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