Ryusuke Konishi 26dfdd8e29 nilfs2: add read ahead mode to nilfs_btnode_submit_block ...

This adds mode argument to nilfs_btnode_submit_block() function and
allows it to issue a read-ahead request.

An optional submit_ptr argument is also added to store the actual
block address for which bio is sent.  submit_ptr is used for a series
of read-ahead requests, and helps to decide if each requested block is
continous to the previous one on disk.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>

2010-07-23 10:02:15 +09:00

8.5 KiB

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