diff options
Diffstat (limited to 'fs/ext4/file.c')
| -rw-r--r-- | fs/ext4/file.c | 35 |
1 files changed, 25 insertions, 10 deletions
diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 0613c256c..bc313ac5d 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -192,15 +192,27 @@ out: } #ifdef CONFIG_FS_DAX +static void ext4_end_io_unwritten(struct buffer_head *bh, int uptodate) +{ + struct inode *inode = bh->b_assoc_map->host; + /* XXX: breaks on 32-bit > 16GB. Is that even supported? */ + loff_t offset = (loff_t)(uintptr_t)bh->b_private << inode->i_blkbits; + int err; + if (!uptodate) + return; + WARN_ON(!buffer_unwritten(bh)); + err = ext4_convert_unwritten_extents(NULL, inode, offset, bh->b_size); +} + static int ext4_dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { - return dax_fault(vma, vmf, ext4_get_block); + return dax_fault(vma, vmf, ext4_get_block, ext4_end_io_unwritten); /* Is this the right get_block? */ } static int ext4_dax_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) { - return dax_mkwrite(vma, vmf, ext4_get_block); + return dax_mkwrite(vma, vmf, ext4_get_block, ext4_end_io_unwritten); } static const struct vm_operations_struct ext4_dax_vm_ops = { @@ -223,9 +235,11 @@ static int ext4_file_mmap(struct file *file, struct vm_area_struct *vma) struct inode *inode = file->f_mapping->host; if (ext4_encrypted_inode(inode)) { - int err = ext4_generate_encryption_key(inode); + int err = ext4_get_encryption_info(inode); if (err) return 0; + if (ext4_encryption_info(inode) == NULL) + return -ENOKEY; } file_accessed(file); if (IS_DAX(file_inode(file))) { @@ -278,6 +292,13 @@ static int ext4_file_open(struct inode * inode, struct file * filp) ext4_journal_stop(handle); } } + if (ext4_encrypted_inode(inode)) { + ret = ext4_get_encryption_info(inode); + if (ret) + return -EACCES; + if (ext4_encryption_info(inode) == NULL) + return -ENOKEY; + } /* * Set up the jbd2_inode if we are opening the inode for * writing and the journal is present @@ -287,13 +308,7 @@ static int ext4_file_open(struct inode * inode, struct file * filp) if (ret < 0) return ret; } - ret = dquot_file_open(inode, filp); - if (!ret && ext4_encrypted_inode(inode)) { - ret = ext4_generate_encryption_key(inode); - if (ret) - ret = -EACCES; - } - return ret; + return dquot_file_open(inode, filp); } /* |