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