[for-6.13,v3,00/14] nfs/nfsd: improvements for LOCALIO

Message

Mike Snitzer Nov. 16, 2024, 1:40 a.m. UTC

Hi,

All available here:
https://git.kernel.org/pub/scm/linux/kernel/git/snitzer/linux.git/log/?h=nfs-localio-for-next

Changes since v2:
- switched from rcu_assign_pointer to RCU_INIT_POINTER when setting to
  NULL.
- removed some unnecessary #if IS_ENABLED(CONFIG_NFS_LOCALIO)
- revised the NFS v3 probe patch to use a new nfsv3.ko modparam
  'nfs3_localio_probe_throttle' to control if NFSv3 will probe for
  LOCALIO. Avoids use of NFS_CS_LOCAL_IO and will probe every
  'nfs3_localio_probe_throttle' IO requests (defaults to 0, disabled).
- added "Module Parameters" section to localio.rst

All review appreciated, thanks.
Mike

Mike Snitzer (14):
  nfs/localio: add direct IO enablement with sync and async IO support
  nfsd: add nfsd_file_{get,put} to 'nfs_to' nfsd_localio_operations
  nfs_common: rename functions that invalidate LOCALIO nfs_clients
  nfs_common: move localio_lock to new lock member of nfs_uuid_t
  nfs: cache all open LOCALIO nfsd_file(s) in client
  nfsd: update percpu_ref to manage references on nfsd_net
  nfsd: rename nfsd_serv_ prefixed methods and variables with nfsd_net_
  nfsd: nfsd_file_acquire_local no longer returns GC'd nfsd_file
  nfs_common: rename nfslocalio nfs_uuid_lock to nfs_uuids_lock
  nfs_common: track all open nfsd_files per LOCALIO nfs_client
  nfs_common: add nfs_localio trace events
  nfs/localio: remove redundant code and simplify LOCALIO enablement
  nfs: probe for LOCALIO when v4 client reconnects to server
  nfs: probe for LOCALIO when v3 client reconnects to server

 Documentation/filesystems/nfs/localio.rst |  98 +++++----
 fs/nfs/client.c                           |   6 +-
 fs/nfs/direct.c                           |   1 +
 fs/nfs/flexfilelayout/flexfilelayout.c    |  25 +--
 fs/nfs/flexfilelayout/flexfilelayout.h    |   1 +
 fs/nfs/inode.c                            |   3 +
 fs/nfs/internal.h                         |   9 +-
 fs/nfs/localio.c                          | 232 +++++++++++++++-----
 fs/nfs/nfs3proc.c                         |  46 +++-
 fs/nfs/nfs4state.c                        |   1 +
 fs/nfs/nfstrace.h                         |  32 ---
 fs/nfs/pagelist.c                         |   5 +-
 fs/nfs/write.c                            |   3 +-
 fs/nfs_common/Makefile                    |   3 +-
 fs/nfs_common/localio_trace.c             |  10 +
 fs/nfs_common/localio_trace.h             |  56 +++++
 fs/nfs_common/nfslocalio.c                | 250 +++++++++++++++++-----
 fs/nfsd/filecache.c                       |  20 +-
 fs/nfsd/localio.c                         |   9 +-
 fs/nfsd/netns.h                           |  12 +-
 fs/nfsd/nfsctl.c                          |   6 +-
 fs/nfsd/nfssvc.c                          |  40 ++--
 include/linux/nfs_fs.h                    |  22 +-
 include/linux/nfs_fs_sb.h                 |   3 +-
 include/linux/nfs_xdr.h                   |   1 +
 include/linux/nfslocalio.h                |  48 +++--
 26 files changed, 674 insertions(+), 268 deletions(-)
 create mode 100644 fs/nfs_common/localio_trace.c
 create mode 100644 fs/nfs_common/localio_trace.h