diff options
| -rw-r--r-- | fs/ext4/ext4_write.c | 110 |
1 files changed, 33 insertions, 77 deletions
diff --git a/fs/ext4/ext4_write.c b/fs/ext4/ext4_write.c index ba7ac75..913c46e 100644 --- a/fs/ext4/ext4_write.c +++ b/fs/ext4/ext4_write.c @@ -447,92 +447,48 @@ static int ext4fs_delete_file(int inodeno) no_blocks++; if (le32_to_cpu(inode.flags) & EXT4_EXTENTS_FL) { - struct ext2fs_node *node_inode = - zalloc(sizeof(struct ext2fs_node)); - if (!node_inode) - goto fail; - node_inode->data = ext4fs_root; - node_inode->ino = inodeno; - node_inode->inode_read = 0; - memcpy(&(node_inode->inode), &inode, sizeof(struct ext2_inode)); - - for (i = 0; i < no_blocks; i++) { - blknr = read_allocated_block(&(node_inode->inode), i); - bg_idx = blknr / blk_per_grp; - if (fs->blksz == 1024) { - remainder = blknr % blk_per_grp; - if (!remainder) - bg_idx--; - } - ext4fs_reset_block_bmap(blknr, fs->blk_bmaps[bg_idx], - bg_idx); - debug("EXT4_EXTENTS Block releasing %ld: %d\n", - blknr, bg_idx); - - ext4fs_bg_free_blocks_inc(&bgd[bg_idx]); - ext4fs_sb_free_blocks_inc(fs->sb); - - /* journal backup */ - if (prev_bg_bmap_idx != bg_idx) { - status = - ext4fs_devread( - (lbaint_t)le32_to_cpu(bgd[bg_idx].block_id) * - fs->sect_perblk, 0, - fs->blksz, journal_buffer); - if (status == 0) - goto fail; - if (ext4fs_log_journal(journal_buffer, - le32_to_cpu(bgd[bg_idx].block_id))) - goto fail; - prev_bg_bmap_idx = bg_idx; - } - } - if (node_inode) { - free(node_inode); - node_inode = NULL; - } + /* FIXME delete extent index blocks, i.e. eh_depth >= 1 */ + struct ext4_extent_header *eh = + (struct ext4_extent_header *) + inode.b.blocks.dir_blocks; + debug("del: dep=%d entries=%d\n", eh->eh_depth, eh->eh_entries); } else { - delete_single_indirect_block(&inode); delete_double_indirect_block(&inode); delete_triple_indirect_block(&inode); + } - /* read the block no allocated to a file */ - no_blocks = le32_to_cpu(inode.size) / fs->blksz; - if (le32_to_cpu(inode.size) % fs->blksz) - no_blocks++; - for (i = 0; i < no_blocks; i++) { - blknr = read_allocated_block(&inode, i); - bg_idx = blknr / blk_per_grp; - if (fs->blksz == 1024) { - remainder = blknr % blk_per_grp; - if (!remainder) - bg_idx--; - } - ext4fs_reset_block_bmap(blknr, fs->blk_bmaps[bg_idx], - bg_idx); - debug("ActualB releasing %ld: %d\n", blknr, bg_idx); + /* release data blocks */ + for (i = 0; i < no_blocks; i++) { + blknr = read_allocated_block(&inode, i); + bg_idx = blknr / blk_per_grp; + if (fs->blksz == 1024) { + remainder = blknr % blk_per_grp; + if (!remainder) + bg_idx--; + } + ext4fs_reset_block_bmap(blknr, fs->blk_bmaps[bg_idx], + bg_idx); + debug("EXT4 Block releasing %ld: %d\n", blknr, bg_idx); - ext4fs_bg_free_blocks_inc(&bgd[bg_idx]); - ext4fs_sb_free_blocks_inc(fs->sb); - /* journal backup */ - if (prev_bg_bmap_idx != bg_idx) { - memset(journal_buffer, '\0', fs->blksz); - status = ext4fs_devread( - (lbaint_t)le32_to_cpu(bgd[bg_idx].block_id) - * fs->sect_perblk, - 0, fs->blksz, - journal_buffer); - if (status == 0) - goto fail; - if (ext4fs_log_journal(journal_buffer, - le32_to_cpu(bgd[bg_idx].block_id))) - goto fail; - prev_bg_bmap_idx = bg_idx; - } + ext4fs_bg_free_blocks_inc(&bgd[bg_idx]); + ext4fs_sb_free_blocks_inc(fs->sb); + /* journal backup */ + if (prev_bg_bmap_idx != bg_idx) { + uint32_t bgd_blknr = le32_to_cpu(bgd[bg_idx].block_id); + status = ext4fs_devread((lbaint_t)bgd_blknr * + fs->sect_perblk, + 0, fs->blksz, + journal_buffer); + if (status == 0) + goto fail; + if (ext4fs_log_journal(journal_buffer, bgd_blknr)) + goto fail; + prev_bg_bmap_idx = bg_idx; } } + /* release inode */ /* from the inode no to blockno */ inodes_per_block = fs->blksz / fs->inodesz; ibmap_idx = inodeno / inode_per_grp; |