| /* |
| * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
| * All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms 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. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| #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 flags2; /* flags -> see XFSMNT2_... macros below */ |
| int logbufs; /* Number of log buffers, -1 to default */ |
| int logbufsize; /* Size of log buffers, -1 to default */ |
| char fsname[MAXNAMELEN+1]; /* data device name */ |
| char rtname[MAXNAMELEN+1]; /* realtime device filename */ |
| char logname[MAXNAMELEN+1]; /* journal device filename */ |
| char mtpt[MAXNAMELEN+1]; /* 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 */ |
| int ihashsize; /* inode hash table size (buckets) */ |
| }; |
| |
| /* |
| * XFS mount option flags -- args->flags1 |
| */ |
| #define XFSMNT_ATTR2 0x00000001 /* allow ATTR2 EA format */ |
| #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_QUIET 0x00000080 /* don't report mount errors */ |
| #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 default) */ |
| #define XFSMNT_32BITINODES 0x00200000 /* restrict inodes to 32 |
| * bits of address space */ |
| #define XFSMNT_GQUOTA 0x00400000 /* group quota accounting */ |
| #define XFSMNT_GQUOTAENF 0x00800000 /* group quota limit |
| * enforcement */ |
| #define XFSMNT_NOUUID 0x01000000 /* Ignore fs uuid */ |
| #define XFSMNT_DMAPI 0x02000000 /* enable dmapi/xdsm */ |
| #define XFSMNT_BARRIER 0x04000000 /* use write barriers */ |
| #define XFSMNT_IKEEP 0x08000000 /* inode cluster delete */ |
| #define XFSMNT_SWALLOC 0x10000000 /* turn on stripe width |
| * allocation */ |
| #define XFSMNT_DIRSYNC 0x40000000 /* sync creat,link,unlink,rename |
| * symlink,mkdir,rmdir,mknod */ |
| #define XFSMNT_FLAGS2 0x80000000 /* more flags set in flags2 */ |
| |
| /* |
| * XFS mount option flags -- args->flags2 |
| */ |
| #define XFSMNT2_COMPAT_IOSIZE 0x00000001 /* don't report large preferred |
| * I/O size in stat(2) */ |
| #define XFSMNT2_FILESTREAMS 0x00000002 /* enable the filestreams |
| * allocator */ |
| |
| #endif /* __XFS_CLNT_H__ */ |
