kernel: vfs: Allow optional fs store within vnode

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

2 files changed, 5 insertions, 1 deletions

diff --git a/sys/include/sys/vnode.h b/sys/include/sys/vnode.h
index f584356..545e38f 100644
--- a/sys/include/sys/vnode.h
+++ b/sys/include/sys/vnode.h
@@ -47,6 +47,7 @@ struct vnode {
     struct mount *mp;   /* Ptr to vfs vnode is in */
     struct vops *vops;
     struct vnode *parent;
+    struct fs_info *fs; /* Filesystem this vnode belongs to, can be NULL */
     void *data;         /* Filesystem specific data */
 };
 
diff --git a/sys/kern/vfs_init.c b/sys/kern/vfs_init.c
index 18ab3ac..0d8d194 100644
--- a/sys/kern/vfs_init.c
+++ b/sys/kern/vfs_init.c
@@ -40,8 +40,10 @@ __MODULE_NAME("vfs");
 __KERNEL_META("$Hyra$: vfs.c, Ian Marco Moffett, "
               "Hyra Virtual File System");
 
+#define INITRAMFS_ID 0
+
 static struct fs_info filesystems[] = {
-    { "initramfs", &g_initramfs_ops }
+    [INITRAMFS_ID] = { "initramfs", &g_initramfs_ops }
 };
 
 struct vnode *g_root_vnode = NULL;
@@ -76,4 +78,5 @@ vfs_init(void)
     }
 
     g_root_vnode->vops = &g_initramfs_vops;
+    g_root_vnode->fs = &filesystems[INITRAMFS_ID];
 }