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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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6
Libraries/LibC/unistd.cpp
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@ -557,6 +557,12 @@ int mount(const char* device, const char* mountpoint)
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int umount(const char* mountpoint)
{
int rc = syscall(SC_umount, mountpoint);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
void dump_backtrace()
{
syscall(SC_dump_backtrace);