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da019954dd
This adds delete functions for data blocks of metadata files using bitmap
based allocator. nilfs_palloc_delete_entry_block() deletes an entry block
(e.g. block storing dat entries), and nilfs_palloc_delete_bitmap_block()
deletes a bitmap block, respectively.
These helpers are intended to be used in the successive change on
deallocator of block addresses ("nilfs2: free unused dat file blocks
during garbage collection").
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>