[Cluster-devel] [PATCH 0/6] gfs2/buffer folio changes

[Bob Peterson]

On 5/16/23 10:24 PM, Matthew Wilcox (Oracle) wrote:
> This kind of started off as a gfs2 patch series, then became entwined
> with buffer heads once I realised that gfs2 was the only remaining
> caller of __block_write_full_page().  For those not in the gfs2 world,
> the big point of this series is that block_write_full_page() should now
> handle large folios correctly.
> 
> It probably makes most sense to take this through Andrew's tree, once
> enough people have signed off on it?
> 
> Matthew Wilcox (Oracle) (6):
>    gfs2: Use a folio inside gfs2_jdata_writepage()
>    gfs2: Pass a folio to __gfs2_jdata_write_folio()
>    gfs2: Convert gfs2_write_jdata_page() to gfs2_write_jdata_folio()
>    buffer: Convert __block_write_full_page() to
>      __block_write_full_folio()
>    gfs2: Support ludicrously large folios in gfs2_trans_add_databufs()
>    buffer: Make block_write_full_page() handle large folios correctly
> 
>   fs/buffer.c                 | 75 ++++++++++++++++++-------------------
>   fs/gfs2/aops.c              | 66 ++++++++++++++++----------------
>   fs/gfs2/aops.h              |  2 +-
>   fs/ntfs/aops.c              |  2 +-
>   fs/reiserfs/inode.c         |  2 +-
>   include/linux/buffer_head.h |  2 +-
>   6 files changed, 75 insertions(+), 74 deletions(-)
> 
Hi Matthew,

I recently started looking into doing this, too, so this is apropos.
I'll give it a careful review and some testing. The jdata stuff in gfs2 
is very touchy, but this looks like a step in the right direction.
I'll let you know how it fares.

Regards,

Bob Peterson