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Kernel/Ext2: Extract common calculations to functions

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This also makes it easier to understand and reference where these
(sometimes rather arbitrary) calculations come from.

This also fixes a bug where group_index_from_block_index assumed 1KiB
blocks.
This commit is contained in:
kleines Filmröllchen
2023-07-18 15:09:48 +02:00
committed by Jelle Raaijmakers
parent 6a17a30e2e
commit cc1cb72fb5
2 changed files with 16 additions and 4 deletions
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2
Kernel/FileSystem/Ext2FS/FileSystem.h
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@@ -77,10 +77,12 @@ private:
virtual void flush_writes() override;
BlockIndex first_block_index() const;
BlockIndex first_block_of_block_group_descriptors() const;
ErrorOr<InodeIndex> allocate_inode(GroupIndex preferred_group = 0);
ErrorOr<Vector<BlockIndex>> allocate_blocks(GroupIndex preferred_group_index, size_t count);
GroupIndex group_index_from_inode(InodeIndex) const;
GroupIndex group_index_from_block_index(BlockIndex) const;
BlockIndex first_block_of_group(GroupIndex) const;
ErrorOr<bool> get_inode_allocation_state(InodeIndex) const;
ErrorOr<void> set_inode_allocation_state(InodeIndex, bool);