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-rw-r--r--fs/cachefiles/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/cachefiles/Kconfig b/fs/cachefiles/Kconfig
index 719faeeda168..8df715640a48 100644
--- a/fs/cachefiles/Kconfig
+++ b/fs/cachefiles/Kconfig
@@ -26,3 +26,15 @@ config CACHEFILES_ERROR_INJECTION
help
This permits error injection to be enabled in cachefiles whilst a
cache is in service.
+
+config CACHEFILES_ONDEMAND
+ bool "Support for on-demand read"
+ depends on CACHEFILES
+ default n
+ help
+ This permits userspace to enable the cachefiles on-demand read mode.
+ In this mode, when a cache miss occurs, responsibility for fetching
+ the data lies with the cachefiles backend instead of with the netfs
+ and is delegated to userspace.
+
+ If unsure, say N.