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[victoriafalls] Move a superblock-based calculations to the block reader

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This commit is contained in:
Drew Galbraith 2023-07-06 09:58:26 -07:00
parent 52b4b273b7
commit 150bfd2fd4
5 changed files with 60 additions and 34 deletions
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10
sys/victoriafalls/fs/ext2/ext2_driver.cpp
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@ -28,17 +28,13 @@ glcr::ErrorCode Ext2Driver::ProbePartition() {
dbgln("Created by: %x", superblock->creator_os);
uint64_t num_block_groups =
superblock->blocks_count / superblock->blocks_per_group;
dbgln("\nReading %u blocks groups", num_block_groups);
uint64_t bgdt_bytes = sizeof(BlockGroupDescriptor) * num_block_groups;
uint64_t bgdt_block = (superblock->log_block_size == 0) ? 2 : 1;
ASSIGN_OR_RETURN(MappedMemoryRegion bgdt,
ext2_reader_.ReadBlocks(bgdt_block, bgdt_bytes))
ext2_reader_.ReadBlocks(ext2_reader_.BgdtBlockNum(),
ext2_reader_.BgdtBlockSize()));
BlockGroupDescriptor* bgds =
reinterpret_cast<BlockGroupDescriptor*>(bgdt.vaddr());
uint64_t num_block_groups = ext2_reader_.NumberOfBlockGroups();
for (uint64_t i = 0; i < num_block_groups; i++) {
dbgln("BGD %x", i);
dbgln("Block Bitmap: %x", bgds[i].block_bitmap);