/* VTreeFS - mount.c - mounting and unmounting */

#include "inc.h"

#include <minix/vfsif.h>

/*

* Mount the file system. Obtain the root inode and send back its details.

*/

int

fs_mount(dev_t __unused dev, unsigned int flags,

struct fsdriver_node * root_node, unsigned int * res_flags)

{

struct inode *root;

/* VTreeFS must not be mounted as a root file system. */

if (flags & REQ_ISROOT)

return EINVAL;

/* Get the root inode and increase its reference count. */

root = get_root_inode();

ref_inode(root);

/* The system is now mounted. Call the initialization hook. */

if (vtreefs_hooks->init_hook != NULL)

vtreefs_hooks->init_hook();

/* Return the root inode's properties. */

root_node->fn_ino_nr = get_inode_number(root);

root_node->fn_mode = root->i_stat.mode;

root_node->fn_size = root->i_stat.size;

root_node->fn_uid = root->i_stat.uid;

root_node->fn_gid = root->i_stat.gid;

root_node->fn_dev = NO_DEV;

*res_flags = RES_NOFLAGS;

return OK;

}

/*

* Unmount the file system.

*/

void

fs_unmount(void)

{

struct inode *root;

/* Decrease the count of the root inode. */

root = get_root_inode();

put_inode(root);

/* The system is unmounted. Call the cleanup hook. */

if (vtreefs_hooks->cleanup_hook != NULL)

vtreefs_hooks->cleanup_hook();

}