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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
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.
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