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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | /* * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * Further, this software is distributed without any warranty that it is * free of the rightful claim of any third person regarding infringement * or the like. Any license provided herein, whether implied or * otherwise, applies only to this software file. Patent licenses, if * any, provided herein do not apply to combinations of this program with * other software, or any other product whatsoever. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc., 59 * Temple Place - Suite 330, Boston MA 02111-1307, USA. * * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, * Mountain View, CA 94043, or: * * http://www.sgi.com * * For further information regarding this notice, see: * * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ */ #ifndef __XFS_CLNT_H__ #define __XFS_CLNT_H__ /* * XFS arguments structure, constructed from the arguments we * are passed via the mount system call. * * NOTE: The mount system call is handled differently between * Linux and IRIX. In IRIX we worked work with a binary data * structure coming in across the syscall interface from user * space (the mount userspace knows about each filesystem type * and the set of valid options for it, and converts the users * argument string into a binary structure _before_ making the * system call), and the ABI issues that this implies. * * In Linux, we are passed a comma separated set of options; * ie. a NULL terminated string of characters. Userspace mount * code does not have any knowledge of mount options expected by * each filesystem type and so each filesystem parses its mount * options in kernel space. * * For the Linux port, we kept this structure pretty much intact * and use it internally (because the existing code groks it). */ struct xfs_mount_args { int flags; /* flags -> see XFSMNT_... macros below */ int logbufs; /* Number of log buffers, -1 to default */ int logbufsize; /* Size of log buffers, -1 to default */ char fsname[MAXNAMELEN]; /* data device name */ char rtname[MAXNAMELEN]; /* realtime device filename */ char logname[MAXNAMELEN]; /* journal device filename */ char mtpt[MAXNAMELEN]; /* filesystem mount point */ int sunit; /* stripe unit (BBs) */ int swidth; /* stripe width (BBs), multiple of sunit */ uchar_t iosizelog; /* log2 of the preferred I/O size */ /* The remainder is for CXFS support. */ char **servlist; /* Table of hosts which may be servers */ int *servlistlen; /* Table of hostname lengths. */ int slcount; /* Count of hosts which may be servers. */ int stimeout; /* Server timeout in milliseconds */ int ctimeout; /* Client timeout in milliseconds */ char *server; /* Designated server hostname (for remount). */ int servlen; /* Length of server hostname (for remount). */ int servcell; /* Server cell (internal testing only) */ }; /* * XFS mount option flags */ #define XFSMNT_CHKLOG 0x00000001 /* check log */ #define XFSMNT_WSYNC 0x00000002 /* safe mode nfs mount * compatible */ #define XFSMNT_INO64 0x00000004 /* move inode numbers up * past 2^32 */ #define XFSMNT_UQUOTA 0x00000008 /* user quota accounting */ #define XFSMNT_PQUOTA 0x00000010 /* IRIX prj quota accounting */ #define XFSMNT_UQUOTAENF 0x00000020 /* user quota limit * enforcement */ #define XFSMNT_PQUOTAENF 0x00000040 /* IRIX project quota limit * enforcement */ #define XFSMNT_NOATIME 0x00000100 /* don't modify access * times on reads */ #define XFSMNT_NOALIGN 0x00000200 /* don't allocate at * stripe boundaries*/ #define XFSMNT_RETERR 0x00000400 /* return error to user */ #define XFSMNT_NORECOVERY 0x00000800 /* no recovery, implies * read-only mount */ #define XFSMNT_SHARED 0x00001000 /* shared XFS mount */ #define XFSMNT_IOSIZE 0x00002000 /* optimize for I/O size */ #define XFSMNT_OSYNCISOSYNC 0x00004000 /* o_sync is REALLY o_sync */ /* (osyncisdsync is now default) */ #define XFSMNT_CLNTONLY 0x00008000 /* cxfs mount as client only */ #define XFSMNT_UNSHARED 0x00010000 /* cxfs filesystem mounted * unshared */ #define XFSMNT_CHGCLNTONLY 0x00020000 /* changing client only flag */ /* (for remount only) */ #define XFSMNT_SERVCELL 0x00040000 /* setting server cell */ /* (allowed on remount) */ #define XFSMNT_MAKESERVER 0x00080000 /* become the server (remount */ /* only) */ #define XFSMNT_NOTSERVER 0x00100000 /* give up being the server */ /* (remount only) */ #define XFSMNT_DMAPI 0x00200000 /* enable dmapi/xdsm */ #define XFSMNT_GQUOTA 0x00400000 /* group quota accounting */ #define XFSMNT_GQUOTAENF 0x00800000 /* group quota limit * enforcement */ #define XFSMNT_NOUUID 0x01000000 /* Ignore fs uuid */ #define XFSMNT_32BITINODES 0x02000000 /* restrict inodes to 32 * bits of address space */ #define XFSMNT_IRIXSGID 0x04000000 /* Irix-style sgid inheritance */ #define XFSMNT_NOLOGFLUSH 0x08000000 /* Don't flush for log blocks */ /* Did we get any args for CXFS to consume? */ #define XFSARGS_FOR_CXFSARR(ap) \ ((ap)->servlist || (ap)->slcount >= 0 || \ (ap)->stimeout >= 0 || (ap)->ctimeout >= 0 || \ (ap)->flags & (XFSMNT_CLNTONLY | XFSMNT_UNSHARED)) #endif /* __XFS_CLNT_H__ */ |