[GFS2/DLM] use sysfs

With CONFIG_DLM=m, CONFIG_PROC_FS=n, and CONFIG_SYSFS=n, kernel build
fails with:

WARNING: "kernel_subsys" [fs/gfs2/locking/dlm/lock_dlm.ko] undefined!
WARNING: "kernel_subsys" [fs/dlm/dlm.ko] undefined!
WARNING: "kernel_subsys" [fs/configfs/configfs.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2

Since fs/dlm/lockspace.c and fs/gfs2/locking/dlm/sysfs.c use
kernel_subsys, they should either DEPEND on it or SELECT it.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

2 files changed, 2 insertions, 0 deletions

diff --git a/fs/dlm/Kconfig b/fs/dlm/Kconfig
index b5654a284fef..d1359b91410a 100644
--- a/fs/dlm/Kconfig
+++ b/fs/dlm/Kconfig
@@ -5,6 +5,7 @@ config DLM
         tristate "Distributed Lock Manager (DLM)"
         depends on IPV6 || IPV6=n
         select CONFIGFS_FS
+        select SYSFS
         select IP_SCTP if DLM_SCTP
         help
         A general purpose distributed lock manager for kernel or userspace
diff --git a/fs/gfs2/Kconfig b/fs/gfs2/Kconfig
index 6a2ffa2db14f..2c184a97cb12 100644
--- a/fs/gfs2/Kconfig
+++ b/fs/gfs2/Kconfig
@@ -38,6 +38,7 @@ config GFS2_FS_LOCKING_DLM
         select IP_SCTP if DLM_SCTP
         select CONFIGFS_FS
         select DLM
+        select SYSFS
         help
         Multiple node locking module for GFS2