[PATCH] btrfs-progs: doc: fix the out-of-date contents on btrfs-progs support on free space cache tree

[PATCH] btrfs-progs: doc: fix the out-of-date contents on btrfs-progs support on free space cache tree

[Qu Wenruo]

Since v4.19, btrfs-progs has full write support to free space tree, the
out-of-date warning in btrfs(5) has already confused some end user.

Update the content to avoid further confusion.

Signed-off-by: Qu Wenruo <wqu@suse.com>
---
 Documentation/btrfs-man5.asciidoc | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Documentation/btrfs-man5.asciidoc b/Documentation/btrfs-man5.asciidoc
index 806ac786c3c4..813a9fb08d6e 100644
--- a/Documentation/btrfs-man5.asciidoc
+++ b/Documentation/btrfs-man5.asciidoc
@@ -385,10 +385,10 @@ implementation, which adds a new B-tree called the free space tree, addresses
 this issue. Once enabled, the 'v2' space cache will always be used and cannot
 be disabled unless it is cleared. Use 'clear_cache,space_cache=v1' or
 'clear_cache,nospace_cache' to do so. If 'v2' is enabled, kernels without 'v2'
-support will only be able to mount the filesystem in read-only mode. The
-`btrfs`(8) command currently only has read-only support for 'v2'. A read-write
-command may be run on a 'v2' filesystem by clearing the cache, running the
-command, and then remounting with 'space_cache=v2'.
+support will only be able to mount the filesystem in read-only mode.
++
+The `btrfs-check`(8) and `mkfs.btrfs`(8) commands have full 'v2' free space
+cache support since v4.19.
 +
 If a version is not explicitly specified, the default implementation will be
 chosen, which is 'v1'.
-- 
2.32.0

Re: [PATCH] btrfs-progs: doc: fix the out-of-date contents on btrfs-progs support on free space cache tree

[Nikolay Borisov]

On 14.07.21 г. 9:11, Qu Wenruo wrote:
> Since v4.19, btrfs-progs has full write support to free space tree, the
> out-of-date warning in btrfs(5) has already confused some end user.
> 
> Update the content to avoid further confusion.
> 
> Signed-off-by: Qu Wenruo <wqu@suse.com>

Reviewed-by: Nikolay Borisov <nborisov@suse.com>

Re: [PATCH] btrfs-progs: doc: fix the out-of-date contents on btrfs-progs support on free space cache tree

[David Sterba]

On Wed, Jul 14, 2021 at 02:11:14PM +0800, Qu Wenruo wrote:
> Since v4.19, btrfs-progs has full write support to free space tree, the
> out-of-date warning in btrfs(5) has already confused some end user.
> 
> Update the content to avoid further confusion.
> 
> Signed-off-by: Qu Wenruo <wqu@suse.com>

Added to devel, thanks.