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-rw-r--r--fs/btrfs/sysfs.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/sysfs.h b/fs/btrfs/sysfs.h
index f3cea3710d44..9ab576318a84 100644
--- a/fs/btrfs/sysfs.h
+++ b/fs/btrfs/sysfs.h
@@ -1,6 +1,11 @@
#ifndef _BTRFS_SYSFS_H_
#define _BTRFS_SYSFS_H_
+/*
+ * Data exported through sysfs
+ */
+extern u64 btrfs_debugfs_test;
+
enum btrfs_feature_set {
FEAT_COMPAT,
FEAT_COMPAT_RO,