| 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 2 | |
| 3 | config BCACHE |
| 4 | tristate "Block device as cache" |
| 5 | select BLOCK_HOLDER_DEPRECATED if SYSFS |
| 6 | select CRC64 |
| 7 | select CLOSURES |
| 8 | help |
| 9 | Allows a block device to be used as cache for other devices; uses |
| 10 | a btree for indexing and the layout is optimized for SSDs. |
| 11 | |
| 12 | See Documentation/admin-guide/bcache.rst for details. |
| 13 | |
| 14 | config BCACHE_DEBUG |
| 15 | bool "Bcache debugging" |
| 16 | depends on BCACHE |
| 17 | help |
| 18 | Don't select this option unless you're a developer |
| 19 | |
| 20 | Enables extra debugging tools, allows expensive runtime checks to be |
| 21 | turned on. |
| 22 | |
| 23 | config BCACHE_ASYNC_REGISTRATION |
| 24 | bool "Asynchronous device registration" |
| 25 | depends on BCACHE |
| 26 | help |
| 27 | Add a sysfs file /sys/fs/bcache/register_async. Writing registering |
| 28 | device path into this file will returns immediately and the real |
| 29 | registration work is handled in kernel work queue in asynchronous |
| 30 | way. |