| # SPDX-License-Identifier: GPL-2.0-only |
| |
| config BCACHE |
| tristate "Block device as cache" |
| select BLOCK_HOLDER_DEPRECATED if SYSFS |
| 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. |
