The compression code was using isize to limit the amount of data it
sent through zlib. But, it wasn't properly limiting the looping to
just the pages inside i_size. The end result was trying to compress
too many pages, including those that had not been setup and properly locked
down. This made the compression code oops while trying find_get_page on a
page that didn't exist.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
projects / kernel.git / commit