From: Filipe Manana <fdmanana@suse.com>
Date: Mon, 28 Nov 2022 12:07:21 +0000 (+0000)
Subject: btrfs: add a _require_btrfs_send_v2 helper
X-Git-Tag: v2022.12.11~8
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=676b0a09706d6db31b453e1c5aabce4204b541de;p=xfstests-dev.git

btrfs: add a _require_btrfs_send_v2 helper

Add a helper to check that both btrfs-progs and kernel support the v2 send
stream, so that we can have tests specific for send v2 stream.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>
---

diff --git a/common/btrfs b/common/btrfs
index d27d3384..ee673a93 100644
--- a/common/btrfs
+++ b/common/btrfs
@@ -585,3 +585,17 @@ _require_btrfs_corrupt_block()
 {
 	_require_command "$BTRFS_CORRUPT_BLOCK_PROG" btrfs-corrupt-block
 }
+
+_require_btrfs_send_v2()
+{
+	# Check first if btrfs-progs supports the v2 stream.
+	_require_btrfs_command send --compressed-data
+
+	# Now check the kernel support. If send_stream_version does not exists,
+	# then it's a kernel that only supports v1.
+	[ -f /sys/fs/btrfs/features/send_stream_version ] || \
+		_notrun "kernel does not support send stream v2"
+
+	[ $(cat /sys/fs/btrfs/features/send_stream_version) -gt 1 ] || \
+		_notrun "kernel does not support send stream v2"
+}