[v3] ext4: enable block size larger than page size

[PATCH v3 22/24] ext4: support verifying data from large folios with fs-verity

Posted by libaokun@huaweicloud.com 3 months ago

From: Baokun Li <libaokun1@huawei.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@kernel.org>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
---
 fs/ext4/inode.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 613a989bf750..7b979e64f481 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

Re: [PATCH v3 22/24] ext4: support verifying data from large folios with fs-verity

Posted by Jan Kara 2 months, 4 weeks ago

On Tue 11-11-25 22:26:32, libaokun@huaweicloud.com wrote:
> From: Baokun Li <libaokun1@huawei.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@kernel.org>
> Signed-off-by: Baokun Li <libaokun1@huawei.com>

Looks good. Feel free to add:

Reviewed-by: Jan Kara <jack@suse.cz>

								Honza

> ---
>  fs/ext4/inode.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
> index 613a989bf750..7b979e64f481 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
> 
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

Re: [PATCH v3 22/24] ext4: support verifying data from large folios with fs-verity

Posted by Zhang Yi 2 months, 4 weeks ago

On 11/11/2025 10:26 PM, libaokun@huaweicloud.com wrote:
> From: Baokun Li <libaokun1@huawei.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@kernel.org>
> Signed-off-by: Baokun Li <libaokun1@huawei.com>

Looks good to me.

Reviewed-by: Zhang Yi <yi.zhang@huawei.com>

> ---
>  fs/ext4/inode.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
> index 613a989bf750..7b979e64f481 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;
>