Commits
Liu Xiang committed d454a27384f
ext4: fix prefetchw of NULL page In ext4_mpage_readpages(), if the parameter pages is not NULL, another parameter page is NULL. At the first time prefetchw(&page->flags) works on NULL. From second time, prefetchw(&page->flags) always works on the last consumed page. This might do little improvment for handling current page. So prefetchw() should be called while the page pointer has just been updated. Signed-off-by: Liu Xiang <liu.xiang6@zte.com.cn> Signed-off-by: Theodore Ts'o <tytso@mit.edu>