1# SPDX-License-Identifier: GPL-2.0-only
2
3config BCACHE
4	tristate "Block device as cache"
5	select CRC64
6	help
7	Allows a block device to be used as cache for other devices; uses
8	a btree for indexing and the layout is optimized for SSDs.
9
10	See Documentation/admin-guide/bcache.rst for details.
11
12config BCACHE_DEBUG
13	bool "Bcache debugging"
14	depends on BCACHE
15	help
16	Don't select this option unless you're a developer
17
18	Enables extra debugging tools, allows expensive runtime checks to be
19	turned on.
20
21config BCACHE_CLOSURES_DEBUG
22	bool "Debug closures"
23	depends on BCACHE
24	select DEBUG_FS
25	help
26	Keeps all active closures in a linked list and provides a debugfs
27	interface to list them, which makes it possible to see asynchronous
28	operations that get stuck.
29