mm/filemap: add filemap_range_uptodate

Move the complicated condition and the calculations out of
filemap_update_page() into its own function.

[[email protected]: unlock page before dropping its refcount]
  Link: https://lkml.kernel.org/r/[email protected]

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Reviewed-by: Kent Overstreet <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Cc: Miaohe Lin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions