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/* 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();
}
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