Hi, These latest changes are available in my git tree here: https://git.kernel.org/pub/scm/linux/kernel/git/snitzer/linux.git/log/?h=nfs-localio-for-next The NFSD changes have all settled with this v16. This is the natural pivot point for NFS client review to be completed (my understanding from Trond is that Anna will be taking a close look). Changes since v15, which are reflected in the top 3 commits on this branch: https://git.kernel.org/pub/scm/linux/kernel/git/snitzer/linux.git/log/?h=nfs-localio-for-next.v15-with-fixups - Fixes to nfs_to to follow normal operations table pattern Switch 'nfs_to' to a proper pointer that just needs a simple assignment rather than memcpy() to initialize. Updated all 'nfs_to' callers accordingly. Removed the associated 'nfs_to_<nfsd_func>_t' function pointer typedefs that really weren't helpful. - Removed EXPORT_SYMBOL_GPL for nfsd_serv_put, nfsd_file_put_local and nfsd_file_file (these symbols are only used directly in nfsd, but they are exposed to nfs via 'nfs_to' operations table). - A few sparse fixes dealing primarily with rcu usage. - nfs_common: push nfsd_open_local_fh rcu requirements to caller. Now nfs_open_local_fh safely gets reference to nfsd_serv and then drops rcu before its call to nfs_to->nfsd_open_local_fh. If that call fails then nfs_to->nfsd_serv_put is needed. This cleans up the awkward rcu bouncing that was in nfsd_open_local_fh but introduces the need for both nfs_to->nfsd_serv_try_get and nfs_to->nfsd_serv_put. All review appreciated, thanks! Mike Chuck Lever (2): NFSD: Avoid using rqstp->rq_vers in nfsd_set_fh_dentry() NFSD: Short-circuit fh_verify tracepoints for LOCALIO Mike Snitzer (12): nfs_common: factor out nfs_errtbl and nfs_stat_to_errno nfs_common: factor out nfs4_errtbl and nfs4_stat_to_errno nfs: factor out {encode,decode}_opaque_fixed to nfs_xdr.h nfsd: add nfsd_serv_try_get and nfsd_serv_put SUNRPC: remove call_allocate() BUG_ONs nfs_common: add NFS LOCALIO auxiliary protocol enablement nfs_common: prepare for the NFS client to use nfsd_file for LOCALIO nfsd: implement server support for NFS_LOCALIO_PROGRAM nfs: pass struct nfsd_file to nfs_init_pgio and nfs_init_commit nfs: implement client support for NFS_LOCALIO_PROGRAM nfs: add Documentation/filesystems/nfs/localio.rst nfs: add "NFS Client and Server Interlock" section to localio.rst NeilBrown (5): NFSD: Handle @rqstp == NULL in check_nfsd_access() NFSD: Refactor nfsd_setuser_and_check_port() nfsd: factor out __fh_verify to allow NULL rqstp to be passed nfsd: add nfsd_file_acquire_local() SUNRPC: replace program list with program array Trond Myklebust (4): nfs: enable localio for non-pNFS IO pnfs/flexfiles: enable localio support nfs/localio: use dedicated workqueues for filesystem read and write nfs: add FAQ section to Documentation/filesystems/nfs/localio.rst Weston Andros Adamson (3): SUNRPC: add svcauth_map_clnt_to_svc_cred_local nfsd: add LOCALIO support nfs: add LOCALIO support Documentation/filesystems/nfs/localio.rst | 357 ++++++++++ fs/Kconfig | 23 + fs/nfs/Kconfig | 1 + fs/nfs/Makefile | 1 + fs/nfs/client.c | 15 +- fs/nfs/filelayout/filelayout.c | 6 +- fs/nfs/flexfilelayout/flexfilelayout.c | 56 +- fs/nfs/flexfilelayout/flexfilelayoutdev.c | 6 + fs/nfs/inode.c | 57 +- fs/nfs/internal.h | 53 +- fs/nfs/localio.c | 757 ++++++++++++++++++++++ fs/nfs/nfs2xdr.c | 70 +- fs/nfs/nfs3xdr.c | 108 +-- fs/nfs/nfs4xdr.c | 84 +-- fs/nfs/nfstrace.h | 61 ++ fs/nfs/pagelist.c | 16 +- fs/nfs/pnfs_nfs.c | 2 +- fs/nfs/write.c | 12 +- fs/nfs_common/Makefile | 5 + fs/nfs_common/common.c | 134 ++++ fs/nfs_common/nfslocalio.c | 172 +++++ fs/nfsd/Kconfig | 1 + fs/nfsd/Makefile | 1 + fs/nfsd/export.c | 30 +- fs/nfsd/filecache.c | 101 ++- fs/nfsd/filecache.h | 5 + fs/nfsd/localio.c | 169 +++++ fs/nfsd/netns.h | 12 +- fs/nfsd/nfsctl.c | 27 +- fs/nfsd/nfsd.h | 6 +- fs/nfsd/nfsfh.c | 137 ++-- fs/nfsd/nfsfh.h | 2 + fs/nfsd/nfssvc.c | 105 ++- fs/nfsd/trace.h | 21 +- fs/nfsd/vfs.h | 2 + include/linux/nfs.h | 9 + include/linux/nfs_common.h | 17 + include/linux/nfs_fs_sb.h | 9 + include/linux/nfs_xdr.h | 20 +- include/linux/nfslocalio.h | 74 +++ include/linux/sunrpc/svc.h | 7 +- include/linux/sunrpc/svcauth.h | 5 + net/sunrpc/clnt.c | 6 - net/sunrpc/svc.c | 68 +- net/sunrpc/svc_xprt.c | 2 +- net/sunrpc/svcauth.c | 28 + net/sunrpc/svcauth_unix.c | 3 +- 47 files changed, 2454 insertions(+), 409 deletions(-) create mode 100644 Documentation/filesystems/nfs/localio.rst create mode 100644 fs/nfs/localio.c create mode 100644 fs/nfs_common/common.c create mode 100644 fs/nfs_common/nfslocalio.c create mode 100644 fs/nfsd/localio.c create mode 100644 include/linux/nfs_common.h create mode 100644 include/linux/nfslocalio.h -- 2.44.0
