patch-2.4.25 linux-2.4.25/fs/xfs/xfs_clnt.h

• Lines: 105
• Date: 2004-02-18 05:36:32.000000000 -0800
• Orig file: linux-2.4.24/fs/xfs/xfs_clnt.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.24/fs/xfs/xfs_clnt.h linux-2.4.25/fs/xfs/xfs_clnt.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2000-2003 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 */
+};
+
+/*
+ * 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_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_NOLOGFLUSH	0x04000000	/* Don't flush for log blocks */
+#define XFSMNT_IDELETE		0x08000000	/* inode cluster delete */
+
+#endif	/* __XFS_CLNT_H__ */