NFS: Convert v4 into a module
This patch exports symbols needed by the v4 module. In addition, I also
switch over to using IS_ENABLED() to check if CONFIG_NFS_V4 or
CONFIG_NFS_V4_MODULE are set.
The module (nfs4.ko) will be created in the same directory as nfs.ko and
will be automatically loaded the first time you try to mount over NFS v4.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 55438c9..627f108 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -936,6 +936,7 @@
{
NFS_I(dir)->cache_change_attribute++;
}
+EXPORT_SYMBOL_GPL(nfs_force_lookup_revalidate);
/*
* A check for whether or not the parent directory has changed.
@@ -1267,7 +1268,7 @@
}
EXPORT_SYMBOL_GPL(nfs_lookup);
-#ifdef CONFIG_NFS_V4
+#if IS_ENABLED(CONFIG_NFS_V4)
static int nfs4_lookup_revalidate(struct dentry *, unsigned int);
const struct dentry_operations nfs4_dentry_operations = {
@@ -1277,6 +1278,7 @@
.d_automount = nfs_d_automount,
.d_release = nfs_d_release,
};
+EXPORT_SYMBOL_GPL(nfs4_dentry_operations);
static fmode_t flags_to_mode(int flags)
{
@@ -1419,6 +1421,7 @@
return finish_no_open(file, res);
}
+EXPORT_SYMBOL_GPL(nfs_atomic_open);
static int nfs4_lookup_revalidate(struct dentry *dentry, unsigned int flags)
{
@@ -2142,6 +2145,7 @@
{
return nfs_do_access(inode, cred, nfs_open_permission_mask(openflags));
}
+EXPORT_SYMBOL_GPL(nfs_may_open);
int nfs_permission(struct inode *inode, int mask)
{