inode.c (fb01bfdac733f1925561eea52c60072f2fbcdc97) inode.c (1d1fe1ee02b9ac2660995b10e35dd41448fef011)
1/*
2 * linux/fs/ext4/inode.c
3 *
4 * Copyright (C) 1992, 1993, 1994, 1995
5 * Remy Card (card@masi.ibp.fr)
6 * Laboratoire MASI - Institut Blaise Pascal
7 * Universite Pierre et Marie Curie (Paris VI)
8 *

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2675 } else {
2676 return i_blocks;
2677 }
2678 } else {
2679 return le32_to_cpu(raw_inode->i_blocks_lo);
2680 }
2681}
2682
1/*
2 * linux/fs/ext4/inode.c
3 *
4 * Copyright (C) 1992, 1993, 1994, 1995
5 * Remy Card (card@masi.ibp.fr)
6 * Laboratoire MASI - Institut Blaise Pascal
7 * Universite Pierre et Marie Curie (Paris VI)
8 *

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2675 } else {
2676 return i_blocks;
2677 }
2678 } else {
2679 return le32_to_cpu(raw_inode->i_blocks_lo);
2680 }
2681}
2682
2683void ext4_read_inode(struct inode * inode)
2683struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
2684{
2685 struct ext4_iloc iloc;
2686 struct ext4_inode *raw_inode;
2684{
2685 struct ext4_iloc iloc;
2686 struct ext4_inode *raw_inode;
2687 struct ext4_inode_info *ei = EXT4_I(inode);
2687 struct ext4_inode_info *ei;
2688 struct buffer_head *bh;
2688 struct buffer_head *bh;
2689 struct inode *inode;
2690 long ret;
2689 int block;
2690
2691 int block;
2692
2693 inode = iget_locked(sb, ino);
2694 if (!inode)
2695 return ERR_PTR(-ENOMEM);
2696 if (!(inode->i_state & I_NEW))
2697 return inode;
2698
2699 ei = EXT4_I(inode);
2691#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
2692 ei->i_acl = EXT4_ACL_NOT_CACHED;
2693 ei->i_default_acl = EXT4_ACL_NOT_CACHED;
2694#endif
2695 ei->i_block_alloc_info = NULL;
2696
2700#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
2701 ei->i_acl = EXT4_ACL_NOT_CACHED;
2702 ei->i_default_acl = EXT4_ACL_NOT_CACHED;
2703#endif
2704 ei->i_block_alloc_info = NULL;
2705
2697 if (__ext4_get_inode_loc(inode, &iloc, 0))
2706 ret = __ext4_get_inode_loc(inode, &iloc, 0);
2707 if (ret < 0)
2698 goto bad_inode;
2699 bh = iloc.bh;
2700 raw_inode = ext4_raw_inode(&iloc);
2701 inode->i_mode = le16_to_cpu(raw_inode->i_mode);
2702 inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
2703 inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
2704 if(!(test_opt (inode->i_sb, NO_UID32))) {
2705 inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;

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2715 * the test is that same one that e2fsck uses
2716 * NeilBrown 1999oct15
2717 */
2718 if (inode->i_nlink == 0) {
2719 if (inode->i_mode == 0 ||
2720 !(EXT4_SB(inode->i_sb)->s_mount_state & EXT4_ORPHAN_FS)) {
2721 /* this inode is deleted */
2722 brelse (bh);
2708 goto bad_inode;
2709 bh = iloc.bh;
2710 raw_inode = ext4_raw_inode(&iloc);
2711 inode->i_mode = le16_to_cpu(raw_inode->i_mode);
2712 inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
2713 inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
2714 if(!(test_opt (inode->i_sb, NO_UID32))) {
2715 inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;

--- 9 unchanged lines hidden (view full) ---

2725 * the test is that same one that e2fsck uses
2726 * NeilBrown 1999oct15
2727 */
2728 if (inode->i_nlink == 0) {
2729 if (inode->i_mode == 0 ||
2730 !(EXT4_SB(inode->i_sb)->s_mount_state & EXT4_ORPHAN_FS)) {
2731 /* this inode is deleted */
2732 brelse (bh);
2733 ret = -ESTALE;
2723 goto bad_inode;
2724 }
2725 /* The only unlinked inodes we let through here have
2726 * valid i_mode and are being read by the orphan
2727 * recovery code: that's fine, we're about to complete
2728 * the process of deleting those. */
2729 }
2730 ei->i_flags = le32_to_cpu(raw_inode->i_flags);

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2753 * When mke2fs creates big inodes it does not zero out
2754 * the unused bytes above EXT4_GOOD_OLD_INODE_SIZE,
2755 * so ignore those first few inodes.
2756 */
2757 ei->i_extra_isize = le16_to_cpu(raw_inode->i_extra_isize);
2758 if (EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize >
2759 EXT4_INODE_SIZE(inode->i_sb)) {
2760 brelse (bh);
2734 goto bad_inode;
2735 }
2736 /* The only unlinked inodes we let through here have
2737 * valid i_mode and are being read by the orphan
2738 * recovery code: that's fine, we're about to complete
2739 * the process of deleting those. */
2740 }
2741 ei->i_flags = le32_to_cpu(raw_inode->i_flags);

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2764 * When mke2fs creates big inodes it does not zero out
2765 * the unused bytes above EXT4_GOOD_OLD_INODE_SIZE,
2766 * so ignore those first few inodes.
2767 */
2768 ei->i_extra_isize = le16_to_cpu(raw_inode->i_extra_isize);
2769 if (EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize >
2770 EXT4_INODE_SIZE(inode->i_sb)) {
2771 brelse (bh);
2772 ret = -EIO;
2761 goto bad_inode;
2762 }
2763 if (ei->i_extra_isize == 0) {
2764 /* The extra space is currently unused. Use it. */
2765 ei->i_extra_isize = sizeof(struct ext4_inode) -
2766 EXT4_GOOD_OLD_INODE_SIZE;
2767 } else {
2768 __le32 *magic = (void *)raw_inode +

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2806 init_special_inode(inode, inode->i_mode,
2807 old_decode_dev(le32_to_cpu(raw_inode->i_block[0])));
2808 else
2809 init_special_inode(inode, inode->i_mode,
2810 new_decode_dev(le32_to_cpu(raw_inode->i_block[1])));
2811 }
2812 brelse (iloc.bh);
2813 ext4_set_inode_flags(inode);
2773 goto bad_inode;
2774 }
2775 if (ei->i_extra_isize == 0) {
2776 /* The extra space is currently unused. Use it. */
2777 ei->i_extra_isize = sizeof(struct ext4_inode) -
2778 EXT4_GOOD_OLD_INODE_SIZE;
2779 } else {
2780 __le32 *magic = (void *)raw_inode +

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2818 init_special_inode(inode, inode->i_mode,
2819 old_decode_dev(le32_to_cpu(raw_inode->i_block[0])));
2820 else
2821 init_special_inode(inode, inode->i_mode,
2822 new_decode_dev(le32_to_cpu(raw_inode->i_block[1])));
2823 }
2824 brelse (iloc.bh);
2825 ext4_set_inode_flags(inode);
2814 return;
2826 unlock_new_inode(inode);
2827 return inode;
2815
2816bad_inode:
2828
2829bad_inode:
2817 make_bad_inode(inode);
2818 return;
2830 iget_failed(inode);
2831 return ERR_PTR(ret);
2819}
2820
2821static int ext4_inode_blocks_set(handle_t *handle,
2822 struct ext4_inode *raw_inode,
2823 struct ext4_inode_info *ei)
2824{
2825 struct inode *inode = &(ei->vfs_inode);
2826 u64 i_blocks = inode->i_blocks;

--- 631 unchanged lines hidden --- 		2832}
2833
2834static int ext4_inode_blocks_set(handle_t *handle,
2835 struct ext4_inode *raw_inode,
2836 struct ext4_inode_info *ei)
2837{
2838 struct inode *inode = &(ei->vfs_inode);
2839 u64 i_blocks = inode->i_blocks;

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