common: Add _require_no_xfs_bug_on_assert and factor out filter_xfs_dmesg

[xfstests-dev.git] / common / xfs

diff --git a/common/xfs b/common/xfs
index ab58364079dd3978bd399fbde30a7b41a42abd7b..9b20b03807822c144fc57dfb6b93d7241a156389 100644 (file)
--- a/common/xfs
+++ b/common/xfs
@@ -625,6 +625,28 @@ _require_no_xfs_debug()
        fi
 }
 
+# Require that assertions will not crash the system.
+#
+# Assertions would always crash the system if XFS assert fatal was enabled
+# (CONFIG_XFS_ASSERT_FATAL=y).  If a test is designed to trigger an assertion,
+# skip the test on a CONFIG_XFS_ASSERT_FATAL built XFS by default.  Note:
+# CONFIG_XFS_ASSERT_FATAL can be disabled by setting bug_on_assert to zero if
+# we want test to run.
+_require_no_xfs_bug_on_assert()
+{
+       if [ -f /sys/fs/xfs/debug/bug_on_assert ]; then
+               grep -q "1" /sys/fs/xfs/debug/bug_on_assert && \
+                  _notrun "test requires XFS bug_on_assert to be off, turn it off to run the test"
+       else
+               # Note: Prior to the creation of CONFIG_XFS_ASSERT_FATAL (and
+               # the sysfs knob bug_on_assert), assertions would always crash
+               # the system if XFS debug was enabled (CONFIG_XFS_DEBUG=y).  If
+               # a test is designed to trigger an assertion and the test
+               # designer does not want to hang fstests, skip the test.
+               _require_no_xfs_debug
+       fi
+}
+
 # Get a metadata field
 # The first arg is the field name
 # The rest of the arguments are xfs_db commands to find the metadata.