[LU-16613] Future: folio_batch BIO write path

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Assignee: Shaun Tancheff
• Reporter: Shaun Tancheff

Description

Prototype support for folio_batch support on page cache backed buffer I/O path.

Relies on a patched kernel to provide:

• generic_perform_batch_write
• aops->write_batch_begin and aops->write_patch_end
• filemap_dirty_folio_batched
• grab_cache_folios_fast