Merge tag '9p-for-6.18-rc1' of https://github.com/martinetd/linux

Merge tag '9p-for-6.18-rc1' of https://github.com/martinetd/linux

Pull 9p updates from Dominique Martinet:
 "A bunch of unrelated fixes:

   - polling fix for trans fd that ought to have been fixed otherwise
     back in March, but apparently came back somewhere else...

   - USB transport buffer overflow fix

   - Some dentry lifetime rework to handle metadata update for currently
     opened files in uncached mode, or inode type change in cached mode

   - a double-put on invalid flush found by syzbot

   - and finally /sys/fs/9p/caches not advancing buffer and overwriting
     itself for large contents

  Thanks to everyone involved!"

* tag '9p-for-6.18-rc1' of https://github.com/martinetd/linux:
  9p: sysfs_init: don't hardcode error to ENOMEM
  9p: fix /sys/fs/9p/caches overwriting itself
  9p: clean up comment typos
  9p/trans_fd: p9_fd_request: kick rx thread if EPOLLIN
  net/9p: fix double req put in p9_fd_cancelled
  net/9p: Fix buffer overflow in USB transport layer
  fs/9p: Add p9_debug(VFS) in d_revalidate
  fs/9p: Invalidate dentry if inode type change detected in cached mode
  fs/9p: Refresh metadata in d_revalidate for uncached mode too