Re: [PATCH 0/4] Use generic_file_read_iter() in hugetlbfs

[jane.chu@oracle.com]

On 7/7/2026 11:17 AM, Matthew Wilcox (Oracle) wrote:
> This set of patches are separated out from Jane's earlier series.
> https://lore.kernel.org/linux-mm/20260617172534.1740152-1-jane.chu@oracle.com/
> I feel that they represent a reasonable amount of change to send
> separately, although I'm going to keep looking at the rest of the sseries
> because I actually need it to do a further improvement that I'm working on.
> 
> I'm not 100% confident in all of this, so I'd appreciate feedback.
> I've run the libhugetlbfs test suite against it and observe no new
> failures, but I'm not sure it's thoroughly exercising the read() path,
> and I'm absolutely certain it's not exercising the memory-failure paths.

I can help testing memory-failure once I finish the stuff at hand.

-jane

> 
> Jane Chu (2):
>    filemap: add hwpoison handling to filemap_read()
>    hugetlbfs: replace hugetlbfs_read_iter() with generic_file_read_iter()
> 
> Matthew Wilcox (Oracle) (2):
>    hugetlbfs: Set mapping folio order
>    mm: Handle hugetlb correctly in is_page_hwpoison()
> 
>   fs/hugetlbfs/inode.c       | 122 ++++---------------------------------
>   include/linux/hugetlb.h    |   5 --
>   include/linux/page-flags.h |  24 ++++++--
>   mm/filemap.c               |  31 ++++++++++
>   mm/memory-failure.c        |   9 ++-
>   5 files changed, 66 insertions(+), 125 deletions(-)
>