| 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 2 | |
| 3 | config NETFS_SUPPORT |
| 4 | tristate |
| 5 | help |
| 6 | This option enables support for network filesystems, including |
| 7 | helpers for high-level buffered I/O, abstracting out read |
| 8 | segmentation, local caching and transparent huge page support. |
| 9 | |
| 10 | config NETFS_STATS |
| 11 | bool "Gather statistical information on local caching" |
| 12 | depends on NETFS_SUPPORT && PROC_FS |
| 13 | help |
| 14 | This option causes statistical information to be gathered on local |
| 15 | caching and exported through file: |
| 16 | |
| 17 | /proc/fs/fscache/stats |
| 18 | |
| 19 | The gathering of statistics adds a certain amount of overhead to |
| 20 | execution as there are a quite a few stats gathered, and on a |
| 21 | multi-CPU system these may be on cachelines that keep bouncing |
| 22 | between CPUs. On the other hand, the stats are very useful for |
| 23 | debugging purposes. Saying 'Y' here is recommended. |
| 24 | |
| 25 | config NETFS_PGPRIV2 |
| 26 | bool |
| 27 | |
| 28 | config NETFS_DEBUG |
| 29 | bool "Enable dynamic debugging netfslib and FS-Cache" |
| 30 | depends on NETFS_SUPPORT |
| 31 | help |
| 32 | This permits debugging to be dynamically enabled in the local caching |
| 33 | management module. If this is set, the debugging output may be |
| 34 | enabled by setting bits in /sys/module/netfs/parameters/debug. |
| 35 | |
| 36 | config FSCACHE |
| 37 | bool "General filesystem local caching manager" |
| 38 | depends on NETFS_SUPPORT |
| 39 | help |
| 40 | This option enables a generic filesystem caching manager that can be |
| 41 | used by various network and other filesystems to cache data locally. |
| 42 | Different sorts of caches can be plugged in, depending on the |
| 43 | resources available. |
| 44 | |
| 45 | See Documentation/filesystems/caching/fscache.rst for more information. |
| 46 | |
| 47 | config FSCACHE_STATS |
| 48 | bool "Gather statistical information on local caching" |
| 49 | depends on FSCACHE && PROC_FS |
| 50 | select NETFS_STATS |
| 51 | help |
| 52 | This option causes statistical information to be gathered on local |
| 53 | caching and exported through file: |
| 54 | |
| 55 | /proc/fs/fscache/stats |
| 56 | |
| 57 | The gathering of statistics adds a certain amount of overhead to |
| 58 | execution as there are a quite a few stats gathered, and on a |
| 59 | multi-CPU system these may be on cachelines that keep bouncing |
| 60 | between CPUs. On the other hand, the stats are very useful for |
| 61 | debugging purposes. Saying 'Y' here is recommended. |
| 62 | |
| 63 | See Documentation/filesystems/caching/fscache.rst for more information. |