[PATCH] fstests: detect btrfs compression and disable certain tests

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Our nightly xfstests runs exposed a set of tests that always fail if we
have compression enabled.  This is because compression obviously messes
with the amount of data space allocated on disk, and these tests are
testing either that quota is doing the correct thing, or that we're able
to completely fill the file system.

Add a helper to check to see if we have any of our compression related
mount options set and simply _not_run for these specific tests.

Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
---
 common/btrfs      | 10 ++++++++++
 tests/btrfs/126   |  4 ++++
 tests/btrfs/139   |  4 ++++
 tests/btrfs/230   |  4 ++++
 tests/btrfs/232   |  4 ++++
 tests/generic/275 |  4 ++++
 tests/generic/427 |  4 ++++
 7 files changed, 34 insertions(+)

diff --git a/common/btrfs b/common/btrfs
index 2eab4b29..b4067121 100644
--- a/common/btrfs
+++ b/common/btrfs
@@ -113,6 +113,16 @@ _require_btrfs_fs_sysfs()
 
 }
 
+_require_btrfs_no_compress()
+{
+	if [ "$FSTYP" != "btrfs" ]; then
+		return
+	fi
+
+	_scratch_mount_options | grep -q "compress"
+	[ $? -eq 0 ] && _notrun "This test requires no compression enabled"
+}
+
 _check_btrfs_filesystem()
 {
 	device=$1
diff --git a/tests/btrfs/126 b/tests/btrfs/126
index a13a0a6e..d9b638fd 100755
--- a/tests/btrfs/126
+++ b/tests/btrfs/126
@@ -19,6 +19,10 @@ _supported_fs btrfs
 _require_scratch
 _require_btrfs_qgroup_report
 
+# This test requires specific data space usage, skip if we have compression
+# enabled.
+_require_btrfs_no_compress
+
 _scratch_mkfs >/dev/null
 # Use enospc_debug mount option to trigger restrict space info check
 _scratch_mount "-o enospc_debug"
diff --git a/tests/btrfs/139 b/tests/btrfs/139
index 7760182a..dcf85416 100755
--- a/tests/btrfs/139
+++ b/tests/btrfs/139
@@ -19,6 +19,10 @@ _supported_fs btrfs
 # We at least need 2GB of free space on $SCRATCH_DEV
 _require_scratch_size $((2 * 1024 * 1024))
 
+# This test requires specific data space usage, skip if we have compression
+# enabled.
+_require_btrfs_no_compress
+
 _scratch_mkfs > /dev/null 2>&1
 _scratch_mount
 
diff --git a/tests/btrfs/230 b/tests/btrfs/230
index 2daacfbe..d431be50 100755
--- a/tests/btrfs/230
+++ b/tests/btrfs/230
@@ -17,6 +17,10 @@ _begin_fstest auto quick qgroup limit
 
 _supported_fs btrfs
 
+# This test requires specific data space usage, skip if we have compression
+# enabled.
+_require_btrfs_no_compress
+
 # Need at least 2GiB
 _require_scratch_size $((2 * 1024 * 1024))
 _scratch_mkfs > /dev/null 2>&1
diff --git a/tests/btrfs/232 b/tests/btrfs/232
index 8691a508..eca1bf41 100755
--- a/tests/btrfs/232
+++ b/tests/btrfs/232
@@ -33,6 +33,10 @@ writer()
 
 _supported_fs btrfs
 
+# This test requires specific data space usage, skip if we have compression
+# enabled.
+_require_btrfs_no_compress
+
 _require_scratch_size $((2 * 1024 * 1024))
 _scratch_mkfs > /dev/null 2>&1
 _scratch_mount
diff --git a/tests/generic/275 b/tests/generic/275
index bf0aa2b3..012bd45f 100755
--- a/tests/generic/275
+++ b/tests/generic/275
@@ -25,6 +25,10 @@ _cleanup()
 _supported_fs generic
 _require_scratch
 
+# This test requires specific data space usage, skip if we have compression
+# enabled.
+_require_btrfs_no_compress
+
 echo "------------------------------"
 echo "write until ENOSPC test"
 echo "------------------------------"
diff --git a/tests/generic/427 b/tests/generic/427
index 0f99c1b2..2ebcbf43 100755
--- a/tests/generic/427
+++ b/tests/generic/427
@@ -22,6 +22,10 @@ _require_scratch
 _require_test_program "feature"
 _require_aiodio aio-dio-eof-race
 
+# This test requires specific data space usage, skip if we have compression
+# enabled.
+_require_btrfs_no_compress
+
 # limit the filesystem size, to save the time of filling filesystem
 _scratch_mkfs_sized $((256 * 1024 * 1024)) >>$seqres.full 2>&1
 _scratch_mount
-- 
2.26.3




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