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-rw-r--r--drivers/md/persistent-data/Kconfig18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/md/persistent-data/Kconfig b/drivers/md/persistent-data/Kconfig
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+++ b/drivers/md/persistent-data/Kconfig
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+config DM_PERSISTENT_DATA
+ tristate
+ depends on BLK_DEV_DM
+ select LIBCRC32C
+ select DM_BUFIO
+ ---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
+ bool "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.