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Diffstat (limited to 'fs/ext4/ext4_write.c')
-rw-r--r--fs/ext4/ext4_write.c110
1 files changed, 33 insertions, 77 deletions
diff --git a/fs/ext4/ext4_write.c b/fs/ext4/ext4_write.c
index ba7ac753b5..913c46e89f 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;