• Theodore Ts'o's avatar
    ext4: Use our own write_cache_pages() · 8e48dcfb
    Theodore Ts'o authored
    Make a copy of write_cache_pages() for the benefit of
    ext4_da_writepages().  This allows us to simplify the code some, and
    will allow us to further customize the code in future patches.
    
    There are some nasty hacks in write_cache_pages(), which Linus has
    (correctly) characterized as vile.  I've just copied it into
    write_cache_pages_da(), without trying to clean those bits up lest I
    break something in the ext4's delalloc implementation, which is a bit
    fragile right now.  This will allow Dave Chinner to clean up
    write_cache_pages() in mm/page-writeback.c, without worrying about
    breaking ext4.  Eventually write_cache_pages_da() will go away when I
    rewrite ext4's delayed allocation and create a general
    ext4_writepages() which is used for all of ext4's writeback.  Until
    now this is the lowest risk way to clean up the core
    write_cache_pages() function.
    Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
    Cc: Dave Chinner <david@fromorbit.com>
    8e48dcfb
inode.c 176 KB