On Wed, Mar 29, 2023 at 10:05:59AM -0700, Johannes Thumshirn wrote:

The zram writeback code uses bio_add_page() to add a page to a newly
created bio. bio_add_page() can fail, but the return value is never
checked.

Use __bio_add_page() as adding a single page to a newly created bio is
guaranteed to succeed.

This brings us a step closer to marking bio_add_page() as __must_check.

Signed-off-by: Johannes Thumshirn <redacted>

Looks good,
Reviewed-by: Pankaj Raghav <redacted>