From: Bryan Schumaker <bjschuma@xxxxxxxxxx>
This patch exports symbols and moves over the final structures needed by
the v3 module. In addition, I also switch over to using IS_ENABLED() to
check if CONFIG_NFS_V3 or CONFIG_NFS_V3_MODULE are set.
The module will be created in the same directory as nfs.ko. You need to
run `modprobe nfs3` before you can use it.
Signed-off-by: Bryan Schumaker <bjschuma@xxxxxxxxxx>
---
fs/nfs/Kconfig | 2 +-
fs/nfs/Makefile | 6 +++-
fs/nfs/client.c | 18 -------------
fs/nfs/dir.c | 65 ++++++++++++++++-------------------------------
fs/nfs/direct.c | 2 +-
fs/nfs/file.c | 12 ---------
fs/nfs/inode.c | 5 +++
fs/nfs/nfs.h | 12 ++++++++-
fs/nfs/nfs3client.c | 15 ++++++++++-
fs/nfs/nfs3super.c | 39 ++++++++++++++++++++++++++++
fs/nfs/super.c | 6 ++--
fs/nfs/write.c | 8 +++---
include/linux/nfs_fs.h | 6 ++--
13 files changed, 107 insertions(+), 89 deletions(-)
create mode 100644 fs/nfs/dangling.txt
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index b28e56f..57c4b19 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -39,7 +39,7 @@ config NFS_V2
If unsure, say Y.
config NFS_V3
- bool "NFS client support for NFS version 3"
+ tristate "NFS client support for NFS version 3"
depends on NFS_FS
help
This option enables support for version 3 of the NFS protocol
diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile
index 6764e66..938db05 100644
--- a/fs/nfs/Makefile
+++ b/fs/nfs/Makefile
@@ -9,8 +9,6 @@ nfs-y := client.o dir.o file.o getroot.o inode.o super.o \
write.o namespace.o mount_clnt.o \
dns_resolve.o cache_lib.o
nfs-$(CONFIG_ROOT_NFS) += nfsroot.o
-nfs-$(CONFIG_NFS_V3) += nfs3super.o nfs3client.o nfs3proc.o nfs3xdr.o
-nfs-$(CONFIG_NFS_V3_ACL) += nfs3acl.o
nfs-$(CONFIG_NFS_V4) += nfs4proc.o nfs4xdr.o nfs4state.o nfs4renewd.o \
nfs4super.o delegation.o idmap.o \
callback.o callback_xdr.o callback_proc.o \
@@ -22,6 +20,10 @@ nfs-$(CONFIG_NFS_FSCACHE) += fscache.o fscache-index.o
obj-$(CONFIG_NFS_V2) += nfs2.o
nfs2-y += nfs2super.o proc.o nfs2xdr.o
+obj-$(CONFIG_NFS_V3) += nfs3.o
+nfs3-y += nfs3super.o nfs3client.o nfs3proc.o nfs3xdr.o
+nfs3-y += nfs3acl.o
+
obj-$(CONFIG_PNFS_FILE_LAYOUT) += nfs_layout_nfsv41_files.o
nfs_layout_nfsv41_files-y := nfs4filelayout.o nfs4filelayoutdev.o
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index ca3a408..75fe112 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -111,21 +111,6 @@ struct rpc_stat nfs_rpcstat = {
.program = &nfs_program
};
-#ifdef CONFIG_NFS_V3_ACL
-static struct rpc_stat nfsacl_rpcstat = { &nfsacl_program };
-static struct rpc_version *nfsacl_version[] = {
- [3] = &nfsacl_version3,
-};
-
-const struct rpc_program nfsacl_program = {
- .name = "nfsacl",
- .number = NFS_ACL_PROGRAM,
- .nrvers = ARRAY_SIZE(nfsacl_version),
- .version = nfsacl_version,
- .stats = &nfsacl_rpcstat,
-};
-#endif /* CONFIG_NFS_V3_ACL */
-
struct nfs_client_initdata {
const char *hostname;
const struct sockaddr *addr;
@@ -197,9 +182,6 @@ EXPORT_SYMBOL_GPL(unregister_nfs_version);
*/
void __init nfs_register_versions(void)
{
-#ifdef CONFIG_NFS_V3
- init_nfs_v3();
-#endif
#ifdef CONFIG_NFS_V4
init_nfs_v4();
#endif
diff --git a/fs/nfs/dangling.txt b/fs/nfs/dangling.txt
new file mode 100644
index 0000000..e69de29
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 0a2bf0e..07ed31d 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -41,22 +41,13 @@
#include "iostat.h"
#include "internal.h"
#include "fscache.h"
+#include "nfs.h"
/* #define NFS_DEBUG_VERBOSE 1 */
static int nfs_opendir(struct inode *, struct file *);
static int nfs_closedir(struct inode *, struct file *);
static int nfs_readdir(struct file *, void *, filldir_t);
-static struct dentry *nfs_lookup(struct inode *, struct dentry *, struct nameidata *);
-static int nfs_create(struct inode *, struct dentry *, umode_t, struct nameidata *);
-static int nfs_mkdir(struct inode *, struct dentry *, umode_t);
-static int nfs_rmdir(struct inode *, struct dentry *);
-static int nfs_unlink(struct inode *, struct dentry *);
-static int nfs_symlink(struct inode *, struct dentry *, const char *);
-static int nfs_link(struct dentry *, struct inode *, struct dentry *);
-static int nfs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
-static int nfs_rename(struct inode *, struct dentry *,
- struct inode *, struct dentry *);
static int nfs_fsync_dir(struct file *, loff_t, loff_t, int);
static loff_t nfs_llseek_dir(struct file *, loff_t, int);
static void nfs_readdir_clear_array(struct page*);
@@ -90,27 +81,6 @@ const struct address_space_operations nfs_dir_aops = {
.freepage = nfs_readdir_clear_array,
};
-#ifdef CONFIG_NFS_V3
-const struct inode_operations nfs3_dir_inode_operations = {
- .create = nfs_create,
- .lookup = nfs_lookup,
- .link = nfs_link,
- .unlink = nfs_unlink,
- .symlink = nfs_symlink,
- .mkdir = nfs_mkdir,
- .rmdir = nfs_rmdir,
- .mknod = nfs_mknod,
- .rename = nfs_rename,
- .permission = nfs_permission,
- .getattr = nfs_getattr,
- .setattr = nfs_setattr,
- .listxattr = nfs3_listxattr,
- .getxattr = nfs3_getxattr,
- .setxattr = nfs3_setxattr,
- .removexattr = nfs3_removexattr,
-};
-#endif /* CONFIG_NFS_V3 */
-
#ifdef CONFIG_NFS_V4
static struct dentry *nfs_atomic_lookup(struct inode *, struct dentry *, struct nameidata *);
@@ -1266,7 +1236,7 @@ const struct dentry_operations nfs_dentry_operations = {
};
EXPORT_SYMBOL_GPL(nfs_dentry_operations);
-static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd)
+struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd)
{
struct dentry *res;
struct dentry *parent;
@@ -1329,6 +1299,7 @@ out:
nfs_free_fhandle(fhandle);
return res;
}
+EXPORT_SYMBOL_GPL(nfs_lookup);
#ifdef CONFIG_NFS_V4
static int nfs_open_revalidate(struct dentry *, struct nameidata *);
@@ -1681,7 +1652,7 @@ EXPORT_SYMBOL_GPL(nfs_instantiate);
* that the operation succeeded on the server, but an error in the
* reply path made it appear to have failed.
*/
-static int nfs_create(struct inode *dir, struct dentry *dentry,
+int nfs_create(struct inode *dir, struct dentry *dentry,
umode_t mode, struct nameidata *nd)
{
struct iattr attr;
@@ -1705,12 +1676,12 @@ out_err:
d_drop(dentry);
return error;
}
+EXPORT_SYMBOL_GPL(nfs_create);
/*
* See comments for nfs_proc_create regarding failed operations.
*/
-static int
-nfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev)
+int nfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev)
{
struct iattr attr;
int status;
@@ -1732,11 +1703,12 @@ out_err:
d_drop(dentry);
return status;
}
+EXPORT_SYMBOL_GPL(nfs_mknod);
/*
* See comments for nfs_proc_create regarding failed operations.
*/
-static int nfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
+int nfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
struct iattr attr;
int error;
@@ -1755,6 +1727,7 @@ out_err:
d_drop(dentry);
return error;
}
+EXPORT_SYMBOL_GPL(nfs_mkdir);
static void nfs_dentry_handle_enoent(struct dentry *dentry)
{
@@ -1762,7 +1735,7 @@ static void nfs_dentry_handle_enoent(struct dentry *dentry)
d_delete(dentry);
}
-static int nfs_rmdir(struct inode *dir, struct dentry *dentry)
+int nfs_rmdir(struct inode *dir, struct dentry *dentry)
{
int error;
@@ -1778,6 +1751,7 @@ static int nfs_rmdir(struct inode *dir, struct dentry *dentry)
return error;
}
+EXPORT_SYMBOL_GPL(nfs_rmdir);
/*
* Remove a file after making sure there are no pending writes,
@@ -1821,7 +1795,7 @@ out:
*
* If sillyrename() returns 0, we do nothing, otherwise we unlink.
*/
-static int nfs_unlink(struct inode *dir, struct dentry *dentry)
+int nfs_unlink(struct inode *dir, struct dentry *dentry)
{
int error;
int need_rehash = 0;
@@ -1849,6 +1823,7 @@ static int nfs_unlink(struct inode *dir, struct dentry *dentry)
d_rehash(dentry);
return error;
}
+EXPORT_SYMBOL_GPL(nfs_unlink);
/*
* To create a symbolic link, most file systems instantiate a new inode,
@@ -1865,7 +1840,7 @@ static int nfs_unlink(struct inode *dir, struct dentry *dentry)
* now have a new file handle and can instantiate an in-core NFS inode
* and move the raw page into its mapping.
*/
-static int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
+int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
{
struct pagevec lru_pvec;
struct page *page;
@@ -1919,9 +1894,9 @@ static int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *sym
return 0;
}
+EXPORT_SYMBOL_GPL(nfs_symlink);
-static int
-nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
+int nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
{
struct inode *inode = old_dentry->d_inode;
int error;
@@ -1940,6 +1915,7 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
}
return error;
}
+EXPORT_SYMBOL_GPL(nfs_link);
/*
* RENAME
@@ -1965,8 +1941,8 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
* If these conditions are met, we can drop the dentries before doing
* the rename.
*/
-static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
+int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry)
{
struct inode *old_inode = old_dentry->d_inode;
struct inode *new_inode = new_dentry->d_inode;
@@ -2038,6 +2014,7 @@ out:
dput(dentry);
return error;
}
+EXPORT_SYMBOL_GPL(nfs_rename);
static DEFINE_SPINLOCK(nfs_access_lru_lock);
static LIST_HEAD(nfs_access_lru_list);
@@ -2138,6 +2115,7 @@ void nfs_access_zap_cache(struct inode *inode)
spin_unlock(&nfs_access_lru_lock);
nfs_access_free_list(&head);
}
+EXPORT_SYMBOL_GPL(nfs_access_zap_cache);
static struct nfs_access_entry *nfs_access_search_rbtree(struct inode *inode, struct rpc_cred *cred)
{
@@ -2357,6 +2335,7 @@ out_notsup:
res = generic_permission(inode, mask);
goto out;
}
+EXPORT_SYMBOL_GPL(nfs_permission);
/*
* Local variables:
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 1940f1a..185e177 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -460,7 +460,7 @@ static void nfs_direct_free_writedata(struct nfs_direct_req *dreq)
}
}
-#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
+#if IS_ENABLED(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
static void nfs_direct_write_reschedule(struct nfs_direct_req *dreq)
{
struct inode *inode = dreq->inode;
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 94af2db..c678c00 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -50,18 +50,6 @@ const struct inode_operations nfs_file_inode_operations = {
};
EXPORT_SYMBOL_GPL(nfs_file_inode_operations);
-#ifdef CONFIG_NFS_V3
-const struct inode_operations nfs3_file_inode_operations = {
- .permission = nfs_permission,
- .getattr = nfs_getattr,
- .setattr = nfs_setattr,
- .listxattr = nfs3_listxattr,
- .getxattr = nfs3_getxattr,
- .setxattr = nfs3_setxattr,
- .removexattr = nfs3_removexattr,
-};
-#endif /* CONFIG_NFS_v3 */
-
/* Hack for future NFS swap support */
#ifndef IS_SWAPFILE
# define IS_SWAPFILE(inode) (0)
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 773dfb9..a78d701 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -187,6 +187,7 @@ void nfs_zap_acl_cache(struct inode *inode)
NFS_I(inode)->cache_validity &= ~NFS_INO_INVALID_ACL;
spin_unlock(&inode->i_lock);
}
+EXPORT_SYMBOL_GPL(nfs_zap_acl_cache);
void nfs_invalidate_atime(struct inode *inode)
{
@@ -448,6 +449,7 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr)
out:
return error;
}
+EXPORT_SYMBOL_GPL(nfs_setattr);
/**
* nfs_vmtruncate - unmap mappings "freed" by truncate() syscall
@@ -545,6 +547,7 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
out:
return err;
}
+EXPORT_SYMBOL_GPL(nfs_getattr);
static void nfs_init_lock_context(struct nfs_lock_context *l_ctx)
{
@@ -851,6 +854,7 @@ int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
return NFS_STALE(inode) ? -ESTALE : 0;
return __nfs_revalidate_inode(server, inode);
}
+EXPORT_SYMBOL_GPL(nfs_revalidate_inode);
static int nfs_invalidate_mapping(struct inode *inode, struct address_space *mapping)
{
@@ -1147,6 +1151,7 @@ int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr)
spin_unlock(&inode->i_lock);
return status;
}
+EXPORT_SYMBOL_GPL(nfs_post_op_update_inode);
/**
* nfs_post_op_update_inode_force_wcc - try to update the inode attribute cache
diff --git a/fs/nfs/nfs.h b/fs/nfs/nfs.h
index 921e8c8..dccbcfc 100644
--- a/fs/nfs/nfs.h
+++ b/fs/nfs/nfs.h
@@ -30,7 +30,6 @@ struct nfs_subversion {
};
void nfs_register_versions(void);
-int init_nfs_v3(void);
int init_nfs_v4(void);
struct nfs_subversion *get_nfs_version(unsigned int);
@@ -42,6 +41,17 @@ void unregister_nfs_version(struct nfs_subversion *);
/* Exported in client.c */
struct nfs_server *nfs_create_server(const struct nfs_parsed_mount_data *, struct nfs_fh *);
+/* Exported in dir.c */
+struct dentry *nfs_lookup(struct inode *, struct dentry *, struct nameidata *);
+int nfs_create(struct inode *, struct dentry *, umode_t, struct nameidata *);
+int nfs_mkdir(struct inode *, struct dentry *, umode_t);
+int nfs_rmdir(struct inode *, struct dentry *);
+int nfs_unlink(struct inode *, struct dentry *);
+int nfs_symlink(struct inode *, struct dentry *, const char *);
+int nfs_link(struct dentry *, struct inode *, struct dentry *);
+int nfs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
+int nfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *);
+
/* Exported in super.c */
extern struct file_system_type nfs_fs_type;
struct dentry *_nfs_fs_mount(struct file_system_type *, struct nfs_server *,
diff --git a/fs/nfs/nfs3client.c b/fs/nfs/nfs3client.c
index f23fc46..f246cbd 100644
--- a/fs/nfs/nfs3client.c
+++ b/fs/nfs/nfs3client.c
@@ -12,10 +12,23 @@
#include "internal.h"
#include "nfs.h"
+#ifdef CONFIG_NFS_V3_ACL
+static struct rpc_stat nfsacl_rpcstat = { &nfsacl_program };
+static struct rpc_version *nfsacl_version[] = {
+ [3] = &nfsacl_version3,
+};
+
+const struct rpc_program nfsacl_program = {
+ .name = "nfsacl",
+ .number = NFS_ACL_PROGRAM,
+ .nrvers = ARRAY_SIZE(nfsacl_version),
+ .version = nfsacl_version,
+ .stats = &nfsacl_rpcstat,
+};
+
/*
* Initialise an NFSv3 ACL client connection
*/
-#ifdef CONFIG_NFS_V3_ACL
static void nfs_init_server_aclclient(struct nfs_server *server)
{
if (server->flags & NFS_MOUNT_NOACL)
diff --git a/fs/nfs/nfs3super.c b/fs/nfs/nfs3super.c
index 5702895..474840f 100644
--- a/fs/nfs/nfs3super.c
+++ b/fs/nfs/nfs3super.c
@@ -41,6 +41,35 @@ static struct dentry *nfs3_xdev_mount(int flags, const char *dev_name,
return _nfs_xdev_mount(&nfs_fs_type, server, flags, dev_name, data, NFS_MOUNT_UNSHARED);
}
+const struct inode_operations nfs3_file_inode_operations = {
+ .permission = nfs_permission,
+ .getattr = nfs_getattr,
+ .setattr = nfs_setattr,
+ .listxattr = nfs3_listxattr,
+ .getxattr = nfs3_getxattr,
+ .setxattr = nfs3_setxattr,
+ .removexattr = nfs3_removexattr,
+};
+
+const struct inode_operations nfs3_dir_inode_operations = {
+ .create = nfs_create,
+ .lookup = nfs_lookup,
+ .link = nfs_link,
+ .unlink = nfs_unlink,
+ .symlink = nfs_symlink,
+ .mkdir = nfs_mkdir,
+ .rmdir = nfs_rmdir,
+ .mknod = nfs_mknod,
+ .rename = nfs_rename,
+ .permission = nfs_permission,
+ .getattr = nfs_getattr,
+ .setattr = nfs_setattr,
+ .listxattr = nfs3_listxattr,
+ .getxattr = nfs3_getxattr,
+ .setxattr = nfs3_setxattr,
+ .removexattr = nfs3_removexattr,
+};
+
static struct nfs_subversion nfs_v3 = {
.version = 3,
.rpc_vers = &nfs_version3,
@@ -57,3 +86,13 @@ int __init init_nfs_v3(void)
register_nfs_version(&nfs_v3);
return 0;
}
+
+static void __exit exit_nfs_v3(void)
+{
+ unregister_nfs_version(&nfs_v3);
+}
+
+MODULE_LICENSE("GPL");
+
+module_init(init_nfs_v3);
+module_exit(exit_nfs_v3);
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index ec5287d..88bbebe 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -68,7 +68,7 @@
#define NFSDBG_FACILITY NFSDBG_VFS
-#ifdef CONFIG_NFS_V3
+#if IS_ENABLED(CONFIG_NFS_V3)
#define NFS_DEFAULT_VERSION 3
#else
#define NFS_DEFAULT_VERSION 2
@@ -1910,7 +1910,7 @@ static int nfs_validate_mount_data(void *options,
}
}
-#ifndef CONFIG_NFS_V3
+#if !IS_ENABLED(CONFIG_NFS_V3)
if (args->version == 3)
goto out_v3_not_compiled;
#endif /* !CONFIG_NFS_V3 */
@@ -1930,7 +1930,7 @@ out_no_sec:
dfprintk(MOUNT, "NFS: nfs_mount_data version supports only AUTH_SYS\n");
return -EINVAL;
-#ifndef CONFIG_NFS_V3
+#if !IS_ENABLED(CONFIG_NFS_V3)
out_v3_not_compiled:
dfprintk(MOUNT, "NFS: NFSv3 is not compiled into kernel\n");
return -EPROTONOSUPPORT;
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 0b1831d..b8111cb 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -431,7 +431,7 @@ nfs_mark_request_dirty(struct nfs_page *req)
__set_page_dirty_nobuffers(req->wb_page);
}
-#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
+#if IS_ENABLED(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
/*
* Add a request to the inode's commit list.
*/
@@ -516,7 +516,7 @@ int nfs_reschedule_unstable_write(struct nfs_page *req,
}
#endif
-#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
+#if IS_ENABLED(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
static int
nfs_need_commit(struct nfs_inode *nfsi)
{
@@ -1238,7 +1238,7 @@ void nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
return;
nfs_add_stats(data->inode, NFSIOS_SERVERWRITTENBYTES, resp->count);
-#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
+#if IS_ENABLED(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
if (resp->verf->committed < argp->stable && task->tk_status >= 0) {
/* We tried a write call, but the server did not
* commit data to stable storage even though we
@@ -1297,7 +1297,7 @@ void nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
}
-#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
+#if IS_ENABLED(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
static int nfs_commit_set_lock(struct nfs_inode *nfsi, int may_wait)
{
int ret;
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 8c29950..766ea02 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -406,7 +406,7 @@ extern __be32 root_nfs_parse_addr(char *name); /*__init*/
* linux/fs/nfs/file.c
*/
extern const struct inode_operations nfs_file_inode_operations;
-#ifdef CONFIG_NFS_V3
+#if IS_ENABLED(CONFIG_NFS_V3)
extern const struct inode_operations nfs3_file_inode_operations;
#endif /* CONFIG_NFS_V3 */
extern const struct file_operations nfs_file_operations;
@@ -464,7 +464,7 @@ extern ssize_t nfs_file_direct_write(struct kiocb *iocb,
* linux/fs/nfs/dir.c
*/
extern const struct inode_operations nfs_dir_inode_operations;
-#ifdef CONFIG_NFS_V3
+#if IS_ENABLED(CONFIG_NFS_V3)
extern const struct inode_operations nfs3_dir_inode_operations;
#endif /* CONFIG_NFS_V3 */
extern const struct file_operations nfs_dir_operations;
@@ -524,7 +524,7 @@ extern void nfs_writeback_done(struct rpc_task *, struct nfs_write_data *);
extern int nfs_wb_all(struct inode *inode);
extern int nfs_wb_page(struct inode *inode, struct page* page);
extern int nfs_wb_page_cancel(struct inode *inode, struct page* page);
-#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
+#if IS_ENABLED(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
extern int nfs_commit_inode(struct inode *, int);
extern struct nfs_write_data *nfs_commitdata_alloc(void);
extern void nfs_commit_free(struct nfs_write_data *wdata);
--
1.7.9
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