Listing 1. Telling the Kernel to Mount the Filesystem Internally
static int get_mount (void)
{
struct vfsmount *mnt;
spin_lock (&mount_lock);
if (pcihpfs_mount) {
mntget(pcihpfs_mount);
++pcihpfs_mount_count;
spin_unlock (&mount_lock);
goto go_ahead;
}
spin_unlock (&mount_lock);
mnt = kern_mount (&pcihpfs_fs_type);
if (IS_ERR(mnt)) {
err ("could not mount the fs...
erroring out!\n");
return -ENODEV;
}
spin_lock (&mount_lock);
if (!pcihpfs_mount) {
pcihpfs_mount = mnt;
++pcihpfs_mount_count;
spin_unlock (&mount_lock);
goto go_ahead;
}
mntget(pcihpfs_mount);
++pcihpfs_mount_count;
spin_unlock (&mount_lock);
mntput(mnt);
go_ahead:
dbg("pcihpfs_mount_count = %d\n",
pcihpfs_mount_count);
return 0;
}
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