[LU-11573] enable large IOs with ldiskfs

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Assignee: Alex Zhuravlev
• Reporter: Alex Zhuravlev

Description

osd-ldiskfs has hard-coded limit on number of pages in a single IO:

                       bio = bio_alloc(GFP_NOIO, min(BIO_MAX_PAGES,

where

#define BIO_MAX_PAGES		256

so it can't form IOs larger than 256 pages or 1MB.