static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
ssize_t ret;
if (f2fs_encrypted_inode(inode) &&
!fscrypt_has_encryption_key(inode) &&
fscrypt_get_encryption_info(inode))
return -EACCES;
inode_lock(inode);
ret = generic_write_checks(iocb, from);
if (ret > 0) {
ret = f2fs_preallocate_blocks(iocb, from);
if (!ret)
ret = __generic_file_write_iter(iocb, from);
}
inode_unlock(inode);
if (ret > 0) {
ssize_t err;
err = generic_write_sync(file, iocb->ki_pos - ret, ret);
if (err < 0)
ret = err;
}
return ret;
}
static ssize_t udf_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
{
ssize_t retval;
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
struct udf_inode_info *iinfo = UDF_I(inode);
int err;
mutex_lock(&inode->i_mutex);
retval = generic_write_checks(iocb, from);
if (retval <= 0)
goto out;
down_write(&iinfo->i_data_sem);
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
loff_t end = iocb->ki_pos + iov_iter_count(from);
if (inode->i_sb->s_blocksize <
(udf_file_entry_alloc_offset(inode) + end)) {
err = udf_expand_file_adinicb(inode);
if (err) {
mutex_unlock(&inode->i_mutex);
udf_debug("udf_expand_adinicb: err=%d\n", err);
return err;
}
} else {
iinfo->i_lenAlloc = max(end, inode->i_size);
up_write(&iinfo->i_data_sem);
}
} else
up_write(&iinfo->i_data_sem);
retval = __generic_file_write_iter(iocb, from);
out:
mutex_unlock(&inode->i_mutex);
if (retval > 0) {
mark_inode_dirty(inode);
err = generic_write_sync(file, iocb->ki_pos - retval, retval);
if (err < 0)
retval = err;
}
return retval;
}