Changeset ae3d4f8 in mainline for uspace/lib/ext4/libext4_balloc.c

Timestamp:

2011-11-20T08:35:56Z (14 years ago)

Author:

Frantisek Princ <frantisek.princ@…>

Branches:

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

Children:

fe27eb4

Parents:

528e5b3

Message:

superblock update after block (de)allocation

File:

• uspace/lib/ext4/libext4_balloc.c (modified) (4 diffs)

uspace/lib/ext4/libext4_balloc.c

@@ -117 +117 @@
         uint32_t block_size = ext4_superblock_get_block_size(fs->superblock);
 
+        // Update superblock free blocks count
+        uint32_t sb_free_blocks = ext4_superblock_get_free_blocks_count(fs->superblock);
+        sb_free_blocks--;
+        ext4_superblock_set_free_blocks_count(fs->superblock, sb_free_blocks);
+
+        // Update inode blocks count
         uint64_t ino_blocks = ext4_inode_get_blocks_count(fs->superblock, inode_ref->inode);
         ino_blocks -= block_size / EXT4_INODE_BLOCK_SIZE;
@@ -122 +128 @@
         inode_ref->dirty = true;
 
+        // Update block group free blocks count
         uint32_t free_blocks = ext4_block_group_get_free_blocks_count(bg_ref->block_group);
         free_blocks++;
         ext4_block_group_set_free_blocks_count(bg_ref->block_group, free_blocks);
         bg_ref->dirty = true;
-
-        // TODO change free blocks count in superblock
 
         rc = ext4_filesystem_put_block_group_ref(bg_ref);
@@ -444 +449 @@
         uint32_t block_size = ext4_superblock_get_block_size(fs->superblock);
 
-        // TODO decrement superblock free blocks count
-        //uint32_t sb_free_blocks = ext4_superblock_get_free_blocks_count(sb);
-        //sb_free_blocks--;
-        //ext4_superblock_set_free_blocks_count(sb, sb_free_blocks);
-
+        // Update superblock free blocks count
+        uint32_t sb_free_blocks = ext4_superblock_get_free_blocks_count(fs->superblock);
+        sb_free_blocks--;
+        ext4_superblock_set_free_blocks_count(fs->superblock, sb_free_blocks);
+
+        // Update inode blocks (different block size!) count
         uint64_t ino_blocks = ext4_inode_get_blocks_count(fs->superblock, inode_ref->inode);
         ino_blocks += block_size / EXT4_INODE_BLOCK_SIZE;
@@ -454 +460 @@
         inode_ref->dirty = true;
 
+        // Update block group free blocks count
         uint32_t bg_free_blocks = ext4_block_group_get_free_blocks_count(bg_ref->block_group);
         bg_free_blocks--;