Commit 6bb34aff1ebd for kernel

commit 6bb34aff1ebdd4ee8ea1721068f74d476d707f01
Merge: d358e5254674 bd3b04b46c7a
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Fri Dec 12 21:52:42 2025 +1200

    Merge tag 'nfs-for-6.19-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

    Pull NFS client updates from Trond Myklebust:
     "Bugfixes:
       - Fix 'nlink' attribute update races when unlinking a file
       - Add missing initialisers for the directory verifier in various
         places
       - Don't regress the NFSv4 open state due to misordered racing replies
       - Ensure the NFSv4.x callback server uses the correct transport
         connection
       - Fix potential use-after-free races when shutting down the NFSv4.x
         callback server
       - Fix a pNFS layout commit crash
       - Assorted fixes to ensure correct propagation of mount options when
         the client crosses a filesystem boundary and triggers the VFS
         automount code
       - More localio fixes

      Features and cleanups:
       - Add initial support for basic directory delegations
       - SunRPC back channel code cleanups"

    * tag 'nfs-for-6.19-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (24 commits)
      NFSv4: Handle NFS4ERR_NOTSUPP errors for directory delegations
      nfs/localio: remove 61 byte hole from needless ____cacheline_aligned
      nfs/localio: remove alignment size checking in nfs_is_local_dio_possible
      NFS: Fix up the automount fs_context to use the correct cred
      NFS: Fix inheritance of the block sizes when automounting
      NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags
      Revert "nfs: ignore SB_RDONLY when mounting nfs"
      Revert "nfs: clear SB_RDONLY before getting superblock"
      Revert "nfs: ignore SB_RDONLY when remounting nfs"
      NFS: Add a module option to disable directory delegations
      NFS: Shortcut lookup revalidations if we have a directory delegation
      NFS: Request a directory delegation during RENAME
      NFS: Request a directory delegation on ACCESS, CREATE, and UNLINK
      NFS: Add support for sending GDD_GETATTR
      NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid
      NFSv4.1: protect destroying and nullifying bc_serv structure
      SUNRPC: new helper function for stopping backchannel server
      SUNRPC: cleanup common code in backchannel request
      NFSv4.1: pass transport for callback shutdown
      NFSv4: ensure the open stateid seqid doesn't go backwards
      ...