On 07/18, Zhiguo Niu wrote:
> This is a supplement to commit 6d1451bf7f84 ("f2fs: fix to use per-inode
> maxbytes")
> for some missed cases, also cleanup redundant code in f2fs_llseek.
>
> Cc: Chengguang Xu <[email protected]>
> Signed-off-by: Zhiguo Niu <[email protected]>
> ---
> fs/f2fs/data.c | 2 +-
> fs/f2fs/file.c | 7 ++-----
> fs/f2fs/verity.c | 5 +++--
> 3 files changed, 6 insertions(+), 8 deletions(-)
>
> diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
> index 6457e5b..1d41d99 100644
> --- a/fs/f2fs/data.c
> +++ b/fs/f2fs/data.c
> @@ -2064,7 +2064,7 @@ int f2fs_fiemap(struct inode *inode, struct
> fiemap_extent_info *fieinfo,
> static inline loff_t f2fs_readpage_limit(struct inode *inode)
> {
> if (IS_ENABLED(CONFIG_FS_VERITY) && IS_VERITY(inode))
> - return inode->i_sb->s_maxbytes;
> + return max_file_blocks(inode) << F2FS_BLKSIZE_BITS;
F2FS_BLK_TO_BYTES(max_file_blocks(inode))?
>
> return i_size_read(inode);
> }
> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> index effbaa6..e6411d5 100644
> --- a/fs/f2fs/file.c
> +++ b/fs/f2fs/file.c
> @@ -431,7 +431,7 @@ static bool __found_offset(struct address_space *mapping,
> static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
> {
> struct inode *inode = file->f_mapping->host;
> - loff_t maxbytes = inode->i_sb->s_maxbytes;
> + loff_t maxbytes = max_file_blocks(inode) << F2FS_BLKSIZE_BITS;
> struct dnode_of_data dn;
> pgoff_t pgofs, end_offset;
> loff_t data_ofs = offset;
> @@ -513,10 +513,7 @@ static loff_t f2fs_seek_block(struct file *file, loff_t
> offset, int whence)
> static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence)
> {
> struct inode *inode = file->f_mapping->host;
> - loff_t maxbytes = inode->i_sb->s_maxbytes;
> -
> - if (f2fs_compressed_file(inode))
> - maxbytes = max_file_blocks(inode) << F2FS_BLKSIZE_BITS;
> + loff_t maxbytes = max_file_blocks(inode) << F2FS_BLKSIZE_BITS;
>
> switch (whence) {
> case SEEK_SET:
> diff --git a/fs/f2fs/verity.c b/fs/f2fs/verity.c
> index f7bb0c5..7fc787c 100644
> --- a/fs/f2fs/verity.c
> +++ b/fs/f2fs/verity.c
> @@ -74,7 +74,7 @@ static int pagecache_write(struct inode *inode, const void
> *buf, size_t count,
> struct address_space *mapping = inode->i_mapping;
> const struct address_space_operations *aops = mapping->a_ops;
>
> - if (pos + count > inode->i_sb->s_maxbytes)
> + if (pos + count > (max_file_blocks(inode) << F2FS_BLKSIZE_BITS))
> return -EFBIG;
>
> while (count) {
> @@ -237,7 +237,8 @@ static int f2fs_get_verity_descriptor(struct inode
> *inode, void *buf,
> pos = le64_to_cpu(dloc.pos);
>
> /* Get the descriptor */
> - if (pos + size < pos || pos + size > inode->i_sb->s_maxbytes ||
> + if (pos + size < pos ||
> + pos + size > (max_file_blocks(inode) << F2FS_BLKSIZE_BITS) ||
> pos < f2fs_verity_metadata_pos(inode) || size > INT_MAX) {
> f2fs_warn(F2FS_I_SB(inode), "invalid verity xattr");
> f2fs_handle_error(F2FS_I_SB(inode),
> --
> 1.9.1
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