btrfs-progs: build: note minimal version for zoned support

The configure phase can detect the following:

- no /usr/include/blkzoned.h - no zoned support possible
- usable /usr/include/blkzoned.h - on by default
- present /usr/include/blkzoned.h but unusable due to missing struct
  members or ioctl defintion

Case 3 could be confusing, so document the requirements.

Issue: #370
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2021-05-12 13:09:21 +02:00
parent a8bc071d9e
commit d4b4baf312

View File

@ -22,6 +22,9 @@ dependencies are not desired.
- libsodium
- libkcapi
For zoned device support, the system headers installed in /usr/include/linux
must be 5.10 or newer.
Generating documentation:
- asciidoc - text document format tool