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Kernel: Added unmount ability to VFS

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It is now possible to unmount file systems from the VFS via `umount`.
It works via looking up the `fsid` of the filesystem from the `Inode`'s
metatdata so I'm not sure how fragile it is. It seems to work for now
though as something to get us going.
This commit is contained in:
Jesse Buhagiar 2019-08-11 23:56:39 +10:00 • committed by Andreas Kling
parent f7251c74a9
commit bc22456f89
13 changed files with 98 additions and 3 deletions
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4
Kernel/FileSystem/FileSystem.h
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@ -8,8 +8,8 @@
#include <AK/Function.h>
#include <AK/HashMap.h>
#include <AK/OwnPtr.h>
#include <AK/RefPtr.h>
#include <AK/RefCounted.h>
#include <AK/RefPtr.h>
#include <AK/WeakPtr.h>
#include <AK/kstdio.h>
#include <Kernel/Devices/DiskDevice.h>
@ -45,6 +45,8 @@ public:
virtual unsigned total_inode_count() const { return 0; }
virtual unsigned free_inode_count() const { return 0; }
virtual KResult prepare_to_unmount() const { return KSuccess; }
struct DirectoryEntry {
DirectoryEntry(const char* name, InodeIdentifier, u8 file_type);
DirectoryEntry(const char* name, int name_length, InodeIdentifier, u8 file_type);