Volume-centric VFS implementation

kernel/amd64/bootmain.c

@@ -57,7 +57,7 @@ void bootmain (void) {
 
   struct device* ramdisk_device = device_find (RAMDISK_DEVICE);
   struct reschedule_ctx rctx = {.cpu = thiscpu, .reschedule = false};
-  int ret = vfs_create_mountpoint ("ramdisk", VFS_TARFS, ramdisk_device, NULL, &rctx);
+  int ret = vfs_create_volume ("ramdisk", VFS_TARFS, ramdisk_device, NULL, &rctx);
 
   if (ret < 0) {
     DEBUG ("could not mount ramdisk! (%d)\n", ret);

kernel/amd64/proc.c

@@ -1,6 +1,7 @@
 #include <amd64/gdt.h>
 #include <amd64/proc.h>
 #include <aux/elf.h>
+#include <fs/vfs.h>
 #include <libk/align.h>
 #include <libk/list.h>
 #include <libk/rbtree.h>
@@ -116,6 +117,7 @@ void proc_cleanup (struct proc* proc, struct reschedule_ctx* rctx) {
 
   procgroup_detach (proc->procgroup, proc, rctx);
 
+  vfs_volume_close (proc, proc->cwv, rctx);
   proc_free_pid (proc->pid);
   /* clean the process */
   free (proc);

kernel/amd64/smp.c

@@ -5,6 +5,7 @@
 #include <amd64/mm.h>
 #include <amd64/msr-index.h>
 #include <amd64/msr.h>
+#include <fs/vfs.h>
 #include <libk/std.h>
 #include <libk/string.h>
 #include <limine/requests.h>
@@ -99,7 +100,9 @@ static void smp_bootstrap (struct limine_mp_info* mp_info) {
 
   atomic_fetch_sub (&cpu_counter, 1);
 
-  struct proc* spin_proc = proc_from_file (NULL, "ramdisk", "/spin");
+  struct reschedule_ctx rctx = {.cpu = NULL, .reschedule = false};
+
+  struct proc* spin_proc = proc_from_file (VFS_KERNEL, "ramdisk", "/spin", &rctx);
   proc_register (spin_proc, thiscpu, NULL);
 
   spin_lock (&spin_proc->cpu->lock);