diff options
Diffstat (limited to 'fs/ext4/extents.c')
-rw-r--r-- | fs/ext4/extents.c | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 34ba222..6fcb375 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -4724,60 +4724,3 @@ int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, return error; } - -/* - * Migrate a simple extent-based inode to use the i_blocks[] array - */ -int ext4_ind_migrate(struct inode *inode) -{ - struct ext4_extent_header *eh; - struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es; - struct ext4_inode_info *ei = EXT4_I(inode); - struct ext4_extent *ex; - unsigned int i, len; - ext4_fsblk_t blk; - handle_t *handle; - int ret; - - if (!EXT4_HAS_INCOMPAT_FEATURE(inode->i_sb, - EXT4_FEATURE_INCOMPAT_EXTENTS) || - (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) - return -EINVAL; - - handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1); - if (IS_ERR(handle)) - return PTR_ERR(handle); - - down_write(&EXT4_I(inode)->i_data_sem); - ret = ext4_ext_check_inode(inode); - if (ret) - goto errout; - - eh = ext_inode_hdr(inode); - ex = EXT_FIRST_EXTENT(eh); - if (ext4_blocks_count(es) > EXT4_MAX_BLOCK_FILE_PHYS || - eh->eh_depth != 0 || le16_to_cpu(eh->eh_entries) > 1) { - ret = -EOPNOTSUPP; - goto errout; - } - if (eh->eh_entries == 0) - blk = len = 0; - else { - len = le16_to_cpu(ex->ee_len); - blk = ext4_ext_pblock(ex); - if (len > EXT4_NDIR_BLOCKS) { - ret = -EOPNOTSUPP; - goto errout; - } - } - - ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS); - memset(ei->i_data, 0, sizeof(ei->i_data)); - for (i=0; i < len; i++) - ei->i_data[i] = cpu_to_le32(blk++); - ext4_mark_inode_dirty(handle, inode); -errout: - ext4_journal_stop(handle); - up_write(&EXT4_I(inode)->i_data_sem); - return ret; -} |