diff options
Diffstat (limited to 'drivers/md/Kconfig')
| -rw-r--r-- | drivers/md/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 7913fdcfc849..1b69359461e9 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -240,6 +240,15 @@ config DM_BUFIO as a cache, holding recently-read blocks in memory and performing delayed writes. +config DM_DEBUG_BLOCK_STACK_TRACING + bool "Keep stack trace of persistent data block lock holders" + depends on STACKTRACE_SUPPORT && DM_BUFIO + 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. config DM_BIO_PRISON tristate depends on BLK_DEV_DM |