1# SPDX-License-Identifier: GPL-2.0-only
2
3config FSCACHE
4	tristate "General filesystem local caching manager"
5	select NETFS_SUPPORT
6	help
7	  This option enables a generic filesystem caching manager that can be
8	  used by various network and other filesystems to cache data locally.
9	  Different sorts of caches can be plugged in, depending on the
10	  resources available.
11
12	  See Documentation/filesystems/caching/fscache.rst for more information.
13
14config FSCACHE_STATS
15	bool "Gather statistical information on local caching"
16	depends on FSCACHE && PROC_FS
17	select NETFS_STATS
18	help
19	  This option causes statistical information to be gathered on local
20	  caching and exported through file:
21
22		/proc/fs/fscache/stats
23
24	  The gathering of statistics adds a certain amount of overhead to
25	  execution as there are a quite a few stats gathered, and on a
26	  multi-CPU system these may be on cachelines that keep bouncing
27	  between CPUs.  On the other hand, the stats are very useful for
28	  debugging purposes.  Saying 'Y' here is recommended.
29
30	  See Documentation/filesystems/caching/fscache.rst for more information.
31
32config FSCACHE_DEBUG
33	bool "Debug FS-Cache"
34	depends on FSCACHE
35	help
36	  This permits debugging to be dynamically enabled in the local caching
37	  management module.  If this is set, the debugging output may be
38	  enabled by setting bits in /sys/modules/fscache/parameter/debug.
39
40	  See Documentation/filesystems/caching/fscache.rst for more information.
41