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Diffstat (limited to 'Documentation/admin-guide/cifs/todo.rst')
| -rw-r--r-- | Documentation/admin-guide/cifs/todo.rst | 44 |
1 files changed, 21 insertions, 23 deletions
diff --git a/Documentation/admin-guide/cifs/todo.rst b/Documentation/admin-guide/cifs/todo.rst index 2646ed2e2d3e..9a65c670774e 100644 --- a/Documentation/admin-guide/cifs/todo.rst +++ b/Documentation/admin-guide/cifs/todo.rst @@ -2,7 +2,8 @@ TODO ==== -Version 2.14 December 21, 2018 +As of 6.7 kernel. See https://wiki.samba.org/index.php/LinuxCIFSKernel +for list of features added by release A Partial List of Missing Features ================================== @@ -12,22 +13,22 @@ for visible, important contributions to this module. Here is a partial list of the known problems and missing features: a) SMB3 (and SMB3.1.1) missing optional features: + multichannel performance optimizations, algorithmic channel selection, + directory leases optimizations, + support for faster packet signing (GMAC), + support for compression over the network, + T10 copy offload ie "ODX" (copy chunk, and "Duplicate Extents" ioctl + are currently the only two server side copy mechanisms supported) - - multichannel (partially integrated), integration of multichannel with RDMA - - directory leases (improved metadata caching). Currently only implemented for root dir - - T10 copy offload ie "ODX" (copy chunk, and "Duplicate Extents" ioctl - currently the only two server side copy mechanisms supported) +b) Better optimized compounding and error handling for sparse file support, + perhaps addition of new optional SMB3.1.1 fsctls to make collapse range + and insert range more atomic -b) improved sparse file support (fiemap and SEEK_HOLE are implemented - but additional features would be supportable by the protocol such - as FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_INSERT_RANGE) - -c) Directory entry caching relies on a 1 second timer, rather than - using Directory Leases, currently only the root file handle is cached longer - by leveraging Directory Leases +c) Support for SMB3.1.1 over QUIC (and perhaps other socket based protocols + like SCTP) d) quota support (needs minor kernel change since quota calls otherwise - won't make it to network filesystems or deviceless filesystems). + won't make it to network filesystems or deviceless filesystems). e) Additional use cases can be optimized to use "compounding" (e.g. open/query/close and open/setinfo/close) to reduce the number of @@ -92,23 +93,20 @@ t) split cifs and smb3 support into separate modules so legacy (and less v) Additional testing of POSIX Extensions for SMB3.1.1 -w) Add support for additional strong encryption types, and additional spnego - authentication mechanisms (see MS-SMB2). GCM-256 is now partially implemented. +w) Support for the Mac SMB3.1.1 extensions to improve interop with Apple servers + +x) Support for additional authentication options (e.g. IAKERB, peer-to-peer + Kerberos, SCRAM and others supported by existing servers) -x) Finish support for SMB3.1.1 compression +y) Improved tracing, more eBPF trace points, better scripts for performance + analysis Known Bugs ========== See https://bugzilla.samba.org - search on product "CifsVFS" for current bug list. Also check http://bugzilla.kernel.org (Product = File System, Component = CIFS) - -1) existing symbolic links (Windows reparse points) are recognized but - can not be created remotely. They are implemented for Samba and those that - support the CIFS Unix extensions, although earlier versions of Samba - overly restrict the pathnames. -2) follow_link and readdir code does not follow dfs junctions - but recognizes them +and xfstest results e.g. https://wiki.samba.org/index.php/Xfstest-results-smb3 Misc testing to do ================== |