btrfs-progs: docs: update feature status

Add some missing entries. Changes to supported levels:

- increase to 6.8 from 6.7 where applicable, there were fixes to squota
  and temp-fsid

- raid-stripe-tree declares support from 6.7, however this is still
  behind CONFIG_BTRFS_DEBUG option in kernel, there are some bugs
  and the known lack of RAID56 support

[ci skip]

Signed-off-by: David Sterba <dsterba@suse.com>

Author: kdave

Documentation/Status.rst

@@ -13,7 +13,7 @@ in meeting your performance expectations for your specific workload.
 Combination of features can vary in performance, the table does not
 cover all possibilities.
 
-**The table is based on the latest released linux kernel: 6.7**
+**The table is based on the latest released linux kernel: 6.8**
 
 The columns for each feature reflect the status of the implementation
 in following ways:
@@ -124,8 +124,8 @@ in following ways:
      - OK
      -
    * - Temporary FSID
-     - 6.7
-     - 6.7
+     - 6.8
+     - 6.8
      - Single devices with same FSID can be mounted repeatedly, getting a temporary UUID.
    * - :doc:`Seeding<Seeding-device>`
      - :statusok:`OK`
@@ -136,8 +136,8 @@ in following ways:
      - mostly OK
      - qgroups with many snapshots slows down balance
    * - :doc:`Squota, simplified qgroups<Qgroups>`
-     - 6.7
-     - 6.7
+     - 6.8
+     - 6.8
      - simplified qgroup accounting, better performance, specific use case
    * - :doc:`Swapfile<Swapfile>`
      - :statusok:`OK`
@@ -239,9 +239,9 @@ converted later).
      - OK
      -
    * - :ref:`Raid stripe tree<mkfs-feature-raid-stripe-tree>`
-     - :statusok:`OK`
+     - :statusmok:`mostly OK`
      - OK
-     -
+     - not all profiles are supported and RST is behind CONFIG_BTRFS_DEBUG build option
    * - :doc:`Squota<Qgroups>`
      - :statusok:`OK`
      - OK

Documentation/btrfs-man5.rst

@@ -141,6 +141,11 @@ raid1c34
 
         extended RAID1 mode with copies on 3 or 4 devices respectively
 
+raid_stripe_tree
+        (since: 6.7)
+
+        a separate tree for tracking file extents on RAID profiles
+
 RAID56
         (since: 3.9)
 
@@ -162,6 +167,11 @@ send_stream_version
 
         number of the highest supported send stream version
 
+simple_quota
+        (since: 6.7)
+
+        simplified quota accounting
+
 supported_checksums
         (since: 5.5)
 

Documentation/mkfs.btrfs.rst

@@ -346,15 +346,20 @@ block-group-tree
 .. _mkfs-feature-raid-stripe-tree:
 
 raid-stripe-tree
-        (kernel support since 6.7)
+        (kernel support since 6.7, CONFIG_BTRFS_DEBUG)
 
-        New tree for logical file extent mapping where the physical mapping
-        may not match on multiple devices. this is now used in zoned mode to
+        Separate tree for logical file extent mapping where the physical mapping
+        may not match on multiple devices. This is now used in zoned mode to
         implement RAID0/RAID1* profiles, but can be used in non-zoned mode as
         well. The support for RAID56 is in development and will eventually
         fix the problems with the current implementation. This is a backward
         incompatible feature and has to be enabled at mkfs time.
 
+        .. note::
+                Due to the status of implementation it is enabled only in
+                builds with CONFIG_BTRFS_DEBUG. Support by the kernel module
+                can be found in the sysfs feature list.
+
 squota
 	(kernel support since 6.7)