kern: vfs: Add 'create' virtual file operation

The create VOP allows the caller to create a node within the parent
directory of a filesystem represented by a vnode.

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/src/sys/os/vfs_subr.c b/src/sys/os/vfs_subr.c
index 6cb7767..adfcffb 100644
--- a/src/sys/os/vfs_subr.c
+++ b/src/sys/os/vfs_subr.c
@@ -224,3 +224,25 @@ vop_reclaim(struct vnode *vp, int flags)
 
     return vops->reclaim(vp, flags);
 }
+
+int
+vop_create(struct vnode *vp, struct nameidata *ndp)
+{
+    struct vop *vops;
+    struct vop_create_args args;
+
+    if (vp == NULL || ndp == NULL) {
+        return -EINVAL;
+    }
+
+    if ((vops = vp->vops) == NULL) {
+        return -EIO;
+    }
+
+    if (vops->create == NULL) {
+        return -EIO;
+    }
+
+    args.ndp = ndp;
+    return vops->create(&args);
+}