[PATCH v4 0/5] netfs, 9p, afs, ceph: Support folios, at least partially

[Marc Dionne]

On Tue, Nov 9, 2021 at 5:28 PM David Howells <dhowells at redhat.com> wrote:
>
>
> Here's a set of patches to convert netfs, 9p and afs to use folios and to
> provide sufficient conversion for ceph that it can continue to use the
> netfs library.  Jeff Layton is working on fully converting ceph.
>
> This has been rebased on to the 9p merge in Linus's tree[5] so that it has
> access to both the 9p conversion to fscache and folios.
>
> Changes
> =======
> ver #4:
>  - Detached and sent the afs symlink split patch separately.
>  - Handed the 9p netfslibisation patch off to Dominique Martinet.
>  - Added a patch to foliate page_endio().
>  - Fixed a bug in afs_redirty_page() whereby it didn't set the next page
>    index in the loop and returned too early.
>  - Simplified a check in v9fs_vfs_write_folio_locked()[4].
>  - Undid a change to afs_symlink_readpage()[4].
>  - Used offset_in_folio() in afs_write_end()[4].
>  - Rebased on 9p-folio merge upstream[5].
>
> ver #3:
>  - Rebased on upstream as folios have been pulled.
>  - Imported a patch to convert 9p to netfslib from my
>    fscache-remove-old-api branch[3].
>  - Foliated netfslib.
>
> ver #2:
>  - Reorder the patches to put both non-folio afs patches to the front.
>  - Use page_offset() rather than manual calculation[1].
>  - Fix folio_inode() to directly access the inode[2].
>
> David
>
> Link: https://lore.kernel.org/r/YST/0e92OdSH0zjg@casper.infradead.org/ [1]
> Link: https://lore.kernel.org/r/YST8OcVNy02Rivbm@casper.infradead.org/ [2]
> Link: https://lore.kernel.org/r/163551653404.1877519.12363794970541005441.stgit@warthog.procyon.org.uk/ [3]
> Link: https://lore.kernel.org/r/YYKa3bfQZxK5/wDN@casper.infradead.org/ [4]
> Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f89ce84bc33330607a782e47a8b19406ed109b15 [5]
> Link: https://lore.kernel.org/r/2408234.1628687271@warthog.procyon.org.uk/ # v0
> Link: https://lore.kernel.org/r/162981147473.1901565.1455657509200944265.stgit@warthog.procyon.org.uk/ # v1
> Link: https://lore.kernel.org/r/163005740700.2472992.12365214290752300378.stgit@warthog.procyon.org.uk/ # v2
> Link: https://lore.kernel.org/r/163584174921.4023316.8927114426959755223.stgit@warthog.procyon.org.uk>/ # v3
> ---
> David Howells (5):
>       folio: Add a function to change the private data attached to a folio
>       folio: Add a function to get the host inode for a folio
>       folio: Add replacements for page_endio()
>       netfs, 9p, afs, ceph: Use folios
>       afs: Use folios in directory handling
>
>
>  fs/9p/vfs_addr.c           |  83 +++++----
>  fs/9p/vfs_file.c           |  20 +--
>  fs/afs/dir.c               | 229 ++++++++++--------------
>  fs/afs/dir_edit.c          | 154 ++++++++--------
>  fs/afs/file.c              |  68 ++++----
>  fs/afs/internal.h          |  46 ++---
>  fs/afs/write.c             | 347 ++++++++++++++++++-------------------
>  fs/ceph/addr.c             |  80 +++++----
>  fs/netfs/read_helper.c     | 165 +++++++++---------
>  include/linux/netfs.h      |  12 +-
>  include/linux/pagemap.h    |  23 ++-
>  include/trace/events/afs.h |  21 +--
>  mm/filemap.c               |  64 ++++---
>  mm/page-writeback.c        |   2 +-
>  14 files changed, 666 insertions(+), 648 deletions(-)
>
>
>
> Tested-by: Jeff Layton <jlayton at kernel.org>
> Tested-by: Dominique Martinet <asmadeus at codewreck.org>
> Tested-by: kafs-testing at auristor.com

The updated series passed our automated test suite, which is mostly
targeted afs testing, but with a framework that also relies on 9p.

So you can reapply:
Tested-by: kafs-testing at auristor.com

Marc