[PATCH 5/7 linux-next] coda: remove sysctl object from module when unused

From: Fabian Frederick
Date: Fri Oct 19 2018 - 04:20:19 EST


Inspired by NFS sysctl process

Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
---
fs/coda/Makefile | 3 ++-
fs/coda/coda_int.h | 10 ++++++++++
fs/coda/coda_linux.h | 4 ----
fs/coda/sysctl.c | 11 -----------
4 files changed, 12 insertions(+), 16 deletions(-)

diff --git a/fs/coda/Makefile b/fs/coda/Makefile
index 1bab69a..30e4e1b 100644
--- a/fs/coda/Makefile
+++ b/fs/coda/Makefile
@@ -5,7 +5,8 @@
obj-$(CONFIG_CODA_FS) += coda.o

coda-objs := psdev.o cache.o cnode.o inode.o dir.o file.o upcall.o \
- coda_linux.o symlink.o pioctl.o sysctl.o
+ coda_linux.o symlink.o pioctl.o
+coda-$(CONFIG_SYSCTL) += sysctl.o

# If you want debugging output, please uncomment the following line.

diff --git a/fs/coda/coda_int.h b/fs/coda/coda_int.h
index bb0b3e0..f82b59c 100644
--- a/fs/coda/coda_int.h
+++ b/fs/coda/coda_int.h
@@ -13,9 +13,19 @@ extern int coda_fake_statfs;
void coda_destroy_inodecache(void);
int __init coda_init_inodecache(void);
int coda_fsync(struct file *coda_file, loff_t start, loff_t end, int datasync);
+
+#ifdef CONFIG_SYSCTL
void coda_sysctl_init(void);
void coda_sysctl_clean(void);
+#else
+static inline void coda_sysctl_init(void)
+{
+}

+static inline void coda_sysctl_clean(void)
+{
+}
+#endif
#endif /* _CODA_INT_ */


diff --git a/fs/coda/coda_linux.h b/fs/coda/coda_linux.h
index 903f2a3..4087264 100644
--- a/fs/coda/coda_linux.h
+++ b/fs/coda/coda_linux.h
@@ -59,10 +59,6 @@ void coda_vattr_to_iattr(struct inode *, struct coda_vattr *);
void coda_iattr_to_vattr(struct iattr *, struct coda_vattr *);
unsigned short coda_flags_to_cflags(unsigned short);

-/* sysctl.h */
-void coda_sysctl_init(void);
-void coda_sysctl_clean(void);
-
#define CODA_ALLOC(ptr, cast, size) do { \
if (size < PAGE_SIZE) \
ptr = kzalloc((unsigned long) size, GFP_KERNEL); \
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
index 0301d45..fda3b70 100644
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -12,7 +12,6 @@

#include "coda_int.h"

-#ifdef CONFIG_SYSCTL
static struct ctl_table_header *fs_table_header;

static struct ctl_table coda_table[] = {
@@ -62,13 +61,3 @@ void coda_sysctl_clean(void)
fs_table_header = NULL;
}
}
-
-#else
-void coda_sysctl_init(void)
-{
-}
-
-void coda_sysctl_clean(void)
-{
-}
-#endif
--
2.4.11