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