0001 # SPDX-License-Identifier: GPL-2.0-only
0002
0003 config FSCACHE
0004 tristate "General filesystem local caching manager"
0005 select NETFS_SUPPORT
0006 help
0007 This option enables a generic filesystem caching manager that can be
0008 used by various network and other filesystems to cache data locally.
0009 Different sorts of caches can be plugged in, depending on the
0010 resources available.
0011
0012 See Documentation/filesystems/caching/fscache.rst for more information.
0013
0014 config FSCACHE_STATS
0015 bool "Gather statistical information on local caching"
0016 depends on FSCACHE && PROC_FS
0017 select NETFS_STATS
0018 help
0019 This option causes statistical information to be gathered on local
0020 caching and exported through file:
0021
0022 /proc/fs/fscache/stats
0023
0024 The gathering of statistics adds a certain amount of overhead to
0025 execution as there are a quite a few stats gathered, and on a
0026 multi-CPU system these may be on cachelines that keep bouncing
0027 between CPUs. On the other hand, the stats are very useful for
0028 debugging purposes. Saying 'Y' here is recommended.
0029
0030 See Documentation/filesystems/caching/fscache.rst for more information.
0031
0032 config FSCACHE_DEBUG
0033 bool "Debug FS-Cache"
0034 depends on FSCACHE
0035 help
0036 This permits debugging to be dynamically enabled in the local caching
0037 management module. If this is set, the debugging output may be
0038 enabled by setting bits in /sys/modules/fscache/parameter/debug.
0039
0040 See Documentation/filesystems/caching/fscache.rst for more information.
