@kernel.org" <mcgrof@kernel.org>, Pankaj Raghav
	<p.raghav@samsung.com>, "gost.dev@samsung.com" <gost.dev@samsung.com>,
	Daniel Gomez <da.gomez@samsung.com>
Subject: [RFC PATCH 6/9] shmem: set folio uptodate when reclaim
Thread-Topic: [RFC PATCH 6/9] shmem: set folio uptodate when reclaim
Thread-Index: AQHaW2RUZLM8QyQXnk2QIeewqLmB5Q==
Date: Fri, 9 Feb 2024 14:29:03 +0000
Message-ID: <20240209142901.126894-7-da.gomez@samsung.com>
In-Reply-To: <20240209142901.126894-1-da.gomez@samsung.com>
Accept-Language: en-US, en-GB
Content-Language: en-US
x-ms-exchange-messagesentrepresentingtype: 1
x-ms-exchange-transport-fromentityheader: Hosted
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Precedence: bulk
X-Mailing-List: linux-kernel@vger.kernel.org
List-Id: <linux-kernel.vger.kernel.org>
List-Subscribe: <mailto:linux-kernel+subscribe@vger.kernel.org>
List-Unsubscribe: <mailto:linux-kernel+unsubscribe@vger.kernel.org>
MIME-Version: 1.0
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrHKsWRmVeSWpSXmKPExsWy7djP87qbzI6lGixYZ2kxZ/0aNovXhz8x
	Wpzt+81mcXrCIiaLp5/6WCxmT29mstiz9ySLxeVdc9gs7q35z2pxY8JTRovzf4+zWvz+MYfN
	gcdj56y77B4LNpV6bF6h5bFpVSebx6ZPk9g9Tsz4zeJxZsERdo/Pm+Q8Nj15yxTAGcVlk5Ka
	k1mWWqRvl8CV8WDpN5aCGWwVu7vvMzUw9rN2MXJySAiYSEy68Zu9i5GLQ0hgBaNE2/RfzBDO
	F0aJ9o2vWCCcz4wSW96/YYRp2fjnKxtEYjlQ1Y5tjHBVR47dARssJHCaUeLgngC4wefWNYK1
	swloSuw7uQlso4jAc0aJ1t0fwRxmgZvMEteunmcDqRIWsJfY9+gP2CgRAReJW98msUDYehJX
	F34Ai7MIqEjMm7ISKM7BwStgJTFrES9ImFPAWmLeo/VgYxgFZCUerfzFDmIzC4hL3Hoynwni
	B0GJRbP3MEPYYhL/dj1kg7B1JM5efwL1p4HE1qX7WCBsRYmOYzfZIOboSdyYOgXK1pZYtvA1
	2BxeoJknZz4BB5iEQBuXxL8tC6GGukgsPrEWyhaWeHV8CzuELSNxenIPywRG7VlI7puFZMcs
	JDtmIdmxgJFlFaN4amlxbnpqsVFearlecWJucWleul5yfu4mRmCSO/3v+JcdjMtffdQ7xMjE
	wXiIUYKDWUmEN2TJkVQh3pTEyqrUovz4otKc1OJDjNIcLErivKop8qlCAumJJanZqakFqUUw
	WSYOTqkGJk7DbxLFMQ4z67InWjw5UfZ57nONuvhfj5WbrFyPrhL2N+g8UXEvmpFbalr3sZcp
	e6cvDeSf4u56zsXwRsvbsGtGXqbaYcnPF7yb8FXo+zGJC/GLDm6/fcH2aY339boDLBfNvhlV
	czSeceJ47e7V1Jrc0FbFLPFz1Z0041yGt42fPfwkXm26m/n207f83wU3MmQ2G26YdGPW19So
	1axrGpX+OU50eLK7UeOX7zyuoizJbQq37r88xOY1PUCWMfflBwUz55ATn886sZr97rT5vde/
	ar7fw1vzas5UHJ92YG29/Q6jyIYdW7enMcx1XtCxO/HeBZPEkkebjqhuvHsoc8uxS7d9T7y6
	f9ZwxXumwkYlluKMREMt5qLiRACxqyeE4QMAAA==
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrJKsWRmVeSWpSXmKPExsVy+t/xu7qbzI6lGuw/IW0xZ/0aNovXhz8x
	Wpzt+81mcXrCIiaLp5/6WCxmT29mstiz9ySLxeVdc9gs7q35z2pxY8JTRovzf4+zWvz+MYfN
	gcdj56y77B4LNpV6bF6h5bFpVSebx6ZPk9g9Tsz4zeJxZsERdo/Pm+Q8Nj15yxTAGaVnU5Rf
	WpKqkJFfXGKrFG1oYaRnaGmhZ2RiqWdobB5rZWSqpG9nk5Kak1mWWqRvl6CX8WDpN5aCGWwV
	u7vvMzUw9rN2MXJySAiYSGz885Wti5GLQ0hgKaNE+5IHbBAJGYmNX65CFQlL/LnWBVX0kVGi
	4cEpVgjnNKNE74lnjBDOCkaJM+9/g7WwCWhK7Du5iR0kISLwlFFi+u9DLCAJZoGbzBJf3oiB
	2MIC9hL7Hv0BaxARcJG49W0SC4StJ3F14QewOIuAisS8KSuB4hwcvAJWErMW8YKEhYDMadtP
	g53KKWAtMe/RejCbUUBW4tHKX+wQq8Qlbj2ZzwTxgoDEkj3nmSFsUYmXj/9BvaYjcfb6E0YI
	20Bi69J9LBC2okTHsZtsEHP0JG5MnQJla0ssW/gabA6vgKDEyZlPWCYwSs9Csm4WkpZZSFpm
	IWlZwMiyilEktbQ4Nz232EivODG3uDQvXS85P3cTIzBNbTv2c8sOxpWvPuodYmTiYDzEKMHB
	rCTCG7LkSKoQb0piZVVqUX58UWlOavEhRlNgEE1klhJNzgcmyrySeEMzA1NDEzNLA1NLM2Ml
	cV7Pgo5EIYH0xJLU7NTUgtQimD4mDk6pBqZ5ho5S/3nX7Nx7V/NZhbc57+qVRxvS5P85r512
	JmzDIan0bfFn9l6f9Dh4rvOr5TXP3qewsBx6yPfj3K58dXvNq6/uBf7f8jrIt27Kozenvwdv
	+2S+0ObVt7s/bU4K7zGbplkzg4F7y0fZK3/KJiguzb166Ns8A5PamyvT9Y55GkYH7pjoyTgz
	Y/GcOcW8S47oLdYO+3Oh6Z+Jyt6WOadSyiX6d3QqP96cO51dV1XvvGTkvAfRObvf7Xyieum1
	SGzs7fRg/yJ5tj+Mybyp2R1WtzOvWQt1H9jHY/m85+H/H8nK+f4st9eyr28/LRe2Sp1nj56q
	3ddt4rY2EWHvv9jkCJ82+r3jkNkJ36JlJ9cnKLEUZyQaajEXFScCADcGFbrcAwAA
X-CMS-MailID: 20240209142906eucas1p2c31598bf448077f04eef66319ae2f3a1
X-Msg-Generator: CA
X-RootMTR: 20240209142906eucas1p2c31598bf448077f04eef66319ae2f3a1
X-EPHeader: CA
CMS-TYPE: 201P
X-CMS-RootMailID: 20240209142906eucas1p2c31598bf448077f04eef66319ae2f3a1
References: <20240209142901.126894-1-da.gomez@samsung.com>
	<CGME20240209142906eucas1p2c31598bf448077f04eef66319ae2f3a1@eucas1p2.samsung.com>

When reclaiming some space by splitting a large folio through
shmem_unused_huge_shrink(), a large folio is split regardless of its
uptodate status. Mark all the blocks as uptodate in the reclaim path so
split_folio() can release the folio private struct (shmem_folio_state).

Signed-off-by: Daniel Gomez <da.gomez@samsung.com>
---
 mm/shmem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/shmem.c b/mm/shmem.c
index b6f9a60b179b..9fa86cb82da9 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -836,6 +836,7 @@ static unsigned long shmem_unused_huge_shrink(struct sh=
mem_sb_info *sbinfo,
 			goto move_back;
 		}
=20
+		shmem_set_range_uptodate(folio, 0, folio_size(folio));
 		ret =3D split_folio(folio);
 		folio_unlock(folio);
 		folio_put(folio);
--=20
2.43.0