1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef _LINUX_STATFS_H |
3 | #define _LINUX_STATFS_H |
4 | |
5 | #include <linux/types.h> |
6 | #include <asm/statfs.h> |
7 | |
8 | struct kstatfs { |
9 | long f_type; |
10 | long f_bsize; |
11 | u64 f_blocks; |
12 | u64 f_bfree; |
13 | u64 f_bavail; |
14 | u64 f_files; |
15 | u64 f_ffree; |
16 | __kernel_fsid_t f_fsid; |
17 | long f_namelen; |
18 | long f_frsize; |
19 | long f_flags; |
20 | long f_spare[4]; |
21 | }; |
22 | |
23 | /* |
24 | * Definitions for the flag in f_flag. |
25 | * |
26 | * Generally these flags are equivalent to the MS_ flags used in the mount |
27 | * ABI. The exception is ST_VALID which has the same value as MS_REMOUNT |
28 | * which doesn't make any sense for statfs. |
29 | */ |
30 | #define ST_RDONLY 0x0001 /* mount read-only */ |
31 | #define ST_NOSUID 0x0002 /* ignore suid and sgid bits */ |
32 | #define ST_NODEV 0x0004 /* disallow access to device special files */ |
33 | #define ST_NOEXEC 0x0008 /* disallow program execution */ |
34 | #define ST_SYNCHRONOUS 0x0010 /* writes are synced at once */ |
35 | #define ST_VALID 0x0020 /* f_flags support is implemented */ |
36 | #define ST_MANDLOCK 0x0040 /* allow mandatory locks on an FS */ |
37 | /* 0x0080 used for ST_WRITE in glibc */ |
38 | /* 0x0100 used for ST_APPEND in glibc */ |
39 | /* 0x0200 used for ST_IMMUTABLE in glibc */ |
40 | #define ST_NOATIME 0x0400 /* do not update access times */ |
41 | #define ST_NODIRATIME 0x0800 /* do not update directory access times */ |
42 | #define ST_RELATIME 0x1000 /* update atime relative to mtime/ctime */ |
43 | |
44 | struct dentry; |
45 | extern int vfs_get_fsid(struct dentry *dentry, __kernel_fsid_t *fsid); |
46 | |
47 | #endif |
48 | |