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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:12 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:12 +0000
commit8665bd53f2f2e27e5511d90428cb3f60e6d0ce15 (patch)
tree8d58900dc0ebd4a3011f92c128d2fe45bc7c4bf2 /Documentation/admin-guide/cifs/todo.rst
parentAdding debian version 6.7.12-1. (diff)
downloadlinux-8665bd53f2f2e27e5511d90428cb3f60e6d0ce15.tar.xz
linux-8665bd53f2f2e27e5511d90428cb3f60e6d0ce15.zip
Merging upstream version 6.8.9.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/admin-guide/cifs/todo.rst')
-rw-r--r--Documentation/admin-guide/cifs/todo.rst44
1 files changed, 21 insertions, 23 deletions
diff --git a/Documentation/admin-guide/cifs/todo.rst b/Documentation/admin-guide/cifs/todo.rst
index 2646ed2e2d..9a65c67077 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
==================