[GIT PULL] 9p for 5.20 (or 6.0)

[Dominique Martinet <asmadeus@codewreck.org>]

Hi Linus,


Note this will conflict with Al Viro's "9p: convert to advancing variant
of iov_iter_get_pages_alloc()" that I believe he hasn't sent yet, but it
should be simple enough to untangle.

I also had a few more improvements tested locally I forgot to push to
-next, so I guess they'll wait for next cycle :/ Sorry Christian...



The following changes since commit 03c765b0e3b4cb5063276b086c76f7a612856a9a:

  Linux 5.19-rc4 (2022-06-26 14:22:10 -0700)

are available in the Git repository at:

  https://github.com/martinetd/linux tags/9p-for-5.20

for you to fetch changes up to aa7aeee169480e98cf41d83c01290a37e569be6d:

  net/9p: Initialize the iounit field during fid creation (2022-07-16 07:16:55 +0900)

----------------------------------------------------------------
9p-for-5.20

- a couple of fixes
- add a tracepoint for fid refcounting
- some cleanup/followup on fid lookup
- some cleanup around req refcounting

----------------------------------------------------------------
Dominique Martinet (4):
      9p fid refcount: add p9_fid_get/put wrappers
      9p fid refcount: add a 9p_fid_ref tracepoint
      9p fid refcount: cleanup p9_fid_put calls
      9p: roll p9_tag_remove into p9_req_put

Hangyu Hua (1):
      net: 9p: fix refcount leak in p9_read_work() error handling

Kent Overstreet (2):
      9p: Drop kref usage
      9p: Add client parameter to p9_req_put()

Tyler Hicks (5):
      9p: Track the root fid with its own variable during lookups
      9p: Make the path walk logic more clear about when cloning is required
      9p: Remove unnecessary variable for old fids while walking from d_parent
      9p: Fix minor typo in code comment
      net/9p: Initialize the iounit field during fid creation

Yang Li (1):
      9p: Fix some kernel-doc comments

 fs/9p/fid.c               |  61 ++++++++++++++-----------
 fs/9p/fid.h               |   6 +--
 fs/9p/vfs_addr.c          |   4 +-
 fs/9p/vfs_dentry.c        |   4 +-
 fs/9p/vfs_dir.c           |   2 +-
 fs/9p/vfs_file.c          |   9 ++--
 fs/9p/vfs_inode.c         |  89 ++++++++++++++++---------------------
 fs/9p/vfs_inode_dotl.c    |  82 +++++++++++++---------------------
 fs/9p/vfs_super.c         |   8 ++--
 fs/9p/xattr.c             |   8 ++--
 include/net/9p/client.h   |  49 ++++++++++++++++++--
 include/trace/events/9p.h |  48 ++++++++++++++++++++
 net/9p/client.c           | 168 +++++++++++++++++++++++++++++++++++----------------------------------
 net/9p/trans_fd.c         |  13 +++---
 net/9p/trans_rdma.c       |   2 +-
 net/9p/trans_virtio.c     |   4 +-
 net/9p/trans_xen.c        |   2 +-
 17 files changed, 314 insertions(+), 245 deletions(-)

-- 
Dominique