ref: 698ceba63af13eaa4b4a29f7b03edefc8cc251db
parent: b768b83c4ebe8e3320cbc677c45c2ddbcde24e70
author: ngkaho1234 <[email protected]>
date: Mon Oct 19 09:38:15 EDT 2015
FIX: ext4_extent_remove_space deallocating the wrong block.
--- a/lwext4/ext4_extent_full.c
+++ b/lwext4/ext4_extent_full.c
@@ -1321,21 +1321,22 @@
to_le32(ex->first_block) <= to) {int32_t new_len = 0;
int unwritten;
- ext4_fsblk_t start, new_start;
+ ext4_lblk_t start, new_start;
new_start = start = to_le32(ex->first_block);
len = ext4_ext_get_actual_len(ex);
if (start < from) {- start = from;
len -= from - start;
new_len = from - start;
+ start = from;
start_ex++;
}
- if (start + len - 1 > to) {- len -= start + len - 1 - to;
- new_len = start + len - 1 - to;
- new_start += to + 1;
- ex2 = ex;
- }
+ /* TODO: More complicated truncate operation. */
+ /*if (start + len - 1 > to) {*/+ /*len -= start + len - 1 - to;*/
+ /*new_len = start + len - 1 - to;*/
+ /*new_start = to + 1;*/
+ /*ex2 = ex;*/
+ /*}*/
ext4_ext_remove_blocks(inode_ref, ex, start, start + len - 1);
ex->first_block = to_le32(new_start);
@@ -1375,7 +1376,7 @@
if (!to_le16(path->header->entries_count))
return false;
- if (path->index > EXT_LAST_INDEX(path->header))
+ if (path->index >= EXT_LAST_INDEX(path->header))
return false;
if (to_le32(path->index->first_block) > to)