1 .\" Copyright (C) 2003 Andries Brouwer (aeb@cwi.nl)
3 .\" Permission is granted to make and distribute verbatim copies of this
4 .\" manual provided the copyright notice and this permission notice are
5 .\" preserved on all copies.
7 .\" Permission is granted to copy and distribute modified versions of this
8 .\" manual under the conditions for verbatim copying, provided that the
9 .\" entire resulting derived work is distributed under the terms of a
10 .\" permission notice identical to this one.
12 .\" Since the Linux kernel and libraries are constantly changing, this
13 .\" manual page may be incorrect or out-of-date. The author(s) assume no
14 .\" responsibility for errors or omissions, or for damages resulting from
15 .\" the use of the information contained herein. The author(s) may not
16 .\" have taken the same level of care in the production of this manual,
17 .\" which is licensed free of charge, as they might when working
20 .\" Formatted or processed versions of this manual, if unaccompanied by
21 .\" the source, must acknowledge the copyright and authors of this work.
23 .\" Modified 2003-08-17 by Walter Harms
24 .\" Modified 2004-06-23 by Michael Kerrisk <mtk.manpages@gmail.com>
26 .\" Japanese Version Copyright (c) 1997 HANATAKA Shinya
27 .\" all rights reserved.
28 .\" Translated Fri Dec 12 00:25:54 JST 1997
29 .\" by HANATAKA Shinya <hanataka@abyss.rim.or.jp>
30 .\" Updated & Modified Sat Jun 2 20:25:46 JST 2001
31 .\" by Yuichi SATO <ysato@h4.dion.ne.jp>
32 .\" Updated & Modified Sat Jan 18 16:48:08 JST 2003
33 .\" by Yuichi SATO <ysato444@yahoo.co.jp>
34 .\" Updated & Modified Sun Sep 7 00:52:44 JST 2003 by Yuichi SATO
35 .\" Updated & Modified Sun Jan 9 22:35:28 JST 2005 by Yuichi SATO
36 .\" Updated 2006-07-21, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>, LDP v2.36
38 .\"WORD: file system ¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à
39 .\"WORD: mount ¥Þ¥¦¥ó¥È
40 .\"WORD: pointer ¥Ý¥¤¥ó¥¿¡¼
41 .\"WORD: descriptor ¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼
42 .\"WORD: open ¥ª¡¼¥×¥ó
43 .\"WORD: symbolic link ¥·¥ó¥Ü¥ê¥Ã¥¯¡¦¥ê¥ó¥¯
44 .\"WORD: open ¥ª¡¼¥×¥ó
46 .TH STATFS 2 2004-06-23 "Linux" "Linux Programmer's Manual"
48 statfs, fstatfs \- ¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤ÎÅý·×¤òÆÀ¤ë
50 .BR "#include <sys/vfs.h> " "/* ¤Þ¤¿¤Ï <sys/statfs.h> */"
52 .BI "int statfs(const char *" path ", struct statfs *" buf );
54 .BI "int fstatfs(int " fd ", struct statfs *" buf );
58 ¤Ï¥Þ¥¦¥ó¥È¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤Ë¤Ä¤¤¤Æ¤Î¾ðÊó¤òÊÖ¤¹¡£
60 ¤Ï¥Þ¥¦¥ó¥È¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤Ë¤¢¤ë¥Õ¥¡¥¤¥ë¤Î¥Ñ¥¹Ì¾¤Ç¤¢¤ë¡£
64 ¹½Â¤ÂΤؤΥݥ¤¥ó¥¿¡¼¤Ç¡¢¤ª¤è¤½°Ê²¼¤Î¤è¤¦¤ËÄêµÁ¤µ¤ì¤ë:
69 long f_type; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î·¿ (²¼µ»²¾È) */
70 long f_bsize; /* ºÇŬ¤Ê¥Ö¥í¥Ã¥¯¥µ¥¤¥º */
71 long f_blocks; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ÎÁí¥Ç¡¼¥¿¥Ö¥í¥Ã¥¯¿ô */
72 long f_bfree; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¶õ¤¥Ö¥í¥Ã¥¯¿ô */
73 long f_bavail; /* ÈóÆø¢¥æ¡¼¥¶¤¬»ÈÍѲÄǽ¤Ê¶õ¤¥Ö¥í¥Ã¥¯¿ô */
74 long f_files; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ÎÁí¥Õ¥¡¥¤¥ë¥Î¡¼¥É¿ô */
75 long f_ffree; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¶õ¤¥Õ¥¡¥¤¥ë¥Î¡¼¥É¿ô */
76 fsid_t f_fsid; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î ID */
77 long f_namelen; /* ¥Õ¥¡¥¤¥ë̾¤ÎºÇÂçĹ */
80 ¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤Î·¿:
82 ADFS_SUPER_MAGIC 0xadf5
83 AFFS_SUPER_MAGIC 0xADFF
84 BEFS_SUPER_MAGIC 0x42465331
86 CIFS_MAGIC_NUMBER 0xFF534D42
87 CODA_SUPER_MAGIC 0x73757245
88 COH_SUPER_MAGIC 0x012FF7B7
89 CRAMFS_MAGIC 0x28cd3d45
90 DEVFS_SUPER_MAGIC 0x1373
91 EFS_SUPER_MAGIC 0x00414A53
92 EXT_SUPER_MAGIC 0x137D
93 EXT2_OLD_SUPER_MAGIC 0xEF51
94 EXT2_SUPER_MAGIC 0xEF53
95 EXT3_SUPER_MAGIC 0xEF53
96 HFS_SUPER_MAGIC 0x4244
97 HPFS_SUPER_MAGIC 0xF995E849
98 HUGETLBFS_MAGIC 0x958458f6
99 ISOFS_SUPER_MAGIC 0x9660
100 JFFS2_SUPER_MAGIC 0x72b6
101 JFS_SUPER_MAGIC 0x3153464a
102 MINIX_SUPER_MAGIC 0x137F /* ¥ª¥ê¥¸¥Ê¥ë¤Î minix */
103 MINIX_SUPER_MAGIC2 0x138F /* 30 ʸ»ú¥Õ¥¡¥¤¥ë̾¤Î minix */
104 MINIX2_SUPER_MAGIC 0x2468 /* minix V2 */
105 MINIX2_SUPER_MAGIC2 0x2478 /* minix V2, 30 ʸ»ú¥Õ¥¡¥¤¥ë̾ */
106 MSDOS_SUPER_MAGIC 0x4d44
107 NCP_SUPER_MAGIC 0x564c
108 NFS_SUPER_MAGIC 0x6969
109 NTFS_SB_MAGIC 0x5346544e
110 OPENPROM_SUPER_MAGIC 0x9fa1
111 PROC_SUPER_MAGIC 0x9fa0
112 QNX4_SUPER_MAGIC 0x002f
113 REISERFS_SUPER_MAGIC 0x52654973
115 SMB_SUPER_MAGIC 0x517B
116 SYSV2_SUPER_MAGIC 0x012FF7B6
117 SYSV4_SUPER_MAGIC 0x012FF7B5
118 TMPFS_MAGIC 0x01021994
119 UDF_SUPER_MAGIC 0x15013346
121 USBDEVICE_SUPER_MAGIC 0x9fa2
122 VXFS_SUPER_MAGIC 0xa501FCF5
123 XENIX_SUPER_MAGIC 0x012FF7B4
124 XFS_SUPER_MAGIC 0x58465342
125 _XIAFS_SUPER_MAGIC 0x012FD16D
130 ¤Ë¤É¤ó¤ÊÃͤ¬Æþ¤ë¤Ù¤¤Ê¤Î¤«¤Ïï¤âÃΤé¤Ê¤¤ (⤷¡¢²¼µ¤ò»²¾È)¡£
132 ¤½¤ì¤¾¤ì¤Î¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤Ë¤ª¤¤¤Æ̤ÄêµÁ¤Î¥Õ¥£¡¼¥ë¥É¤Ë¤Ï 0 ¤¬
137 ¤Ë¤è¤Ã¤Æ»²¾È¤µ¤ì¤ë¥ª¡¼¥×¥ó¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¤Ë¤Ä¤¤¤Æ¡¢Æ±¤¸¾ðÊó¤òÊÖ¤¹¡£
139 À®¸ù¤¹¤ì¤Ð 0 ¤¬ÊÖ¤µ¤ì¤ë¡£¥¨¥é¡¼¤Î¾ì¹ç¤Ï \-1 ¤¬ÊÖ¤µ¤ì¡¢
148 ¤Î¥Ç¥£¥ì¥¯¥È¥êÉôʬ¤Ë¸¡º÷µö²Ä¤¬Í¿¤¨¤é¤ì¤Æ¤¤¤Ê¤¤
149 .RB ( path_resolution (7)
156 ¤Ï͸ú¤Ê¥ª¡¼¥×¥ó¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¡¦¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¤Ç¤Ï¤Ê¤¤¡£
162 ¤¬ÉÔÀµ¤Ê¥¢¥É¥ì¥¹¤ò»Ø¤·¤Æ¤¤¤ë¡£
165 ¤³¤Î¸Æ¤Ó½Ð¤·¤¬¥·¥°¥Ê¥ë¤ÇÃæÃǤµ¤ì¤¿¡£
168 ¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤ÎÆɤ߹þ¤ß¤Î´Ö¤Ë I/O ¥¨¥é¡¼¤¬È¯À¸¤·¤¿¡£
174 ¤ò²ò·è¤¹¤ë¤Î¤Ëé¤ë¤Ù¤¥·¥ó¥Ü¥ê¥Ã¥¯¡¦¥ê¥ó¥¯¤¬Â¿¤¹¤®¤ë¡£
186 ¤Ë¤è¤Ã¤Æ»²¾È¤µ¤ì¤ë¥Õ¥¡¥¤¥ë¤¬Â¸ºß¤·¤Ê¤¤¡£
189 ¥«¡¼¥Í¥ë¤Ë½½Ê¬¤Ê¥á¥â¥ê¤¬¤Ê¤¤¡£
192 ¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤¬¤³¤Î¸Æ¤Ó½Ð¤·¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤Ê¤¤¡£
198 ¤Î¥Ç¥£¥ì¥¯¥È¥êÉôʬ¤¬¥Ç¥£¥ì¥¯¥È¥ê¤Ç¤Ê¤¤¡£
201 Ãͤ¬Â礲᤮¤ë¤¿¤á¡¢ÊÖ¤êÃͤι½Â¤ÂΤÇɽ¸½¤Ç¤¤Ê¤¤¡£
206 ¤Ï 4.4BSD ¤Î¤â¤Î¤Ë±Æ¶Á¤ò¼õ¤±¤Æ¤¤¤ë¡£
207 (¤·¤«¤·Æ±¤¸¹½Â¤ÂΤò»ÈÍѤ·¤Æ¤¤¤ë¤ï¤±¤Ç¤Ï¤Ê¤¤)
209 ¤³¤Î¥é¥¤¥Ö¥é¥ê¥³¡¼¥ë¤ò¥µ¥Ý¡¼¥È¤¹¤ë¤¿¤á¡¢
210 ¥«¡¼¥Í¥ë¤Ë¤Ï¥·¥¹¥Æ¥à¥³¡¼¥ë
217 \fI<sys/vfs.h>\fP ¤·¤«»ý¤¿¤Ê¤¤¥·¥¹¥Æ¥à¤â¤¢¤ê¡¢
218 \fI<sys/statfs.h>\fP ¤â»ý¤Ã¤Æ¤¤¤ë¥·¥¹¥Æ¥à¤â¤¢¤ë¡£
219 Á°¼Ô¤Ï¸å¼Ô¤ò¥¤¥ó¥¯¥ë¡¼¥É¤¹¤ë¤Î¤Ç¡¢
220 Á°¼Ô¤ò¥¤¥ó¥¯¥ë¡¼¥É¤¹¤ë¤Î¤¬Îɤ¤¤È¹Í¤¨¤é¤ì¤ë¡£
222 LSB ¤Ç¤Ï¥é¥¤¥Ö¥é¥ê¥³¡¼¥ë
225 ¤òÈó¿ä¾©¤È¤·¤Æ¡¢Âå¤ï¤ê¤Ë
228 ¤ò»È¤¦¤è¤¦¤Ë»Ø¼¨¤·¤Æ¤¤¤ë¡£
229 .SS f_fsid ¥Õ¥£¡¼¥ë¥É
230 Solaris, Irix, POSIX ¤Ë¤Ï¥·¥¹¥Æ¥à¥³¡¼¥ë
235 .RI ( <sys/statvfs.h>
241 Linux, SunOS, HP-UX, 4.4BSD ¤Ë¤Ï¥·¥¹¥Æ¥à¥³¡¼¥ë
254 .I "struct { int val[2]; }"
256 FreeBSD ¤Ç¤âƱ¤¸¤Ç¤¢¤ë¤¬¡¢¥¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë
261 ¤Ï¤¢¤ë¥é¥ó¥À¥à¤ÊÃͤò»ý¤Á¡¢
263 ¤È¤¤¤¦ 1 ÁȤÎÃͤǥե¡¥¤¥ë¤ò°ì°Õ¤Ë·èÄê¤Ç¤¤ë¤è¤¦¤Ë¤¹¤ë¡¢
264 ¤È¤¤¤¦¤Î¤¬´ðËÜŪ¤Ê¹Í¤¨Êý¤Ç¤¢¤ë¡£
265 ¤¤¤¯¤Ä¤«¤Î OS ¤Ç¤Ï¡¢¥Ç¥Ð¥¤¥¹ÈÖ¹æ (¤ÎÊѼï) ¤ò»È¤Ã¤¿¤ê¡¢
266 ¥Ç¥Ð¥¤¥¹ÈÖ¹æ¤È¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¥¿¥¤¥×¤òÁȤ߹ç¤ï¤»¤Æ»È¤Ã¤¿¤ê¤·¤Æ¤¤¤ë¡£
269 ¥Õ¥£¡¼¥ë¥É¤Î¼èÆÀ¤ò¥¹¡¼¥Ñ¡¼¥æ¡¼¥¶¤Ë¸ÂÄꤷ¤Æ¤¤¤ë¤â¤Î¤â¤¢¤ë
270 (ÈóÆø¢¥æ¡¼¥¶¤¬¼èÆÀ¤¹¤ë¤È 0 ¤È¤Ê¤ë)¡£
271 NFS ¤Ç¥¨¥¯¥¹¥Ý¡¼¥È¤µ¤ì¤ë¾ì¹ç¡¢
272 ¤³¤Î¥Õ¥£¡¼¥ë¥É¤¬¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤Î¥Õ¥¡¥¤¥ë¥Ï¥ó¥É¥ë¤Ç»È¤ï¤ì¤Æ¤ª¤ê¡¢
273 ¤³¤ÎÃͤòÄ󶡤¹¤ë¤È¥»¥¥å¥ê¥Æ¥£¾å¤ÎÌäÂ꤬¤¢¤ë¡£
279 ¥·¥¹¥Æ¥à¥³¡¼¥ë¤ÎÂè 2 °ú¤¿ô¤È¤·¤Æ»ÈÍѤǤ¤ë¡£
283 .BR path_resolution (7)