Merge remote-tracking branch 'asoc/topic/lm4857' into asoc-next

[cascardo/linux.git] / drivers / md / persistent-data / Kconfig

diff --git a/drivers/md/persistent-data/Kconfig b/drivers/md/persistent-data/Kconfig
index 19b2687..0c2dec7 100644 (file)
--- a/drivers/md/persistent-data/Kconfig
+++ b/drivers/md/persistent-data/Kconfig
@@ -6,3 +6,13 @@ config DM_PERSISTENT_DATA
        ---help---
         Library providing immutable on-disk data structure support for
         device-mapper targets such as the thin provisioning target.
+
+config DM_DEBUG_BLOCK_STACK_TRACING
+       boolean "Keep stack trace of persistent data block lock holders"
+       depends on STACKTRACE_SUPPORT && DM_PERSISTENT_DATA
+       select STACKTRACE
+       ---help---
+        Enable this for messages that may help debug problems with the
+        block manager locking used by thin provisioning and caching.
+
+        If unsure, say N.