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-rw-r--r--module/zfs/include/sys/zfs_debug.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/module/zfs/include/sys/zfs_debug.h b/module/zfs/include/sys/zfs_debug.h
index 50ecf9b36..f08d7cd2b 100644
--- a/module/zfs/include/sys/zfs_debug.h
+++ b/module/zfs/include/sys/zfs_debug.h
@@ -54,11 +54,24 @@ extern int zfs_flags;
#define ZFS_DEBUG_MODIFY 0x0010
#ifdef ZFS_DEBUG
+#if defined(_KERNEL) && defined(HAVE_SPL)
+/*
+ * Log ZFS debug messages as the spl SS_USER1 subsystem.
+ */
+#include <spl-debug.h>
+
+#ifdef SS_DEBUG_SUBSYS
+#undef SS_DEBUG_SUBSYS
+#endif
+#define SS_DEBUG_SUBSYS SS_USER1
+#define dprintf(...) SDEBUG_LIMIT(SD_DPRINTF, __VA_ARGS__)
+#else
extern void __dprintf(const char *file, const char *func,
int line, const char *fmt, ...);
#define dprintf(...) \
if (zfs_flags & ZFS_DEBUG_DPRINTF) \
__dprintf(__FILE__, __func__, __LINE__, __VA_ARGS__)
+#endif /* _KERNEL && HAVE_SPL */
#else
#define dprintf(...) ((void)0)
#endif /* ZFS_DEBUG */