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    Subject[PATCH v3 0/6] netfs, 9p, afs, ceph: Support folios, at least partially
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    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 also contains a patch to split afs symlink readpage from afs file
    readpage to aid with foliation and a patch to convert 9p to netfslib to
    reduce the amount of foliation needed there.

    Changes
    =======
    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/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
    ---
    David Howells (6):
    afs: Sort out symlink reading
    9p: Convert to using the netfs helper lib to do reads and caching
    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
    netfs, 9p, afs, ceph: Use folios
    afs: Use folios in directory handling


    fs/9p/Kconfig | 1 +
    fs/9p/cache.c | 137 ---------------
    fs/9p/cache.h | 97 +----------
    fs/9p/v9fs.h | 9 +
    fs/9p/vfs_addr.c | 253 +++++++++++++--------------
    fs/9p/vfs_file.c | 29 ++--
    fs/afs/dir.c | 229 ++++++++++--------------
    fs/afs/dir_edit.c | 154 +++++++++--------
    fs/afs/file.c | 70 ++++----
    fs/afs/internal.h | 46 ++---
    fs/afs/write.c | 346 ++++++++++++++++++-------------------
    fs/ceph/addr.c | 80 +++++----
    fs/netfs/read_helper.c | 165 +++++++++---------
    include/linux/netfs.h | 12 +-
    include/linux/pagemap.h | 33 ++++
    include/trace/events/afs.h | 21 +--
    mm/page-writeback.c | 2 +-
    17 files changed, 738 insertions(+), 946 deletions(-)


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