From 5500b880eabb042d97e2a6bf7495d872f20dcf98 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@linux.intel.com>
Date: Tue, 10 Apr 2018 23:16:42 +0100
Subject: [PATCH] superblock: get the kernel inoptr out of the superblock

Put it in the memory only area where it belongs
---
 Kernel/filesys.c        | 6 +++---
 Kernel/include/kernel.h | 2 +-
 Kernel/syscall_other.c  | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/Kernel/filesys.c b/Kernel/filesys.c
index 675995db..247f6141 100644
--- a/Kernel/filesys.c
+++ b/Kernel/filesys.c
@@ -112,7 +112,7 @@ inoptr n_open(char *namep, inoptr *parent)
                 name += 2;
                 continue;
             }
-            temp = fs_tab[wd->c_super].m_fs.s_mntpt;
+            temp = fs_tab[wd->c_super].m_mntpt;
             ++temp->c_refs;
             i_deref(wd);
             wd = temp;
@@ -193,7 +193,7 @@ inoptr srch_mt(inoptr ino)
     struct mount *m = &fs_tab[0];
 
     for(j=0; j < NMOUNTS; ++j){
-        if(m->m_dev != NO_DEVICE &&  m->m_fs.s_mntpt == ino) {
+        if(m->m_dev != NO_DEVICE &&  m->m_mntpt == ino) {
             i_deref(ino);
             return i_open(m->m_dev, ROOTINODE);
         }
@@ -1282,7 +1282,7 @@ bool fmount(uint16_t dev, inoptr ino, uint16_t flags)
         fp->s_fmod = FMOD_DIRTY;
     else	/* Clean in memory, don't write it back to media */
         fp->s_fmod = FMOD_CLEAN;
-    fp->s_mntpt = ino;
+    m->m_mntpt = ino;
     if(ino)
         ++ino->c_refs;
     m->m_flags = flags;
diff --git a/Kernel/include/kernel.h b/Kernel/include/kernel.h
index a736262d..9fa75e8d 100644
--- a/Kernel/include/kernel.h
+++ b/Kernel/include/kernel.h
@@ -338,7 +338,6 @@ typedef struct filesys { // note: exists in mem and on disk
     uint8_t	  s_shift;	/* Extent size */
     uint8_t	  s_reserved;
     /* Below this is only used in memory so alignments don't matter */
-    inoptr        s_mntpt;     /* Mount point */
     /* TODO: Add geometry hints and support > 512 byte blocks */
 } filesys, *fsptr;
 
@@ -353,6 +352,7 @@ typedef struct oft {
 struct mount {
     uint16_t m_dev;
     uint16_t m_flags;
+    inoptr   m_mntpt;     /* Mount point */
     struct filesys m_fs;
 };
 #define MS_RDONLY	1
diff --git a/Kernel/syscall_other.c b/Kernel/syscall_other.c
index 3e9efbca..69fab02f 100644
--- a/Kernel/syscall_other.c
+++ b/Kernel/syscall_other.c
@@ -435,7 +435,7 @@ static int do_umount(uint16_t dev)
 		return 0;
 	}
 
-	i_deref(mnt->m_fs.s_mntpt);
+	i_deref(mnt->m_mntpt);
 	/* Vanish the entry */
 	mnt->m_dev = NO_DEVICE;
 	return 0;
-- 
2.34.1