1 # SPDX-License-Identifier: GPL-2.0-only
4 tristate "General filesystem local caching manager"
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
12 See Documentation/filesystems/caching/fscache.rst for more information.
15 bool "Gather statistical information on local caching"
16 depends on FSCACHE && PROC_FS
19 This option causes statistical information to be gathered on local
20 caching and exported through file:
22 /proc/fs/fscache/stats
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.
30 See Documentation/filesystems/caching/fscache.rst for more information.
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.
40 See Documentation/filesystems/caching/fscache.rst for more information.