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/*
*
* Definitions for mount interface. This describes the in the kernel build
* linkedlist with mounted filesystems.
*
* Author: Marco van Wieringen <mvw@planets.elm.net>
*
* Version: $Id: mount.h,v 2.0 1996/11/17 16:48:14 mvw Exp mvw $
*
*/
#ifndef _LINUX_MOUNT_H
#define _LINUX_MOUNT_H
#define DQUOT_USR_ENABLED 0x01 /* User diskquotas enabled */
#define DQUOT_GRP_ENABLED 0x02 /* Group diskquotas enabled */
struct quota_mount_options
{
unsigned int flags; /* Flags for diskquotas on this device */
struct semaphore dqio_sem; /* lock device while I/O in progress */
struct semaphore dqoff_sem; /* serialize quota_off() and quota_on() on device */
struct file *files[MAXQUOTAS]; /* fp's to quotafiles */
time_t inode_expire[MAXQUOTAS]; /* expiretime for inode-quota */
time_t block_expire[MAXQUOTAS]; /* expiretime for block-quota */
char rsquash[MAXQUOTAS]; /* for quotas treat root as any other user */
};
struct vfsmount
{
kdev_t mnt_dev; /* Device this applies to */
char *mnt_devname; /* Name of device e.g. /dev/dsk/hda1 */
char *mnt_dirname; /* Name of directory mounted on */
unsigned int mnt_flags; /* Flags of this device */
struct super_block *mnt_sb; /* pointer to superblock */
struct quota_mount_options mnt_dquot; /* Diskquota specific mount options */
struct vfsmount *mnt_next; /* pointer to next in linkedlist */
};
struct vfsmount *lookup_vfsmnt(kdev_t dev);
/*
* Umount options
*/
#define MNT_FORCE 0x00000001 /* Attempt to forcibily umount */
#endif /* _LINUX_MOUNT_H */
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