• Ryusuke Konishi's avatar
    nilfs2: get rid of private page allocator · 1cb2d38c
    Ryusuke Konishi authored
    Previously, nilfs was cloning pages for mmapped region to freeze their
    data and ensure consistency of checksum during writeback cycles.  A
    private page allocator was used for this page cloning.  But, we no
    longer need to do that since clear_page_dirty_for_io function sets up
    pte so that vm_ops->page_mkwrite function is called right before the
    mmapped pages are modified and nilfs_page_mkwrite function can safely
    wait for the pages to be written back to disk.
    So, this stops making a copy of mmapped pages during writeback, and
    eliminates the private page allocation and deallocation functions from
    Signed-off-by: default avatarRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
segment.h 8.11 KB