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+# SPDX-License-Identifier: GPL-2.0-only
+
+config BCACHE
+ tristate "Block device as cache"
+ select CRC64
+ help
+ Allows a block device to be used as cache for other devices; uses
+ a btree for indexing and the layout is optimized for SSDs.
+
+ See Documentation/admin-guide/bcache.rst for details.
+
+config BCACHE_DEBUG
+ bool "Bcache debugging"
+ depends on BCACHE
+ help
+ Don't select this option unless you're a developer
+
+ Enables extra debugging tools, allows expensive runtime checks to be
+ turned on.
+
+config BCACHE_CLOSURES_DEBUG
+ bool "Debug closures"
+ depends on BCACHE
+ select DEBUG_FS
+ help
+ Keeps all active closures in a linked list and provides a debugfs
+ interface to list them, which makes it possible to see asynchronous
+ operations that get stuck.
+
+config BCACHE_ASYNC_REGISTRATION
+ bool "Asynchronous device registration (EXPERIMENTAL)"
+ depends on BCACHE
+ help
+ Add a sysfs file /sys/fs/bcache/register_async. Writing registering
+ device path into this file will returns immediately and the real
+ registration work is handled in kernel work queue in asynchronous
+ way.