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Linux/fs/netfs/Kconfig

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  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_DEBUG
 26         bool "Enable dynamic debugging netfslib and FS-Cache"
 27         depends on NETFS_SUPPORT
 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 
 33 config FSCACHE
 34         bool "General filesystem local caching manager"
 35         depends on NETFS_SUPPORT
 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.

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