Changeset ca3d77a in mainline for uspace/lib/ext4/libext4_filesystem.c

Timestamp:

2012-01-28T10:51:56Z (13 years ago)

Author:

Frantisek Princ <frantisek.princ@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

7c506ced

Parents:

fe56c08a

Message:

some TODO's solved + removed debugging messages

File:

• uspace/lib/ext4/libext4_filesystem.c (modified) (6 diffs)

uspace/lib/ext4/libext4_filesystem.c

@@ -284 +284 @@
 
         // TODO extents, dir_index etc...
+
         rc = ext4_filesystem_get_inode_ref(fs, index, inode_ref);
         if (rc != EOK) {
@@ -325 +326 @@
         int rc;
 
-        // release all indirect blocks
+        // release all indirect (no data) blocks
 
         // 1) Single indirect
@@ -332 +333 @@
                 rc = ext4_balloc_free_block(fs, inode_ref, fblock);
                 if (rc != EOK) {
-                        // TODO error
+                        return rc;
                 }
 
@@ -443 +444 @@
                 ext4_inode_ref_t *inode_ref, aoff64_t new_size)
 {
+        int rc;
+
         if (! ext4_inode_can_truncate(fs->superblock, inode_ref->inode)) {
                 // Unable to truncate
@@ -454 +457 @@
         }
 
+        // It's not suppported to make the larger file
         if (old_size < new_size) {
-                // Currently not supported to expand the file
-                // TODO
-                EXT4FS_DBG("trying to expand the file");
                 return EINVAL;
         }
@@ -463 +464 @@
         aoff64_t size_diff = old_size - new_size;
         uint32_t block_size  = ext4_superblock_get_block_size(fs->superblock);
-        uint32_t blocks_count = size_diff / block_size;
+        uint32_t diff_blocks_count = size_diff / block_size;
         if (size_diff % block_size != 0) {
-                blocks_count++;
-        }
-
-        uint32_t total_blocks = old_size / block_size;
+                diff_blocks_count++;
+        }
+
+        uint32_t old_blocks_count = old_size / block_size;
         if (old_size % block_size != 0) {
-                total_blocks++;
+                old_blocks_count++;
         }
 
         // starting from 1 because of logical blocks are numbered from 0
-        for (uint32_t i = 1; i <= blocks_count; ++i) {
-                // TODO check retval
-                ext4_filesystem_release_inode_block(fs, inode_ref, total_blocks - i);
+        for (uint32_t i = 1; i <= diff_blocks_count; ++i) {
+                rc = ext4_filesystem_release_inode_block(fs, inode_ref, old_blocks_count - i);
+                if (rc != EOK) {
+                        return rc;
+                }
         }