62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LINUX_STATFS_H
|
|
#define _LINUX_STATFS_H
|
|
|
|
#include <linux/types.h>
|
|
#include <asm/statfs.h>
|
|
#include <asm/byteorder.h>
|
|
|
|
struct kstatfs {
|
|
long f_type;
|
|
long f_bsize;
|
|
u64 f_blocks;
|
|
u64 f_bfree;
|
|
u64 f_bavail;
|
|
u64 f_files;
|
|
u64 f_ffree;
|
|
__kernel_fsid_t f_fsid;
|
|
long f_namelen;
|
|
long f_frsize;
|
|
long f_flags;
|
|
long f_spare[4];
|
|
};
|
|
|
|
/*
|
|
* Definitions for the flag in f_flag.
|
|
*
|
|
* Generally these flags are equivalent to the MS_ flags used in the mount
|
|
* ABI. The exception is ST_VALID which has the same value as MS_REMOUNT
|
|
* which doesn't make any sense for statfs.
|
|
*/
|
|
#define ST_RDONLY 0x0001 /* mount read-only */
|
|
#define ST_NOSUID 0x0002 /* ignore suid and sgid bits */
|
|
#define ST_NODEV 0x0004 /* disallow access to device special files */
|
|
#define ST_NOEXEC 0x0008 /* disallow program execution */
|
|
#define ST_SYNCHRONOUS 0x0010 /* writes are synced at once */
|
|
#define ST_VALID 0x0020 /* f_flags support is implemented */
|
|
#define ST_MANDLOCK 0x0040 /* allow mandatory locks on an FS */
|
|
/* 0x0080 used for ST_WRITE in glibc */
|
|
/* 0x0100 used for ST_APPEND in glibc */
|
|
/* 0x0200 used for ST_IMMUTABLE in glibc */
|
|
#define ST_NOATIME 0x0400 /* do not update access times */
|
|
#define ST_NODIRATIME 0x0800 /* do not update directory access times */
|
|
#define ST_RELATIME 0x1000 /* update atime relative to mtime/ctime */
|
|
#define ST_NOSYMFOLLOW 0x2000 /* do not follow symlinks */
|
|
|
|
struct dentry;
|
|
extern int vfs_get_fsid(struct dentry *dentry, __kernel_fsid_t *fsid);
|
|
|
|
static inline __kernel_fsid_t u64_to_fsid(u64 v)
|
|
{
|
|
return (__kernel_fsid_t){.val = {(u32)v, (u32)(v>>32)}};
|
|
}
|
|
|
|
/* Fold 16 bytes uuid to 64 bit fsid */
|
|
static inline __kernel_fsid_t uuid_to_fsid(__u8 *uuid)
|
|
{
|
|
return u64_to_fsid(le64_to_cpup((void *)uuid) ^
|
|
le64_to_cpup((void *)(uuid + sizeof(u64))));
|
|
}
|
|
|
|
#endif
|