[f2fs-dev] [PATCH 03/11] fsverity: pass struct file to ->write_merkle_tree_block

Christoph Hellwig
2026-01-22T08:22:56Z

This will make an iomap implementation of the method easier.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/btrfs/verity.c | 5 +++--
fs/ext4/verity.c | 6 +++---
fs/f2fs/verity.c | 6 +++---
fs/verity/enable.c | 9 +++++----
include/linux/fsverity.h | 4 ++--
5 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/fs/btrfs/verity.c b/fs/btrfs/verity.c
index a2ac3fb68bc8..e7643c22a6bf 100644
--- a/fs/btrfs/verity.c
+++ b/fs/btrfs/verity.c
@@ -774,16 +774,17 @@ static struct page *btrfs_read_merkle_tree_page(struct inode *inode,
/*
* fsverity op that writes a Merkle tree block into the btree.
*
- * @inode: inode to write a Merkle tree block for
+ * @file: file to write a Merkle tree block for
* @buf: Merkle tree block to write
* @pos: the position of the block in the Merkle tree (in bytes)
* @size: the Merkle tree block size (in bytes)
*
* Returns 0 on success or negative error code on failure
*/
-static int btrfs_write_merkle_tree_block(struct inode *inode, const void *buf,
+static int btrfs_write_merkle_tree_block(struct file *file, const void *buf,
u64 pos, unsigned int size)
{
+ struct inode *inode = file_inode(file);
loff_t merkle_pos = merkle_file_pos(inode);

if (merkle_pos < 0)
diff --git a/fs/ext4/verity.c b/fs/ext4/verity.c
index 415d9c4d8a32..2ce4cf8a1e31 100644
--- a/fs/ext4/verity.c
+++ b/fs/ext4/verity.c
@@ -380,12 +380,12 @@ static struct page *ext4_read_merkle_tree_page(struct inode *inode,
return folio_file_page(folio, index);
}

-static int ext4_write_merkle_tree_block(struct inode *inode, const void *buf,
+static int ext4_write_merkle_tree_block(struct file *file, const void *buf,
u64 pos, unsigned int size)
{
- pos += ext4_verity_metadata_pos(inode);
+ pos += ext4_verity_metadata_pos(file_inode(file));

- return pagecache_write(inode, buf, size, pos);
+ return pagecache_write(file_inode(file), buf, size, pos);
}

const struct fsverity_operations ext4_verityops = {
diff --git a/fs/f2fs/verity.c b/fs/f2fs/verity.c
index 05b935b55216..c1c4d8044681 100644
--- a/fs/f2fs/verity.c
+++ b/fs/f2fs/verity.c
@@ -278,12 +278,12 @@ static struct page *f2fs_read_merkle_tree_page(struct inode *inode,
return folio_file_page(folio, index);
}

-static int f2fs_write_merkle_tree_block(struct inode *inode, const void *buf,
+static int f2fs_write_merkle_tree_block(struct file *file, const void *buf,
u64 pos, unsigned int size)
{
- pos += f2fs_verity_metadata_pos(inode);
+ pos += f2fs_verity_metadata_pos(file_inode(file));

- return pagecache_write(inode, buf, size, pos);
+ return pagecache_write(file_inode(file), buf, size, pos);
}

const struct fsverity_operations f2fs_verityops = {
diff --git a/fs/verity/enable.c b/fs/verity/enable.c
index 95ec42b84797..c56c18e2605b 100644
--- a/fs/verity/enable.c
+++ b/fs/verity/enable.c
@@ -41,14 +41,15 @@ static int hash_one_block(const struct merkle_tree_params *params,
return 0;
}

-static int write_merkle_tree_block(struct inode *inode, const u8 *buf,
+static int write_merkle_tree_block(struct file *file, const u8 *buf,
unsigned long index,
const struct merkle_tree_params *params)
{
+ struct inode *inode = file_inode(file);
u64 pos = (u64)index << params->log_blocksize;
int err;

- err = inode->i_sb->s_vop->write_merkle_tree_block(inode, buf, pos,
+ err = inode->i_sb->s_vop->write_merkle_tree_block(file, buf, pos,
params->block_size);
if (err)
fsverity_err(inode, "Error %d writing Merkle tree block %lu",
@@ -135,7 +136,7 @@ static int build_merkle_tree(struct file *filp,
err = hash_one_block(params, &buffers[level]);
if (err)
goto out;
- err = write_merkle_tree_block(inode,
+ err = write_merkle_tree_block(filp,
buffers[level].data,
level_offset[level],
params);
@@ -155,7 +156,7 @@ static int build_merkle_tree(struct file *filp,
err = hash_one_block(params, &buffers[level]);
if (err)
goto out;
- err = write_merkle_tree_block(inode,
+ err = write_merkle_tree_block(filp,
buffers[level].data,
level_offset[level],
params);
diff --git a/include/linux/fsverity.h b/include/linux/fsverity.h
index ea1ed2e6c2f9..e22cf84fe83a 100644
--- a/include/linux/fsverity.h
+++ b/include/linux/fsverity.h
@@ -116,7 +116,7 @@ struct fsverity_operations {
/**
* Write a Merkle tree block to the given inode.
*
- * @inode: the inode for which the Merkle tree is being built
+ * @file: the file for which the Merkle tree is being built
* @buf: the Merkle tree block to write
* @pos: the position of the block in the Merkle tree (in bytes)
* @size: the Merkle tree block size (in bytes)
@@ -126,7 +126,7 @@ struct fsverity_operations {
*
* Return: 0 on success, -errno on failure
*/
- int (*write_merkle_tree_block)(struct inode *inode, const void *buf,
+ int (*write_merkle_tree_block)(struct file *file, const void *buf,
u64 pos, unsigned int size);
};

--
2.47.3