989d921f5d
I'm very pleased to announce the release of our new website and documentation using the new toolchain with Hugo and AsciiDoctor. To get more information about the new toolchain please read the FreeBSD Documentation Project Primer[1], Hugo docs[2] and AsciiDoctor docs[3]. Acknowledgment: Benedict Reuschling <bcr@> Glen Barber <gjb@> Hiroki Sato <hrs@> Li-Wen Hsu <lwhsu@> Sean Chittenden <seanc@> The FreeBSD Foundation [1] https://docs.FreeBSD.org/en/books/fdp-primer/ [2] https://gohugo.io/documentation/ [3] https://docs.asciidoctor.org/home/ Approved by: doceng, core
379 lines
15 KiB
Groff
379 lines
15 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
|
||
.\" The Regents of the University of California. All rights reserved.
|
||
.\"
|
||
.\" Redistribution and use in source and binary forms, with or without
|
||
.\" modification, are permitted provided that the following conditions
|
||
.\" are met:
|
||
.\" 1. Redistributions of source code must retain the above copyright
|
||
.\" notice, this list of conditions and the following disclaimer.
|
||
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||
.\" notice, this list of conditions and the following disclaimer in the
|
||
.\" documentation and/or other materials provided with the distribution.
|
||
.\" 3. All advertising materials mentioning features or use of this software
|
||
.\" must display the following acknowledgement:
|
||
.\" This product includes software developed by the University of
|
||
.\" California, Berkeley and its contributors.
|
||
.\" 4. Neither the name of the University nor the names of its contributors
|
||
.\" may be used to endorse or promote products derived from this software
|
||
.\" without specific prior written permission.
|
||
.\"
|
||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
.\" SUCH DAMAGE.
|
||
.\"
|
||
.\" @(#)fs.5 8.2 (Berkeley) 4/19/94
|
||
.\" %FreeBSD: src/share/man/man5/fs.5,v 1.21 2004/07/03 18:29:22 ru Exp %
|
||
.\"
|
||
.\" $FreeBSD$
|
||
.\"
|
||
.Dd April 19, 1994
|
||
.Dt FS 5
|
||
.Os
|
||
.Sh ̾¾Î
|
||
.Nm fs ,
|
||
.Nm inode
|
||
.Nd ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥Ü¥ê¥å¡¼¥à¤Î¥Õ¥©¡¼¥Þ¥Ã¥È
|
||
.Sh ½ñ¼°
|
||
.In sys/param.h
|
||
.In ufs/ffs/fs.h
|
||
.Pp
|
||
.In sys/types.h
|
||
.In sys/lock.h
|
||
.In ufs/ufs/quota.h
|
||
.In ufs/ufs/inode.h
|
||
.Sh ²òÀâ
|
||
¥Õ¥¡¥¤¥ë
|
||
.In fs.h
|
||
¤È
|
||
.In inode.h
|
||
¤Ï¡¢¥é¥ó¥À¥à¥¢¥¯¥»¥¹¥Ç¥Ð¥¤¥¹ (¥Ç¥£¥¹¥¯) ¾å¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥ª¥Ö¥¸¥§¥¯¥È
|
||
¤Î´ðËÜ¥Õ¥©¡¼¥Þ¥Ã¥È¤òºîÀ®¡¢´ÉÍý¤¹¤ëºÝ¤Ë»È¤ï¤ì¤ë¤¤¤¯¤Ä¤«¤Î¹½Â¤ÂΡ¢
|
||
ÄêµÁºÑ¤ßÊÑ¿ô¡¢¥Þ¥¯¥í¤òÀë¸À¤·¤Þ¤¹¡£
|
||
.Pp
|
||
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤È¥Ö¥í¥Ã¥¯¿ô¤«¤é¹½À®¤µ¤ì¤Æ¤ª¤ê¡¢
|
||
¤³¤ì¤é¤Ï¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Ñ¥é¥á¡¼¥¿¤Ë¤Ê¤ê¤Þ¤¹¡£
|
||
.Dv BBLOCK
|
||
¤«¤é»Ï¤Þ¤ê
|
||
Â礤µ
|
||
.Dv BBSIZE
|
||
¤À¤±Â³¤¯¥»¥¯¥¿¤Ï¡¢
|
||
¥Ç¥£¥¹¥¯¥é¥Ù¥ë¤È¤¤¤¯¤Ä¤«¤Î°ì¼¡¡¢Æ󼡥ϡ¼¥É¥¦¥§¥¢¥Ö¡¼¥È¥¹¥È¥é¥Ã¥×¥×¥í¥°¥é¥à
|
||
¤Î¤¿¤á¤Ë»È¤ï¤ì¤Þ¤¹¡£
|
||
.Pp
|
||
¼ÂºÝ¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï¡¢
|
||
.Dv SBLOCK
|
||
¥»¥¯¥¿¤«¤é»Ï¤Þ¤ê¡¢¤½¤³¤Ë¤Ï
|
||
Â礤µ¤¬
|
||
.Dv SBLOCKSIZE
|
||
¤Ç¤¢¤ë
|
||
.Em ¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯
|
||
¤¬¤¢¤ê¤Þ¤¹¡£
|
||
¥Õ¥¡¥¤¥ë
|
||
.In ufs/ffs/fs.h
|
||
¤Ë¤¢¤ë°Ê²¼¤Î¹½Â¤ÂΤϡ¢¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤òµ½Ò¤·¤Æ¤¤¤Þ¤¹¡£
|
||
.Bd -literal
|
||
/*
|
||
* FFS ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯
|
||
*/
|
||
struct fs {
|
||
int32_t fs_firstfield; /* ÆâÉô¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯ÍѤ˻Ȥï¤ì¤ë¡¢Îò»ËŪ */
|
||
int32_t fs_unused_1; /* FS ¥ê¥ó¥¯¥ê¥¹¥È */
|
||
int32_t fs_sblkno; /* fs Æ⥹¡¼¥Ñ¥Ö¥í¥Ã¥¯¥ª¥Õ¥»¥Ã¥È */
|
||
int32_t fs_cblkno; /* fs Æ⥷¥ê¥ó¥À¥Ö¥í¥Ã¥¯¥ª¥Õ¥»¥Ã¥È */
|
||
int32_t fs_iblkno; /* fs Æâ inode ¥Ö¥í¥Ã¥¯¥ª¥Õ¥»¥Ã¥È */
|
||
int32_t fs_dblkno; /* cg ¸å¤ÎºÇ½é¤Î¥Ç¡¼¥¿¤Î¥ª¥Õ¥»¥Ã¥È */
|
||
int32_t fs_old_cgoffset; /* ¥·¥ê¥ó¥ÀÆâ¤Î¥·¥ê¥ó¥À¥°¥ë¡¼¥×¥ª¥Õ¥»¥Ã¥È */
|
||
int32_t fs_old_cgmask; /* mod fs_ntrak ¤Î·×»»¤Ë»È¤ï¤ì¤ë */
|
||
int32_t fs_old_time; /* ºÇ¸å¤Ë½ñ¤¹þ¤Þ¤ì¤¿»þ¹ï */
|
||
int32_t fs_old_size; /* fs Æâ¤Î¥Ö¥í¥Ã¥¯¿ô */
|
||
int32_t fs_old_dsize; /* fs Æâ¤Î¥Ç¡¼¥¿¥Ö¥í¥Ã¥¯¿ô */
|
||
int32_t fs_ncg; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤Î¿ô */
|
||
int32_t fs_bsize; /* fs Æâ¤Î´ðËÜ¥Ö¥í¥Ã¥¯¥µ¥¤¥º */
|
||
int32_t fs_fsize; /* fs Æâ¤Î¥Õ¥é¥°¥á¥ó¥È¥Ö¥í¥Ã¥¯¥µ¥¤¥º */
|
||
int32_t fs_frag; /* fs ¤Î 1 ¥Ö¥í¥Ã¥¯Ãæ¤Î¥Õ¥é¥°¥á¥ó¥È¿ô */
|
||
/* °Ê²¼¤Ï¥³¥ó¥Õ¥£¥®¥å¥ì¡¼¥·¥ç¥ó¥Ñ¥é¥á¡¼¥¿ */
|
||
int32_t fs_minfree; /* ¥Õ¥ê¡¼¥Ö¥í¥Ã¥¯¤ÎºÇ¾®¥Ñ¡¼¥»¥ó¥Æ¡¼¥¸ */
|
||
int32_t fs_old_rotdelay; /* ºÇŬ¤Ê¼¡¥Ö¥í¥Ã¥¯¤Î¤¿¤á¤Î ms ¿ô */
|
||
int32_t fs_old_rps; /* 1 É䢤¿¤ê¤Î¥Ç¥£¥¹¥¯²óž */
|
||
/* ¤³¤ì¤é¤Î¥Õ¥£¡¼¥ë¥É¤Ï¾¤Î¥Õ¥£¡¼¥ë¥É¤«¤é·×»»¤Ç¤¤ë */
|
||
int32_t fs_bmask; /* ``blkoff'' ¥Ö¥í¥Ã¥¯¥ª¥Õ¥»¥Ã¥È¤Î·×»» */
|
||
int32_t fs_fmask; /* ``fragoff'' ¥Õ¥é¥°¥á¥ó¥È¥ª¥Õ¥»¥Ã¥È¤Î·×»» */
|
||
int32_t fs_bshift; /* ``lblkno'' ÏÀÍý¥Ö¥í¥Ã¥¯ÈÖ¹æ¤Î·×»» */
|
||
int32_t fs_fshift; /* ``numfrags'' ¥Õ¥é¥°¥á¥ó¥È¿ô¤Î·×»» */
|
||
/* °Ê²¼¤Ï¥³¥ó¥Õ¥£¥®¥å¥ì¡¼¥·¥ç¥ó¥Ñ¥é¥á¡¼¥¿ */
|
||
int32_t fs_maxcontig; /* Ϣ³¤·¤¿¥Ö¥í¥Ã¥¯¤ÎºÇÂç¿ô */
|
||
int32_t fs_maxbpg; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤¢¤¿¤ê¤ÎºÇÂç¥Ö¥í¥Ã¥¯¿ô */
|
||
/* ¤³¤ì¤é¤Î¥Õ¥£¡¼¥ë¥É¤Ï¾¤Î¥Õ¥£¡¼¥ë¥É¤«¤é·×»»¤Ç¤¤ë */
|
||
int32_t fs_fragshift; /* ¥Õ¥é¥°¥á¥ó¥È¥·¥Õ¥È¤¹¤ë¥Ö¥í¥Ã¥¯ */
|
||
int32_t fs_fsbtodb; /* fsbtodb ¤È dbtofsb ¥·¥Õ¥ÈÄê¿ô */
|
||
int32_t fs_sbsize; /* ¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤Î¼ÂºÝ¤ÎÂ礤µ */
|
||
int32_t fs_spare1[2]; /* ¸Å¤¤ fs_csmask */
|
||
/* ¸Å¤¤ fs_csshift */
|
||
int32_t fs_nindir; /* NINDIR ¤ÎÃÍ */
|
||
int32_t fs_inopb; /* INOPB ¤ÎÃÍ */
|
||
int32_t fs_old_nspf; /* NSPF ¤ÎÃÍ*/
|
||
/* Ê̤Υ³¥ó¥Õ¥£¥®¥å¥ì¡¼¥·¥ç¥ó¥Ñ¥é¥á¡¼¥¿ */
|
||
int32_t fs_optim; /* ºÇŬ²½¤ÎÁªÂò¡¢°Ê²¼¤ò»²¾È */
|
||
int32_t fs_old_npsect; /* ͽÈ÷¤ò´Þ¤à¡¢¥È¥é¥Ã¥¯¤¢¤¿¤ê¥»¥¯¥¿¿ô */
|
||
int32_t fs_old_interleave; /* ¥Ï¡¼¥É¥¦¥§¥¢¥»¥¯¥¿¥¤¥ó¥¿¥ê¡¼¥Ö */
|
||
int32_t fs_old_trackskew; /* ¥È¥é¥Ã¥¯¤¢¤¿¤ê¤Î¥»¥¯¥¿ 0 ¥¹¥¥å¡¼ */
|
||
int32_t fs_id[2]; /* ¥æ¥Ë¡¼¥¯¤Ê¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à ID */
|
||
/* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤Î¿ô¤È¥µ¥¤¥º¤Ë¤è¤ê·è¤á¤é¤ì¤ë¥µ¥¤¥º */
|
||
int32_t fs_old_csaddr; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×Áí³çÎΰè¤Î¥Ö¥í¥Ã¥¯¥¢¥É¥ì¥¹ */
|
||
int32_t fs_cssize; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×Áí³çÎΰè¤Î¥µ¥¤¥º */
|
||
int32_t fs_cgsize; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¥µ¥¤¥º */
|
||
int32_t fs_spare2; /* ¸Å¤¤ fs_ntrak */
|
||
int32_t fs_old_nsect; /* ¥È¥é¥Ã¥¯¤¢¤¿¤ê¤Î¥»¥¯¥¿¿ô */
|
||
int32_t fs_old_spc; /* ¥·¥ê¥ó¥À¤¢¤¿¤ê¤Î¥»¥¯¥¿¿ô */
|
||
int32_t fs_old_ncyl; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥·¥ê¥ó¥À¿ô */
|
||
int32_t fs_old_cpg; /* ¥°¥ë¡¼¥×¤¢¤¿¤ê¤Î¥·¥ê¥ó¥À¿ô */
|
||
int32_t fs_ipg; /* ¥°¥ë¡¼¥×¤¢¤¿¤ê¤Î inode ¿ô */
|
||
int32_t fs_fpg; /* ¥°¥ë¡¼¥×¤¢¤¿¤ê¤Î¥Ö¥í¥Ã¥¯¿ô * fs_frag */
|
||
/* ¤³¤Î¥Ç¡¼¥¿¤Ï¥¯¥é¥Ã¥·¥å¸å¤ËºÆ·×»»¤µ¤ì¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤ */
|
||
struct csum fs_old_cstotal; /* ¥·¥ê¥ó¥ÀÁí³ç¾ðÊó */
|
||
/* °Ê²¼¤Î¥Õ¥£¡¼¥ë¥É¤Ï¥Þ¥¦¥ó¥È»þ¤Ë¥¯¥ê¥¢¤µ¤ì¤ë */
|
||
int8_t fs_fmod; /* ¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯Êѹ¹¥Õ¥é¥° */
|
||
int8_t fs_clean; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬¥¯¥ê¡¼¥ó¤Ç¤¢¤ë¥Õ¥é¥° */
|
||
int8_t fs_ronly; /* Æɤ߹þ¤ßÀìÍѤǥޥ¦¥ó¥È¤µ¤ì¤¿¥Õ¥é¥° */
|
||
int8_t fs_old_flags; /* ¸Å¤¤ FS_ ¥Õ¥é¥° */
|
||
u_char fs_fsmnt[MAXMNTLEN]; /* ¥Þ¥¦¥ó¥È¾ì½ê¤Î̾Á° */
|
||
u_char fs_volname[MAXVOLLEN]; /* ¥Ü¥ê¥å¡¼¥à̾ */
|
||
u_int64_t fs_swuid; /* ¥·¥¹¥Æ¥à¥ï¥¤¥É¤Î UID */
|
||
int32_t fs_pad; /* fs_swuid ¤Î¥¢¥é¥¤¥ó¥á¥ó¥ÈÍÑ */
|
||
/* ¤³¤ì¤é¤Î¥Õ¥£¡¼¥ë¥É¤Ï¸½ºß¤Î¥Ö¥í¥Ã¥¯¤ÎÇÛÃÖ¾ðÊó¤òÊÝ»ý¤¹¤ë */
|
||
int32_t fs_cgrotor; /* ºÇ¸å¤Ë¸¡º÷¤µ¤ì¤¿ cg */
|
||
void *fs_ocsp[NOCSPTRS]; /* ¥Ñ¥Ã¥É¡£fs_cs ¥Ð¥Ã¥Õ¥¡¤Î¥ê¥¹¥È¤À¤Ã¤¿ */
|
||
u_int8_t *fs_contigdirs; /* Ϣ³³ä¤êÅö¤Æ¤µ¤ì¤¿ dir ¿ô */
|
||
struct csum *fs_csp; /* fs_cs ¾ðÊó¥Ð¥Ã¥Õ¥¡¤Î¥ê¥¹¥È */
|
||
int32_t *fs_maxcluster; /* ³Æ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤ÎºÇÂ祯¥é¥¹¥¿ */
|
||
u_int *fs_active; /* fs ¥È¥é¥Ã¥¯ÍѤˡ¢¥¹¥Ê¥Ã¥×¥·¥ç¥Ã¥È¤¬»ÈÍÑ */
|
||
int32_t fs_old_cpc; /* postbl Æâ¤Î¥µ¥¤¥¯¥ë¤¢¤¿¤ê¤Î¥·¥ê¥ó¥À */
|
||
int32_t fs_maxbsize; /* ºÇÂç¤Î¥Ö¥í¥Ã¥¯²½·¸¿ô */
|
||
int64_t fs_sparecon64[17]; /* ¸Å¤¤¥í¡¼¥Æ¡¼¥·¥ç¥ó¥Ö¥í¥Ã¥¯¥ê¥¹¥È¥Ø¥Ã¥É */
|
||
int64_t fs_sblockloc; /* ɸ½à¤Î¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤Î¥Ð¥¤¥È¥ª¥Õ¥»¥Ã¥È */
|
||
struct csum_total fs_cstotal; /* ¥·¥ê¥ó¥ÀÁí³ç¾ðÊó */
|
||
ufs_time_t fs_time; /* ºÇ¸å¤Ë½ñ¤¹þ¤Þ¤ì¤¿»þ¹ï */
|
||
int64_t fs_size; /* fs Ãæ¤Î¥Ö¥í¥Ã¥¯¿ô */
|
||
int64_t fs_dsize; /* fs Ãæ¤Î¥Ç¡¼¥¿¥Ö¥í¥Ã¥¯¿ô */
|
||
ufs2_daddr_t fs_csaddr; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×Áí³ç¾ðÊóÎΰè¤Î¥Ö¥í¥Ã¥¯¥¢¥É¥ì¥¹ */
|
||
int64_t fs_pendingblocks; /* ¸½ºß³«ÊüÅÓÃæ¤Î¥Ö¥í¥Ã¥¯¿ô */
|
||
int32_t fs_pendinginodes; /* ¸½ºß³«ÊüÅÓÃæ¤Î inode ¿ô */
|
||
int32_t fs_snapinum[FSMAXSNAP]; /* ¥¹¥Ê¥Ã¥×¥·¥ç¥Ã¥È inode ¿ô¤Î¥ê¥¹¥È */
|
||
int32_t fs_avgfilesize; /* ¥Õ¥¡¥¤¥ë¥µ¥¤¥º¤ÎÊ¿¶Ñ¤Î´üÂÔÃÍ */
|
||
int32_t fs_avgfpdir; /* ¥Ç¥£¥ì¥¯¥È¥ê¤¢¤¿¤ê¤Î¥Õ¥¡¥¤¥ë¿ô¤Î´üÂÔÃÍ */
|
||
int32_t fs_save_cgsize; /* ¼Â cg ¥µ¥¤¥º¤òÊݸ¤·¡¢fs_bsize ¤ò»ÈÍÑ */
|
||
int32_t fs_sparecon32[26]; /* ¾Íè¤ÎÄê¿ô¤Î¤¿¤á¤ÎͽÌó */
|
||
int32_t fs_flags; /* ¸å½Ò¤Î FS_ ¥Õ¥é¥°»²¾È */
|
||
int32_t fs_contigsumsize; /* ¥¯¥é¥¹¥¿Áí³çÇÛÎó¤ÎÂ礤µ */
|
||
int32_t fs_maxsymlinklen; /* ÆâÉô¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤ÎºÇÂçĹ */
|
||
int32_t fs_old_inodefmt; /* ¥Ç¥£¥¹¥¯¾å¤Î inode ¤Î¥Õ¥©¡¼¥Þ¥Ã¥È */
|
||
u_int64_t fs_maxfilesize; /* ºÇÂçɽ¼¨²Äǽ¥Õ¥¡¥¤¥ë¥µ¥¤¥º */
|
||
int64_t fs_qbmask; /* ~fs_bmask - 64 ¥Ó¥Ã¥È¥µ¥¤¥º¤Ç»È¤¦ */
|
||
int64_t fs_qfmask; /* ~fs_fmask - 64 ¥Ó¥Ã¥È¥µ¥¤¥º¤Ç»È¤¦ */
|
||
int32_t fs_state; /* fs_clean ¥Õ¥£¡¼¥ë¥É¤¬Í¸ú¤Ç¤¢¤ë¤³¤È¤ò¼¨¤¹ */
|
||
int32_t fs_old_postblformat; /* °ÌÃ֥쥤¥¢¥¦¥È¥Æ¡¼¥Ö¥ë¤Î¥Õ¥©¡¼¥Þ¥Ã¥È */
|
||
int32_t fs_old_nrpos; /* ²óž°ÌÃ֤οô */
|
||
int32_t fs_spare5[2]; /* ¸Å¤¤ fs_postbloff */
|
||
/* ¸Å¤¤ fs_rotbloff */
|
||
int32_t fs_magic; /* ¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð */
|
||
};
|
||
|
||
/*
|
||
* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¼±ÊÌ
|
||
*/
|
||
#define FS_UFS1_MAGIC 0x011954 /* UFS1 ¥Õ¥¡¥¹¥È¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð */
|
||
#define FS_UFS2_MAGIC 0x19540119 /* UFS2 ¥Õ¥¡¥¹¥È¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð */
|
||
#define FS_OKAY 0x7c269d38 /* ¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¥Á¥§¥Ã¥¯¥µ¥à */
|
||
#define FS_42INODEFMT -1 /* 4.2BSD inode ¥Õ¥©¡¼¥Þ¥Ã¥È */
|
||
#define FS_44INODEFMT 2 /* 4.4BSD inode ¥Õ¥©¡¼¥Þ¥Ã¥È */
|
||
|
||
/*
|
||
* ºÇŬ²½¤Î¤¿¤á¤ÎÁªÂò
|
||
*/
|
||
#define FS_OPTTIME 0 /* ºÇ¾®¥¢¥í¥±¡¼¥·¥ç¥ó»þ´Ö */
|
||
#define FS_OPTSPACE 1 /* ºÇ¾®¥Ç¥£¥¹¥¯¥Õ¥é¥°¥á¥ó¥Æ¡¼¥·¥ç¥ó */
|
||
.Ed
|
||
.Pp
|
||
³Æ¥Ç¥£¥¹¥¯¥É¥é¥¤¥Ö¤Ï¤¤¤¯¤Ä¤«¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ò´Þ¤ó¤Ç¤¤¤Þ¤¹¡£
|
||
1 ¤Ä¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï¡¢¤¤¤¯¤Ä¤«¤Î¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤«¤éÀ®¤ê¤Þ¤¹¡£
|
||
³Æ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤Ë¤Ï inode ¤È¥Ç¡¼¥¿¤¬¤¢¤ê¤Þ¤¹¡£
|
||
.Pp
|
||
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï¡¢¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤ò½çÈ֤˵½Ò¤¹¤ë¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤Ë
|
||
¤è¤Ã¤Æµ½Ò¤µ¤ì¤Æ¤¤¤Þ¤¹¡£
|
||
¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤Ï½ÅÍפʥǡ¼¥¿¤Ç¤¢¤ê¡¢²õÌÇŪ¤Ê»¼º¤«¤é¼é¤ë¤¿¤á¤Ë
|
||
³Æ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤ËÊ£À½¤µ¤ì¤Æ¤¤¤Þ¤¹¡£
|
||
¤³¤ì¤Ï¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥àºîÀ®»þ¤Ë¹Ô¤Ê¤ï¤ì¡¢½ÅÍפʥ¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¥Ç¡¼¥¿¤Ï
|
||
Êѹ¹¤µ¤ì¤Ê¤¤¤Î¤Ç¡¢Æä˻´»ö¤¬¤Õ¤ê¤«¤«¤é¤Ê¤±¤ì¤Ð¡¢Ê£À½¤¬»²¾È¤µ¤ì¤ë
|
||
ɬÍפϤ¢¤ê¤Þ¤»¤ó¡£
|
||
.Pp
|
||
inode ¤ËÊݸ¤µ¤ì¤¿¥¢¥É¥ì¥¹¤Ë¤è¤Ã¤Æ¡¢`¥Ö¥í¥Ã¥¯' ¤Î¥Õ¥é¥°¥á¥ó¥È¤Î
|
||
°ÌÃÖ¤ò·è¤á¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹¡£
|
||
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥Ö¥í¥Ã¥¯¤Î¤Û¤È¤ó¤É¤Ï
|
||
.Dv MAXBSIZE
|
||
¤Ç¤¹¤¬¡¢2, 4, 8 ¸Ä¤Ëʬ¤±¤ë¤³¤È¤¬¼«Í³¤Ë¤Ç¤¡¢
|
||
¤½¤ì¤¾¤ì¤ò°ÌÃÖ»ØÄê¤Ç¤¤Þ¤¹¡£
|
||
¤³¤ì¤é¤ÎÃÇÊÒ¤Ï
|
||
.Dv DEV_BSIZE
|
||
¤Þ¤¿¤Ï
|
||
.Dv DEV_BSIZE
|
||
ñ°Ì¤ÎÇÜ¿ô¤Ç¤¢¤ì¤ÐÎɤ¤¤Î¤Ç¤¹¡£
|
||
.Pp
|
||
Â礤ʥե¡¥¤¥ë¤Ï¡¢Èó¾ï¤ËÂ礤ʥǡ¼¥¿¥Ö¥í¥Ã¥¯¤«¤é¤Ê¤ê¤Þ¤¹¡£
|
||
¥Ç¥£¥¹¥¯¥¹¥Ú¡¼¥¹¤Î²áÅÙ¤ÎϲÈñ¤òÈò¤±¤ë¤¿¤á¤Ë¡¢¾®¤µ¤Ê¥Õ¥¡¥¤¥ë¤Î
|
||
ºÇ¸å¤Î¥Ç¡¼¥¿¥Ö¥í¥Ã¥¯¤Ï¡¢
|
||
Â礤ʥ֥í¥Ã¥¯¤Î¥Õ¥é¥°¥á¥ó¥È¤¬É¬Íפʿô¤À¤±ÇÛÃÖ¤µ¤ì¤Þ¤¹¡£
|
||
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥Õ¥©¡¼¥Þ¥Ã¥È¤Ï¡¢¤½¤Î¤è¤¦¤Ê¥Õ¥é¥°¥á¥ó¥È (Â礤ʥ֥í¥Ã¥¯¤ò
|
||
ʬ³ä¤·¤¿°ìÊÒ) ¤Î 1 ¤Ä¤Ø¤Î¥Ý¥¤¥ó¥¿¤À¤±¤òÊÝ»ý¤·¤Þ¤¹¡£
|
||
¤½¤Î¤è¤¦¤Ê¥Õ¥é¥°¥á¥ó¥È¤ÎÂ礤µ¤Ï¡¢
|
||
inode ¤Ë¤¢¤ë¾ðÊ󤫤é·èÄꤹ¤ë¤³¤È¤¬¤Ç¤¡¢
|
||
.Fn blksize fs ip lbn
|
||
¥Þ¥¯¥í¤¬»È¤Ã¤Æ¤¤¤Þ¤¹¡£
|
||
.Pp
|
||
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï¡¢Ä󶡲Äǽ¤Ê¶õ¤¤ò¥Õ¥é¥°¥á¥ó¥È¥ì¥Ù¥ë¤ÇµÏ¿¤·¤Þ¤¹¡£
|
||
¤Ä¤Þ¤ê¡¢¥Ö¥í¥Ã¥¯¤Î¶õ¤¤ò·èÄꤹ¤ë¤¿¤á¤Ë¡¢¥Õ¥é¥°¥á¥ó¥È¤òʤ٤ÆÄ´¤Ù¤Þ¤¹¡£
|
||
.Pp
|
||
root inode ¤Ï¡¢¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¤ª¤ª¤â¤È¤Ç¤¹¡£
|
||
inode 0 ¤Ï¡¢Ä̾ï¤ÎÌÜŪ¤Ç¤Ï»È¤ï¤ì¤º¡¢Îò»ËŪ¤Ë
|
||
¥Ð¥Ã¥É¥Ö¥í¥Ã¥¯¤Ï inode 1 ¤Ë¥ê¥ó¥¯¤µ¤ì¤Þ¤¹¡£
|
||
¤·¤¿¤¬¤Ã¤Æ root inode ¤Ï¡¢2 ¤Ç¤¹
|
||
(inode 1 ¤Ï¡¢¤â¤Ï¤ä¤³¤ÎÌÜŪ¤Ç¤Ï»È¤ï¤ì¤Þ¤»¤ó¤¬¡¢
|
||
¿¤¯¤Î¥À¥ó¥×¥Æ¡¼¥×¤¬¤³¤Î²¾Äê¤ò¤·¤Æ¤¤¤ë¤Î¤Ç¡¢¤½¤ì¤Ë¤Ä¤¤¤Æ¤ÏÊѹ¹¤Ç¤¤Þ¤»¤ó)¡£
|
||
.Pp
|
||
.Fa fs_minfree
|
||
Í×ÁǤϡ¢¶õ¤¤¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥Ö¥í¥Ã¥¯¤ÎºÇÄãµöÍƳä¹ç¤òÍ¿¤¨¤Þ¤¹¡£
|
||
¶õ¤¥ê¥¹¥È¤¬¤³¤Î¥ì¥Ù¥ë°Ê²¼¤Ë¤Ê¤Ã¤¿¾ì¹ç¡¢¥¹¡¼¥Ñ¥æ¡¼¥¶
|
||
¤À¤±¤¬¥Ö¥í¥Ã¥¯¤Î³ÎÊݤò³¤±¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹¡£
|
||
.Fa fs_minfree
|
||
Í×ÁǤϡ¢¶õ¤¥Ö¥í¥Ã¥¯¤ÎͽÈ÷¤¬É¬Íפʤ¤¤È»×¤ï¤ì¤¿¤é 0 ¤Ë¥»¥Ã¥È¤·¤Æ¤â
|
||
¤«¤Þ¤¤¤Þ¤»¤ó¤¬¡¢¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬ 90% °Ê¾åµÍ¤Þ¤Ã¤¿¾õÂÖ¤ÇÆ°¤¤¤Æ¤¤¤ë¤È¤¤Ë¤Ï¡¢
|
||
¤«¤Ê¤êÀǽ¤¬Äã²¼¤¹¤ë¤Ç¤·¤ç¤¦¡£
|
||
¤½¤Î¤¿¤á¥Ç¥Õ¥©¥ë¥È¤Î
|
||
.Fa fs_minfree
|
||
¤ÎÃÍ¤Ï 10% ¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡£
|
||
.Pp
|
||
·Ð¸³¾å¡¢¥Ö¥í¥Ã¥¯¥Õ¥é¥°¥á¥ó¥Æ¡¼¥·¥ç¥ó¤È 90% »ÈÍÑÃæ¤Î¥Ç¥£¥¹¥¯Á´ÂΤÎÍøÍÑ
|
||
¤Î·ó¤Í¹ç¤¤¤¬ºÇ¤âÎɤ¤¤Î¤Ï¡¢¥Õ¥é¥°¥á¥ó¥Æ¡¼¥·¥ç¥ó 8 ¤Î¤È¤¤Ç¤¹¡£
|
||
¤½¤Î¤¿¤á¥Ç¥Õ¥©¥ë¥È¤Î¥Õ¥é¥°¥á¥ó¥È¥µ¥¤¥º¤Ï¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤Î 8 ÇܤˤʤäƤ¤¤Þ¤¹¡£
|
||
.Pp
|
||
Í×ÁÇ
|
||
.Fa fs_optim
|
||
¤Ï¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬¥Ö¥í¥Ã¥¯¤ò³ÎÊݤ¹¤ë¤Î¤ËÍפ¹¤ë»þ´Ö¤òºÇ¾®¤Ë
|
||
¤·¤è¤¦¤È¤¹¤ë¤«¡¢¤½¤ì¤È¤â¥Ç¥£¥¹¥¯¾å¤ÎÎΰè¤Î¥Õ¥é¥°¥á¥ó¥Æ¡¼¥·¥ç¥ó¤òºÇ¾®¤Ë
|
||
¤·¤è¤¦¤È¤¹¤ë¤«¤ò»ØÄꤷ¤Þ¤¹¡£
|
||
fs_minfree (¾åµ»²¾È) ¤ÎÃͤ¬ 10% ¤è¤ê¾®¤µ¤¤¾ì¹ç¤Ï¡¢¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à
|
||
¤Ï¶õ´Ö¤ÎºÇŬ²½¤ò¥Ç¥Õ¥©¥ë¥È¤È¤·¡¢
|
||
´°Á´¤ÊÂ礤µ¤Î¥Ö¥í¥Ã¥¯¤¬¤Ê¤¯¤Ê¤é¤Ê¤¤¤è¤¦¤Ë¤·¤Þ¤¹¡£
|
||
minfree ¤ÎÃͤ¬ 10% ¤ÈÅù¤·¤¤¤«¤½¤ì°Ê¾å¤Î¾ì¹ç¤Ë¤Ï¡¢¥Õ¥é¥°¥á¥ó¥Æ¡¼¥·¥ç¥ó
|
||
¤¬ÌäÂê¤È¤Ï¤Ê¤ê¤Ë¤¯¤¯¡¢¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï»þ´Ö¤ÎºÇŬ²½¤ò¥Ç¥Õ¥©¥ë¥È¤Ë
|
||
¤·¤Þ¤¹¡£
|
||
.Pp
|
||
.Em ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤Ë´ØÏ¢¤·¤¿À©¸Â :
|
||
Ϣ³¤·¤¿¥Ö¥í¥Ã¥¯¤òºÇ¾®¤Î²óžÃÙ¤ì¤ÇÇÛÃÖ¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¤è¤¦¡¢
|
||
³Æ¥·¥ê¥ó¥À¤Ï°Û¤Ê¤ë²óž°ÌÃ֤ǤÎÍøÍѲÄǽ¤Ê¥Ö¥í¥Ã¥¯¿ô¤òÊÝ»ý¤·Â³¤±¤Þ¤¹¡£
|
||
¥Ç¥Õ¥©¥ë¥È¤Ç¤Ï²óž°ÌÃÖ¤ò 8 ʬ³ä¤Çɽ¤·¡¢¤³¤Î¤È¤¤ÎÁí³ç¾ðÊó¤Îʬ²òǽ¤Ï
|
||
ŵ·¿Åª¤Ê 3600 rpm ¤Î¥É¥é¥¤¥Ö¤Ç 2ms ¤Ë¤Ê¤ê¤Þ¤¹¡£
|
||
.Pp
|
||
Í×ÁÇ
|
||
.Fa fs_old_rotdelay
|
||
¤Ï¡¢Æ±°ì¥·¥ê¥ó¥À¾å¤ÇÊ̤Υǥ£¥¹¥¯Å¾Á÷¤ò³«»Ï¤¹¤ë
|
||
ºÇ¾®¥ß¥êÉÿô¤òÍ¿¤¨¤Þ¤¹¡£
|
||
¤³¤ì¤Ï¡¢¤¢¤ë¥Õ¥¡¥¤¥ëÃæ¤Î¥Ç¥£¥¹¥¯¥Ö¥í¥Ã¥¯¤Î¼þ²ó¤ÎÃæ¤Ç¤ÎºÇŬ¤ÊÇÛÃÖ¤ò
|
||
·èÄꤹ¤ë¤Î¤Ë»È¤ï¤ì¤Þ¤¹¡£
|
||
¥Ç¥Õ¥©¥ë¥È¤Î
|
||
.Fa fs_old_rotdelay
|
||
¤ÎÃÍ¤Ï 2ms ¤Ç¤¹¡£
|
||
.Pp
|
||
³Æ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï¡¢ÀÅŪ¤Ë³ä¤êÅö¤Æ¤é¤ì¤¿¿ô¤Î inode ¤ò»ý¤Ã¤Æ¤¤¤Þ¤¹¡£
|
||
inode ¤Ï¡¢¥Ç¥£¥¹¥¯¶õ´Ö¤¢¤¿¤ê
|
||
.Dv NBPI
|
||
¥Ð¥¤¥È³ÎÊݤµ¤ì¤Þ¤¹¡£
|
||
inode ¤òÇÛÃÖ¤¹¤ëÀïά¤Ï¡¢¶Ëü¤ËÊݼéŪ¤Ç¤¹¡£
|
||
.Pp
|
||
.Dv MINBSIZE
|
||
¤¬µö¤µ¤ì¤ëºÇ¾®¤Î¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤Ç¤¹¡£
|
||
.Dv MINBSIZE
|
||
¤¬ 4096 ¤Ç¤Ï¡¢2 ÃʤޤǤÎ(¥Ö¥í¥Ã¥¯)´ÖÀÜ»²¾È¤ò»È¤Ã¤Æ
|
||
2^32 ¤ÎÂ礤µ¤Î¥Õ¥¡¥¤¥ë¤òºî¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹¡£
|
||
.Dv MINBSIZE
|
||
¤Ï¡¢¥·¥ê¥ó¥À¥°¥ë¡¼¥×¥Ö¥í¥Ã¥¯¤òÊÝ»ý¤¹¤ë¤Î¤Ë½½Ê¬¤ÊÂ礤µ¤Ç¤Ê¤±¤ì¤Ð
|
||
¤Ê¤ê¤Þ¤»¤ó¡£
|
||
¤·¤¿¤¬¤Ã¤Æ
|
||
.Pq Fa ¹½Â¤ÂÎ cg
|
||
¤Ø¤ÎÊѹ¹¤ÏÂ礤µ¤ò
|
||
.Dv MINBSIZE
|
||
°ÊÆâ¤Ë¤·¤Æ¤ª¤«¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó¡£
|
||
¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤Ï·è¤·¤Æ
|
||
.Dv SBLOCKSIZE
|
||
¤ÎÂ礤µ°Ê¾å¤Ç¤Ï¤Ê¤¤¤È¤¤¤¦¤³¤È¤ËÃí°Õ¤·¤Æ²¼¤µ¤¤¡£
|
||
.Pp
|
||
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬¥Þ¥¦¥ó¥È¤µ¤ì¤Æ¤¤¤ë¥Ñ¥¹Ì¾¤Ï¡¢
|
||
.Fa fs_fsmnt
|
||
¤ËÊÝ»ý¤µ¤ì¤Þ¤¹¡£
|
||
.Dv MAXMNTLEN
|
||
¤Ï¡¢¤³¤Î̾Á°¤Î¤¿¤á¤Ë¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤Ë³ä¤êÅö¤Æ¤é¤ì¤¿Îΰè¤ÎÎ̤òÄêµÁ¤·¤Þ¤¹¡£
|
||
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥àËè¤ÎÁí³ç¾ðÊó¤ÎÎ̤ξå¸Â¤Ï¡¢
|
||
.Dv MAXCSBUFS
|
||
¤Ë¤è¤êÄêµÁ¤µ¤ì¤Æ¤¤¤Þ¤¹¡£
|
||
4096 ¥Ð¥¤¥È¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤Î¾ì¹ç¤Ç¤Ï¡¢¤³¤ì¤Ï¸½ºßºÇÂç 200 Ëü¥·¥ê¥ó¥Àʬ
|
||
ÍÑ°Õ¤µ¤ì¤Æ¤¤¤Þ¤¹¡£
|
||
.Pp
|
||
¤½¤ì¤¾¤ì¤Î¥·¥ê¥ó¥À¥°¥ë¡¼¥×¾ðÊó¤Ï¡¢ÀèƬ¤Î¥·¥ê¥ó¥À¥°¥ë¡¼¥×
|
||
¥Ç¡¼¥¿¥Ö¥í¥Ã¥¯¤«¤é³ÎÊݤµ¤ì¤¿¥Ö¥í¥Ã¥¯¤ËÍ×Ì󤵤ì¤Þ¤¹¡£
|
||
¤³¤ì¤é¤Î¥Ö¥í¥Ã¥¯¤Ï¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤Ë²Ã¤¨¤Æ
|
||
.Fa fs_csaddr
|
||
(
|
||
.Fa fs_cssize ¤ÎÂ礤µ)
|
||
¤«¤éÆɤ߹þ¤Þ¤ì¤Þ¤¹¡£
|
||
.Pp
|
||
.Sy Ãí°Õ:
|
||
.Fn sizeof "struct csum"
|
||
¤Ï
|
||
.Fn fs_cs
|
||
¥Þ¥¯¥í¤òÆ°¤«¤¹¤¿¤á¤Ë 2 ¤Î¤Ù¤¾è¤Ç¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó¡£
|
||
.Pp
|
||
.Em "¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯" :
|
||
¼þ²ó¥ì¥¤¥¢¥¦¥È¥Æ¡¼¥Ö¥ë¤ÎÂ礤µ¤Ï¡¢¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤¬
|
||
.Dv SBLOCKSIZE
|
||
¤ÎÂ礤µ¤ò»ý¤Ä¤³¤È¤Ë¤è¤êÀ©¸Â¤µ¤ì¤Æ¤¤¤Þ¤¹¡£
|
||
¤³¤ì¤é¤Î¥Æ¡¼¥Ö¥ë¤ÎÂ礤µ¤Ï¡¢¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤Ë
|
||
.Em µÕÈæÎã
|
||
¤·¤Þ¤¹¡£
|
||
¥»¥¯¥¿¥µ¥¤¥º¤¬ 2 ¤Î¤Ù¤¾è¤Ç¤Ê¤¤¤È¤¤Ë¤Ï¡¢¼þ²ó¥Ñ¥¿¡¼¥ó¤ò
|
||
.Pq Fa fs_cpc
|
||
¤À¤±·«¤êÊÖ¤¹¤Þ¤Ç¤Ë´Þ¤Þ¤ì¤ë¥·¥ê¥ó¥À¿ô¤¬Áý²Ã¤¹¤ë¤Î¤Ç¡¢
|
||
ƱÍͤ˥ơ¼¥Ö¥ë¤ÎÂ礤µ¤âÁý²Ã¤·¤Þ¤¹¡£
|
||
¼þ²ó¥ì¥¤¥¢¥¦¥È¥Æ¡¼¥Ö¥ë¤ÎÂ礤µ¤Ï¡¢
|
||
.Pq Fa struct fs
|
||
¤Ë»Ä¤Ã¤Æ¤¤¤ë¥Ð¥¤¥È¿ô¤«¤é³ä¤ê½Ð¤µ¤ì¤Þ¤¹¡£
|
||
.Pp
|
||
¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤¢¤¿¤ê¤Î¥Ç¡¼¥¿¥Ö¥í¥Ã¥¯¿ô¤Ï¡¢¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤¬
|
||
¤¿¤«¤À¤« 1 ¥Ö¥í¥Ã¥¯¤Ç¤¢¤ë¤Î¤Ç¡¢À©¸Â¤µ¤ì¤Æ¤¤¤Þ¤¹¡£
|
||
inode ¤È¶õ¤¥Ö¥í¥Ã¥¯¥Æ¡¼¥Ö¥ë¤Ï¡¢Ã±°ì¥Ö¥í¥Ã¥¯¤«¤é
|
||
¥·¥ê¥ó¥À¥°¥ë¡¼¥×¹½Â¤ÂÎ
|
||
.Pq Fa struct cg
|
||
¤Î¤¿¤á¤ÎÎΰè¤ò½ü¤¤¤¿»Ä¤ê¤Ë¤Ô¤Ã¤¿¤ê¹ç¤Ã¤Æ¤¤¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó¡£
|
||
.Pp
|
||
.Em Inode :
|
||
inode ¤Ï¡¢
|
||
.Ux
|
||
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥àÆâ¤Î¤¹¤Ù¤Æ¤Î¥Õ¥¡¥¤¥ë¤Ë´Ø¤¹¤ëÆ°ºî¤ÎÃæ¿´¤Ç¤¹¡£
|
||
³Æ¥¢¥¯¥Æ¥£¥Ö¤Ê¥Õ¥¡¥¤¥ë¡¢¥«¥ì¥ó¥È¥Ç¥£¥ì¥¯¥È¥ê¡¢¥Þ¥¦¥ó¥È¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¡¢
|
||
¥Æ¥¥¹¥È¥Õ¥¡¥¤¥ë¡¢root ¤Ë¤Ï¡¢¤½¤ì¤¾¤ì¥æ¥Ë¡¼¥¯¤Ê inode ¤¬³ä¤êÅö¤Æ¤é¤ì¤Þ¤¹¡£
|
||
inode ¤Ï¤½¤Î¥Ç¥Ð¥¤¥¹ / i ÈÖ¹æ¤Ë¤è¤Ã¤Æ `̾Á°ÉÕ¤±' ¤µ¤ì¤Æ¤¤¤Þ¤¹¡£
|
||
¾Ü¤·¤¯¤Ï¥¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë
|
||
.In ufs/ufs/inode.h
|
||
¤ò»²¾È¤·¤Æ²¼¤µ¤¤¡£
|
||
.Sh Îò»Ë
|
||
filsys ¤È̾ÉÕ¤±¤é¤ì¤¿¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¹½Â¤¤Ï
|
||
.At v6
|
||
¤«¤éÅо줷¤Þ¤·¤¿¡£¤³¤Î¥Þ¥Ë¥å¥¢¥ë¤Çµ½Ò¤µ¤ì¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï
|
||
.Bx 4.2
|
||
¤«¤éÅо줷¤Þ¤·¤¿¡£
|