diff options
Diffstat (limited to 'fs/ecryptfs/mmap.c')
-rw-r--r-- | fs/ecryptfs/mmap.c | 91 |
1 files changed, 1 insertions, 90 deletions
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c index 06843d24f239..0af3aa3b4b3e 100644 --- a/fs/ecryptfs/mmap.c +++ b/fs/ecryptfs/mmap.c | |||
@@ -528,90 +528,6 @@ out: | |||
528 | return rc; | 528 | return rc; |
529 | } | 529 | } |
530 | 530 | ||
531 | static int | ||
532 | process_new_file(struct ecryptfs_crypt_stat *crypt_stat, | ||
533 | struct file *file, struct inode *inode) | ||
534 | { | ||
535 | struct page *header_page; | ||
536 | const struct address_space_operations *lower_a_ops; | ||
537 | struct inode *lower_inode; | ||
538 | struct file *lower_file; | ||
539 | char *header_virt; | ||
540 | int rc = 0; | ||
541 | int current_header_page = 0; | ||
542 | int header_pages; | ||
543 | int more_header_data_to_be_written = 1; | ||
544 | |||
545 | lower_inode = ecryptfs_inode_to_lower(inode); | ||
546 | lower_file = ecryptfs_file_to_lower(file); | ||
547 | lower_a_ops = lower_inode->i_mapping->a_ops; | ||
548 | header_pages = ((crypt_stat->header_extent_size | ||
549 | * crypt_stat->num_header_extents_at_front) | ||
550 | / PAGE_CACHE_SIZE); | ||
551 | BUG_ON(header_pages < 1); | ||
552 | while (current_header_page < header_pages) { | ||
553 | rc = ecryptfs_grab_and_map_lower_page(&header_page, | ||
554 | &header_virt, | ||
555 | lower_inode, | ||
556 | current_header_page); | ||
557 | if (rc) { | ||
558 | ecryptfs_printk(KERN_ERR, "grab_cache_page for " | ||
559 | "header page [%d] failed; rc = [%d]\n", | ||
560 | current_header_page, rc); | ||
561 | goto out; | ||
562 | } | ||
563 | rc = lower_a_ops->prepare_write(lower_file, header_page, 0, | ||
564 | PAGE_CACHE_SIZE); | ||
565 | if (rc) { | ||
566 | ecryptfs_printk(KERN_ERR, "Error preparing to write " | ||
567 | "header page out; rc = [%d]\n", rc); | ||
568 | goto out; | ||
569 | } | ||
570 | memset(header_virt, 0, PAGE_CACHE_SIZE); | ||
571 | if (more_header_data_to_be_written) { | ||
572 | rc = ecryptfs_write_headers_virt(header_virt, | ||
573 | crypt_stat, | ||
574 | file->f_dentry); | ||
575 | if (rc) { | ||
576 | ecryptfs_printk(KERN_WARNING, "Error " | ||
577 | "generating header; rc = " | ||
578 | "[%d]\n", rc); | ||
579 | rc = -EIO; | ||
580 | memset(header_virt, 0, PAGE_CACHE_SIZE); | ||
581 | ecryptfs_unmap_and_release_lower_page( | ||
582 | header_page); | ||
583 | goto out; | ||
584 | } | ||
585 | if (current_header_page == 0) | ||
586 | memset(header_virt, 0, 8); | ||
587 | more_header_data_to_be_written = 0; | ||
588 | } | ||
589 | rc = lower_a_ops->commit_write(lower_file, header_page, 0, | ||
590 | PAGE_CACHE_SIZE); | ||
591 | ecryptfs_unmap_and_release_lower_page(header_page); | ||
592 | if (rc < 0) { | ||
593 | ecryptfs_printk(KERN_ERR, | ||
594 | "Error commiting header page write; " | ||
595 | "rc = [%d]\n", rc); | ||
596 | break; | ||
597 | } | ||
598 | current_header_page++; | ||
599 | } | ||
600 | if (rc >= 0) { | ||
601 | rc = 0; | ||
602 | ecryptfs_printk(KERN_DEBUG, "lower_inode->i_blocks = " | ||
603 | "[0x%.16x]\n", lower_inode->i_blocks); | ||
604 | i_size_write(inode, 0); | ||
605 | lower_inode->i_mtime = lower_inode->i_ctime = CURRENT_TIME; | ||
606 | mark_inode_dirty_sync(inode); | ||
607 | } | ||
608 | ecryptfs_printk(KERN_DEBUG, "Clearing ECRYPTFS_NEW_FILE flag in " | ||
609 | "crypt_stat at memory location [%p]\n", crypt_stat); | ||
610 | ECRYPTFS_CLEAR_FLAG(crypt_stat->flags, ECRYPTFS_NEW_FILE); | ||
611 | out: | ||
612 | return rc; | ||
613 | } | ||
614 | |||
615 | /** | 531 | /** |
616 | * ecryptfs_commit_write | 532 | * ecryptfs_commit_write |
617 | * @file: The eCryptfs file object | 533 | * @file: The eCryptfs file object |
@@ -643,12 +559,7 @@ static int ecryptfs_commit_write(struct file *file, struct page *page, | |||
643 | if (ECRYPTFS_CHECK_FLAG(crypt_stat->flags, ECRYPTFS_NEW_FILE)) { | 559 | if (ECRYPTFS_CHECK_FLAG(crypt_stat->flags, ECRYPTFS_NEW_FILE)) { |
644 | ecryptfs_printk(KERN_DEBUG, "ECRYPTFS_NEW_FILE flag set in " | 560 | ecryptfs_printk(KERN_DEBUG, "ECRYPTFS_NEW_FILE flag set in " |
645 | "crypt_stat at memory location [%p]\n", crypt_stat); | 561 | "crypt_stat at memory location [%p]\n", crypt_stat); |
646 | rc = process_new_file(crypt_stat, file, inode); | 562 | ECRYPTFS_CLEAR_FLAG(crypt_stat->flags, ECRYPTFS_NEW_FILE); |
647 | if (rc) { | ||
648 | ecryptfs_printk(KERN_ERR, "Error processing new " | ||
649 | "file; rc = [%d]\n", rc); | ||
650 | goto out; | ||
651 | } | ||
652 | } else | 563 | } else |
653 | ecryptfs_printk(KERN_DEBUG, "Not a new file\n"); | 564 | ecryptfs_printk(KERN_DEBUG, "Not a new file\n"); |
654 | ecryptfs_printk(KERN_DEBUG, "Calling fill_zeros_to_end_of_page" | 565 | ecryptfs_printk(KERN_DEBUG, "Calling fill_zeros_to_end_of_page" |