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| author | David Howells <dhowells@redhat.com> | 2021-10-20 15:34:41 +0200 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2022-01-07 10:22:19 +0100 |
| commit | 1e1236b841166f1d2daf36fdf6bb3e656bc5f5ca (patch) | |
| tree | dfe52e21b5373b4706133ba93854502a55eac904 /fs/fscache/Kconfig | |
| parent | netfs: Pass a flag to ->prepare_write() to say if there's no alloc'd space (diff) | |
| download | linux-1e1236b841166f1d2daf36fdf6bb3e656bc5f5ca.tar.xz linux-1e1236b841166f1d2daf36fdf6bb3e656bc5f5ca.zip | |
fscache: Introduce new driver
Introduce basic skeleton of the new, rewritten fscache driver.
Changes
=======
ver #3:
- Use remove_proc_subtree(), not remove_proc_entry() to remove a populated
dir.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/163819584034.215744.4290533472390439030.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/163906887770.143852.3577888294989185666.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/163967080039.1823006.5702921801104057922.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/164021491014.640689.4292699878317589512.stgit@warthog.procyon.org.uk/ # v4
Diffstat (limited to 'fs/fscache/Kconfig')
| -rw-r--r-- | fs/fscache/Kconfig | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/fs/fscache/Kconfig b/fs/fscache/Kconfig index 6440484d9461..76316c4a3fb7 100644 --- a/fs/fscache/Kconfig +++ b/fs/fscache/Kconfig @@ -1,4 +1,43 @@ # SPDX-License-Identifier: GPL-2.0-only +config FSCACHE + tristate "General filesystem local caching manager" + select NETFS_SUPPORT + help + This option enables a generic filesystem caching manager that can be + used by various network and other filesystems to cache data locally. + Different sorts of caches can be plugged in, depending on the + resources available. + + See Documentation/filesystems/caching/fscache.rst for more information. + +config FSCACHE_STATS + bool "Gather statistical information on local caching" + depends on FSCACHE && PROC_FS + select NETFS_STATS + help + This option causes statistical information to be gathered on local + caching and exported through file: + + /proc/fs/fscache/stats + + The gathering of statistics adds a certain amount of overhead to + execution as there are a quite a few stats gathered, and on a + multi-CPU system these may be on cachelines that keep bouncing + between CPUs. On the other hand, the stats are very useful for + debugging purposes. Saying 'Y' here is recommended. + + See Documentation/filesystems/caching/fscache.rst for more information. + +config FSCACHE_DEBUG + bool "Debug FS-Cache" + depends on FSCACHE + help + This permits debugging to be dynamically enabled in the local caching + management module. If this is set, the debugging output may be + enabled by setting bits in /sys/modules/fscache/parameter/debug. + + See Documentation/filesystems/caching/fscache.rst for more information. + config FSCACHE_OLD_API bool |