ba736c7968
- move MINIX3-specific files into minix/lib/libpuffs; - resynchronize the remaining files with NetBSD code; - remove a few unnecessary changes; - put remaining MINIX3-specific changes in __minix blocks; - sort out the source files being linked at all. The result is that libpuffs now successfully links against FUSE file system programs again. It can successfully mount, perform some of the most basic operations, and unmount the file system. Change-Id: Ieac220f7ad8c4d1fa293abda81967e8045be0bb4
88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
/* Created (MFS based):
|
|
* June 2011 (Evgeniy Ivanov)
|
|
*/
|
|
|
|
#include "fs.h"
|
|
#include <fcntl.h>
|
|
#include <minix/vfsif.h>
|
|
|
|
/*===========================================================================*
|
|
* fs_mount *
|
|
*===========================================================================*/
|
|
int fs_mount(dev_t __unused dev, unsigned int flags,
|
|
struct fsdriver_node *root_node, unsigned int *res_flags)
|
|
{
|
|
struct vattr *root_va;
|
|
|
|
is_readonly_fs = !!(flags & REQ_RDONLY);
|
|
|
|
/* Open root pnode */
|
|
global_pu->pu_pn_root->pn_count = 1;
|
|
|
|
/* Root pnode properties */
|
|
root_va = &global_pu->pu_pn_root->pn_va;
|
|
root_node->fn_ino_nr = root_va->va_fileid;
|
|
root_node->fn_mode = root_va->va_mode;
|
|
root_node->fn_size = root_va->va_size;
|
|
root_node->fn_uid = root_va->va_uid;
|
|
root_node->fn_gid = root_va->va_gid;
|
|
root_node->fn_dev = NO_DEV;
|
|
|
|
*res_flags = RES_NOFLAGS;
|
|
|
|
mounted = TRUE;
|
|
|
|
return(OK);
|
|
}
|
|
|
|
|
|
/*===========================================================================*
|
|
* fs_mountpt *
|
|
*===========================================================================*/
|
|
int fs_mountpt(ino_t ino_nr)
|
|
{
|
|
/* This function looks up the mount point, it checks the condition whether
|
|
* the partition can be mounted on the pnode or not.
|
|
*/
|
|
int r = OK;
|
|
struct puffs_node *pn;
|
|
mode_t bits;
|
|
|
|
if ((pn = puffs_pn_nodewalk(global_pu, find_inode_cb, &ino_nr)) == NULL)
|
|
return(EINVAL);
|
|
|
|
if (pn->pn_mountpoint) r = EBUSY;
|
|
|
|
/* It may not be special. */
|
|
bits = pn->pn_va.va_mode & I_TYPE;
|
|
if(bits == I_BLOCK_SPECIAL || bits == I_CHAR_SPECIAL) r = ENOTDIR;
|
|
|
|
if (r == OK)
|
|
pn->pn_mountpoint = TRUE;
|
|
|
|
return(r);
|
|
}
|
|
|
|
|
|
/*===========================================================================*
|
|
* fs_unmount *
|
|
*===========================================================================*/
|
|
void fs_unmount(void)
|
|
{
|
|
int error;
|
|
|
|
/* Always force unmounting, as VFS will not tolerate failure. */
|
|
error = global_pu->pu_ops.puffs_fs_unmount(global_pu, MNT_FORCE);
|
|
if (error) {
|
|
lpuffs_debug("user handler failed to unmount filesystem!\
|
|
Force unmount!\n");
|
|
}
|
|
|
|
fs_sync();
|
|
|
|
/* Finish off the unmount. */
|
|
PU_SETSTATE(global_pu, PUFFS_STATE_UNMOUNTED);
|
|
mounted = FALSE;
|
|
global_pu->pu_pn_root->pn_count--;
|
|
}
|