search for: cater_factor

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2012 May 27
0
[RFC PATCH] Decrease Metadata Fragment Using A Caterpillar Band Method
...block based on finite compact blocks like a ca in theory, and thereby decrease the chances of fragment. Cons: 1 Acquire more space for metadata and not suit for user data, obviously. 2 Conflict with SSD wearing leveling optimizing, obviously. Implementation Notes: struct btrfs_fs_info has a field cater_factor to store the multiples from mount option, and struct btrfs_header has a u8 member, it''s left-hand 4 bits to record this block''s location index and right-hand 4 bits for multiples, such a combination indicates how many continuous blocks form a caterpillar and which slot this tree b...