[PATCH 1/5] fstests: Add support to check btrfs sysfs features

[Qu Wenruo <quwenruo@cn.fujitsu.com>]

Btrfs has its sysfs interface showing what features current kernel/btrfs
module support.

Add _require_btrfs_kernel_feature() to check such interface.

Also rename _require_btrfs() to _require_btrfs_subcommand() to avoid
confusion.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
---
 common/rc       | 2 +-
 tests/btrfs/004 | 2 +-
 tests/btrfs/048 | 1 +
 tests/btrfs/059 | 1 +
 4 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/common/rc b/common/rc
index af16c81..ff57862 100644
--- a/common/rc
+++ b/common/rc
@@ -2706,7 +2706,7 @@ _require_deletable_scratch_dev_pool()
 }
 
 # We check for btrfs and (optionally) features of the btrfs command
-_require_btrfs()
+_require_btrfs_subcommand()
 {
 	cmd=$1
 	_require_command "$BTRFS_UTIL_PROG" btrfs
diff --git a/tests/btrfs/004 b/tests/btrfs/004
index 905770a..2ce628e 100755
--- a/tests/btrfs/004
+++ b/tests/btrfs/004
@@ -51,7 +51,7 @@ _supported_fs btrfs
 _supported_os Linux
 _require_scratch
 _require_no_large_scratch_dev
-_require_btrfs inspect-internal
+_require_btrfs_subcommand inspect-internal
 _require_command "/usr/sbin/filefrag" filefrag
 
 rm -f $seqres.full
diff --git a/tests/btrfs/048 b/tests/btrfs/048
index c2cb4a6..d15346a 100755
--- a/tests/btrfs/048
+++ b/tests/btrfs/048
@@ -48,6 +48,7 @@ _supported_os Linux
 _require_test
 _require_scratch
 _require_btrfs "property"
+_require_btrfs_subcommand "property"
 
 send_files_dir=$TEST_DIR/btrfs-test-$seq
 
diff --git a/tests/btrfs/059 b/tests/btrfs/059
index b9a6ef4..6e7f7ee 100755
--- a/tests/btrfs/059
+++ b/tests/btrfs/059
@@ -51,6 +51,7 @@ _supported_os Linux
 _require_test
 _require_scratch
 _require_btrfs "property"
+_require_btrfs_subcommand "property"
 
 rm -f $seqres.full
 
-- 
2.7.1