> +static int pmem_pagemap_memory_failure(struct dev_pagemap *pgmap,
> + unsigned long pfn, int flags)
> +{
> + struct pmem_device *pdev;
> + struct gendisk *disk;
> + loff_t disk_offset;
> + int rc = 0;
> + unsigned long size = page_size(pfn_to_page(pfn));
> +
> +
Call the ->memory_failure() which is implemented by pmem driver, in
order to finally notify filesystem to handle the corrupted data. The
handler which collects and kills processes are moved into
mf_dax_mapping_kill_procs(), which will be called by filesystem.
Keep the old handler in order to roll
