linux-kernel - [PATCH v4 22/24] ext4: support verifying data from large folios with fs-verity

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Message-Id: <20251121090654.631996-23-libaokun@huaweicloud.com>
Date: Fri, 21 Nov 2025 17:06:52 +0800
From: libaokun@...weicloud.com
To: linux-ext4@...r.kernel.org
Cc: tytso@....edu,
	adilger.kernel@...ger.ca,
	jack@...e.cz,
	linux-kernel@...r.kernel.org,
	kernel@...kajraghav.com,
	mcgrof@...nel.org,
	ebiggers@...nel.org,
	willy@...radead.org,
	yi.zhang@...wei.com,
	yangerkun@...wei.com,
	chengzhihao1@...wei.com,
	libaokun1@...wei.com,
	libaokun@...weicloud.com
Subject: [PATCH v4 22/24] ext4: support verifying data from large folios with fs-verity

From: Baokun Li <libaokun1@...wei.com>

Eric Biggers already added support for verifying data from large folios
several years ago in commit 5d0f0e57ed90 ("fsverity: support verifying
data from large folios").

With ext4 now supporting large block sizes, the fs-verity tests
`kvm-xfstests -c ext4/64k -g verity -x encrypt` pass without issues.

Therefore, remove the restriction and allow large folios to be enabled
together with fs-verity.

Cc: Eric Biggers <ebiggers@...nel.org>
Signed-off-by: Baokun Li <libaokun1@...wei.com>
Reviewed-by: Zhang Yi <yi.zhang@...wei.com>
Reviewed-by: Jan Kara <jack@...e.cz>
---
 fs/ext4/inode.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index fff059bfeb52..d2fa3471f59a 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5152,8 +5152,6 @@ static bool ext4_should_enable_large_folio(struct inode *inode)
 
 	if (!S_ISREG(inode->i_mode))
 		return false;
-	if (ext4_has_feature_verity(sb))
-		return false;
 	if (ext4_has_feature_encrypt(sb))
 		return false;
 
-- 
2.46.1