projects / linux-block.git / blame
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1 | # SPDX-License-Identifier: GPL-2.0-only |
| 2 | ||
| 3 | config NETFS_SUPPORT | |
| b71c7912 | 4 | tristate |
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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. | |
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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. | |
| 47757ea8 | 24 | |
| fcad9336 DH |
25 | config NETFS_DEBUG |
| 26 | bool "Enable dynamic debugging netfslib and FS-Cache" | |
| 889ced4c | 27 | depends on NETFS_SUPPORT |
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28 | help |
| 29 | This permits debugging to be dynamically enabled in the local caching | |
| 30 | management module. If this is set, the debugging output may be | |
| 31 | enabled by setting bits in /sys/module/netfs/parameters/debug. | |
| 32 | ||
| 47757ea8 | 33 | config FSCACHE |
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34 | bool "General filesystem local caching manager" |
| 35 | depends on NETFS_SUPPORT | |
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36 | help |
| 37 | This option enables a generic filesystem caching manager that can be | |
| 38 | used by various network and other filesystems to cache data locally. | |
| 39 | Different sorts of caches can be plugged in, depending on the | |
| 40 | resources available. | |
| 41 | ||
| 42 | See Documentation/filesystems/caching/fscache.rst for more information. | |
| 43 | ||
| 44 | config FSCACHE_STATS | |
| 45 | bool "Gather statistical information on local caching" | |
| 46 | depends on FSCACHE && PROC_FS | |
| 47 | select NETFS_STATS | |
| 48 | help | |
| 49 | This option causes statistical information to be gathered on local | |
| 50 | caching and exported through file: | |
| 51 | ||
| 52 | /proc/fs/fscache/stats | |
| 53 | ||
| 54 | The gathering of statistics adds a certain amount of overhead to | |
| 55 | execution as there are a quite a few stats gathered, and on a | |
| 56 | multi-CPU system these may be on cachelines that keep bouncing | |
| 57 | between CPUs. On the other hand, the stats are very useful for | |
| 58 | debugging purposes. Saying 'Y' here is recommended. | |
| 59 | ||
| 60 | See Documentation/filesystems/caching/fscache.rst for more information. |