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authorDave Airlie <airlied@redhat.com>2014-03-18 19:12:31 +1000
committerDave Airlie <airlied@redhat.com>2014-03-18 19:12:31 +1000
commitbcc298bc924e0a990f853ba3e19f8b5a833cba7e (patch)
tree1c87c8f73dc41fd11ee3dacb1b91a7cc8b4798bb /drivers/md/persistent-data/Kconfig
parent978c6050165bba52eab7ef3581d447eb215def77 (diff)
parentdcb99fd9b08cfe1afe426af4d8d3cbc429190f15 (diff)
downloadlinux-bcc298bc924e0a990f853ba3e19f8b5a833cba7e.tar.gz
Merge tag 'v3.14-rc7' into drm-next
Linux 3.14-rc7 Backmerge to help out Intel guys.
Diffstat (limited to 'drivers/md/persistent-data/Kconfig')
-rw-r--r--drivers/md/persistent-data/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/md/persistent-data/Kconfig b/drivers/md/persistent-data/Kconfig
index 19b268795415..0c2dec7aec20 100644
--- 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.