On 25 Feb 2020, at 16:48, Matthew Wilcox wrote:

From: "Matthew Wilcox (Oracle)" <willy@infradead.org>

The word 'offset' is used ambiguously to mean 'byte offset within
a page', 'byte offset from the start of the file' and 'page offset
from the start of the file'.  Use 'index' to mean 'page offset
from the start of the file' throughout the readahead code.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

Looks good to me.

Reviewed-by: Zi Yan <ziy@nvidia.com>

—
Best Regards,
Yan Zi