62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
/* VTreeFS - mount.c - by Alen Stojanov and David van Moolenbroek */
|
|
|
|
#include "inc.h"
|
|
#include <minix/vfsif.h>
|
|
|
|
/*===========================================================================*
|
|
* fs_mount *
|
|
*===========================================================================*/
|
|
int fs_mount(dev_t dev, unsigned int flags, struct fsdriver_node *root_node,
|
|
unsigned int *res_flags)
|
|
{
|
|
/* This function gets the root inode and sends back its details.
|
|
*/
|
|
struct inode *root;
|
|
|
|
/* Get the device number, for stat requests. */
|
|
fs_dev = dev;
|
|
|
|
/* The 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;
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* fs_unmount *
|
|
*===========================================================================*/
|
|
void fs_unmount(void)
|
|
{
|
|
/* Unmount the file system.
|
|
*/
|
|
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();
|
|
}
|