[Devel] [PATCH 3/3] fuse: Switch unused engines off in Kconfig

[Kirill Tkhai]

We do not test and do not use these engines. They were
needed on initial stage of development, but now their
time is over.

It's not safe to distribute untested (and never used)
debug modules in production, so this patch disables
them by default. Some time later, if there is no at least
a single using of them in any purpose, we'll completely
drop them.

https://pmc.acronis.com/browse/VSTOR-16325

Signed-off-by: Kirill Tkhai <ktkhai at virtuozzo.com>
---
 configs/kernel-3.10.0-x86_64-debug.config   |    4 ++--
 configs/kernel-3.10.0-x86_64-minimal.config |    4 ++--
 configs/kernel-3.10.0-x86_64.config         |    4 ++--
 fs/fuse/Kconfig                             |    2 ++
 4 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/configs/kernel-3.10.0-x86_64-debug.config b/configs/kernel-3.10.0-x86_64-debug.config
index 9ff450667838..758f7618abc1 100644
--- a/configs/kernel-3.10.0-x86_64-debug.config
+++ b/configs/kernel-3.10.0-x86_64-debug.config
@@ -6430,8 +6430,8 @@ CONFIG_NETFILTER_XT_MATCH_WDOG_TMO=m
 
 CONFIG_VE_IP_NF_VZPRIVNET=m
 
-CONFIG_FUSE_KIO_NOOP=m
-CONFIG_FUSE_KIO_NULLIO=m
+# CONFIG_FUSE_KIO_NOOP is not set
+# CONFIG_FUSE_KIO_NULLIO is not set
 CONFIG_FUSE_KIO_PCS=m
 
 CONFIG_FUSE_KIO_DEBUG=y
diff --git a/configs/kernel-3.10.0-x86_64-minimal.config b/configs/kernel-3.10.0-x86_64-minimal.config
index 4a5211f1dc47..037821b0dea5 100644
--- a/configs/kernel-3.10.0-x86_64-minimal.config
+++ b/configs/kernel-3.10.0-x86_64-minimal.config
@@ -3682,8 +3682,8 @@ CONFIG_QUOTACTL_COMPAT=y
 CONFIG_AUTOFS4_FS=y
 CONFIG_FUSE_FS=y
 # CONFIG_CUSE is not set
-CONFIG_FUSE_KIO_NOOP=y
-CONFIG_FUSE_KIO_NULLIO=y
+# CONFIG_FUSE_KIO_NOOP is not set
+# CONFIG_FUSE_KIO_NULLIO is not set
 CONFIG_FUSE_KIO_PCS=y
 # CONFIG_FUSE_KIO_DEBUG is not set
 CONFIG_OVERLAY_FS=y
diff --git a/configs/kernel-3.10.0-x86_64.config b/configs/kernel-3.10.0-x86_64.config
index bdc91d414de6..8b5e2ade38f3 100644
--- a/configs/kernel-3.10.0-x86_64.config
+++ b/configs/kernel-3.10.0-x86_64.config
@@ -6401,8 +6401,8 @@ CONFIG_NETFILTER_XT_MATCH_WDOG_TMO=m
 
 CONFIG_VE_IP_NF_VZPRIVNET=m
 
-CONFIG_FUSE_KIO_NOOP=m
-CONFIG_FUSE_KIO_NULLIO=m
+# CONFIG_FUSE_KIO_NOOP is not set
+# CONFIG_FUSE_KIO_NULLIO is not set
 CONFIG_FUSE_KIO_PCS=m
 
 # CONFIG_FUSE_KIO_DEBUG is not set
diff --git a/fs/fuse/Kconfig b/fs/fuse/Kconfig
index b7fc9e8be4a2..8ecc12182e6a 100644
--- a/fs/fuse/Kconfig
+++ b/fs/fuse/Kconfig
@@ -29,6 +29,7 @@ config CUSE
 config FUSE_KIO_NOOP
 	tristate "Enable kdirect noop io engine"
 	depends on FUSE_FS
+	default n
 	help
 	  This FUSE extension allows to handle io requests directly inside kernel
 
@@ -37,6 +38,7 @@ config FUSE_KIO_NOOP
 config FUSE_KIO_NULLIO
 	tristate "Enable kdirect null io io engine"
 	depends on FUSE_FS
+	default n
 	help
 	  This FUSE extension allows to handle io requests directly inside kernel