1 # SPDX-License-Identifier: GPL-2.0-only
4 tristate "Block device as cache"
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.
10 See Documentation/admin-guide/bcache.rst for details.
13 bool "Bcache debugging"
16 Don't select this option unless you're a developer
18 Enables extra debugging tools, allows expensive runtime checks to be
21 config BCACHE_CLOSURES_DEBUG
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.
30 config BCACHE_ASYNC_REGISTRATION
31 bool "Asynchronous device registration (EXPERIMENTAL)"
34 Add a sysfs file /sys/fs/bcache/register_async. Writing registering
35 device path into this file will returns immediately and the real
36 registration work is handled in kernel work queue in asynchronous