linux-stable/fs/quota/quotaio_v1.h
Arnd Bergmann 1ead083ae1 quota: avoid time_t in v1_disk_dqblk definition
The time_t type is part of the user interface and not always the
same, with the move to 64-bit timestamps and the difference between
architectures.

Make the quota format definition independent of this type and use
a basic type of the same length. Make it unsigned in the process
to keep the v1 format working until year 2106 instead of 2038
on 32-bit architectures.

Hopefully, everybody has already moved to a newer format long
ago (v2 was introduced with linux-2.4), but it's hard to be sure.

Link: https://lore.kernel.org/r/20191213205221.3787308-6-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jan Kara <jack@suse.cz>
2019-12-16 14:15:30 +01:00

36 lines
1.4 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_QUOTAIO_V1_H
#define _LINUX_QUOTAIO_V1_H
#include <linux/types.h>
/*
* The following constants define the amount of time given a user
* before the soft limits are treated as hard limits (usually resulting
* in an allocation failure). The timer is started when the user crosses
* their soft limit, it is reset when they go below their soft limit.
*/
#define MAX_IQ_TIME 604800 /* (7*24*60*60) 1 week */
#define MAX_DQ_TIME 604800 /* (7*24*60*60) 1 week */
/*
* The following structure defines the format of the disk quota file
* (as it appears on disk) - the file is an array of these structures
* indexed by user or group number.
*/
struct v1_disk_dqblk {
__u32 dqb_bhardlimit; /* absolute limit on disk blks alloc */
__u32 dqb_bsoftlimit; /* preferred limit on disk blks */
__u32 dqb_curblocks; /* current block count */
__u32 dqb_ihardlimit; /* absolute limit on allocated inodes */
__u32 dqb_isoftlimit; /* preferred inode limit */
__u32 dqb_curinodes; /* current # allocated inodes */
/* below fields differ in length on 32-bit vs 64-bit architectures */
unsigned long dqb_btime; /* time limit for excessive disk use */
unsigned long dqb_itime; /* time limit for excessive inode use */
};
#define v1_dqoff(UID) ((loff_t)((UID) * sizeof (struct v1_disk_dqblk)))
#endif /* _LINUX_QUOTAIO_V1_H */