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/* * 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_FRW_H__ #define __XFS_FRW_H__ struct xfs_vnode; struct bhv_desc; struct xfs_mount; struct xfs_iocore; struct xfs_inode; struct xfs_bmbt_irec; struct xfs_buf; struct xfs_iomap; #if defined(XFS_RW_TRACE) /* * Defines for the trace mechanisms in xfs_lrw.c. */ #define XFS_RW_KTRACE_SIZE 128 #define XFS_READ_ENTER 1 #define XFS_WRITE_ENTER 2 #define XFS_IOMAP_READ_ENTER 3 #define XFS_IOMAP_WRITE_ENTER 4 #define XFS_IOMAP_READ_MAP 5 #define XFS_IOMAP_WRITE_MAP 6 #define XFS_IOMAP_WRITE_NOSPACE 7 #define XFS_ITRUNC_START 8 #define XFS_ITRUNC_FINISH1 9 #define XFS_ITRUNC_FINISH2 10 #define XFS_CTRUNC1 11 #define XFS_CTRUNC2 12 #define XFS_CTRUNC3 13 #define XFS_CTRUNC4 14 #define XFS_CTRUNC5 15 #define XFS_CTRUNC6 16 #define XFS_BUNMAPI 17 #define XFS_INVAL_CACHED 18 #define XFS_DIORD_ENTER 19 #define XFS_DIOWR_ENTER 20 #define XFS_SENDFILE_ENTER 21 #define XFS_WRITEPAGE_ENTER 22 #define XFS_RELEASEPAGE_ENTER 23 #define XFS_IOMAP_ALLOC_ENTER 24 #define XFS_IOMAP_ALLOC_MAP 25 #define XFS_IOMAP_UNWRITTEN 26 extern void xfs_rw_enter_trace(int, struct xfs_iocore *, const char *, size_t, loff_t, int); extern void xfs_inval_cached_trace(struct xfs_iocore *, xfs_off_t, xfs_off_t, xfs_off_t, xfs_off_t); #else #define xfs_rw_enter_trace(tag, io, buf, size, offset, ioflags) #define xfs_inval_cached_trace(io, offset, len, first, last) #endif /* * Maximum count of bmaps used by read and write paths. */ #define XFS_MAX_RW_NBMAPS 4 extern int xfs_bmap(struct bhv_desc *, xfs_off_t, ssize_t, int, struct xfs_iomap *, int *); extern int xfsbdstrat(struct xfs_mount *, struct xfs_buf *); extern int xfs_bdstrat_cb(struct xfs_buf *); extern int xfs_zero_eof(struct xfs_vnode *, struct xfs_iocore *, xfs_off_t, xfs_fsize_t, xfs_fsize_t); extern void xfs_inval_cached_pages(struct xfs_vnode*, struct xfs_iocore *, xfs_off_t, int, int); extern ssize_t xfs_read(bhv_desc_t *, uio_t *, int, cred_t *); extern ssize_t xfs_write(bhv_desc_t *, uio_t *, int, cred_t *); extern int xfs_dev_is_read_only(struct xfs_mount *, char *); extern int xfs_read_file(struct xfs_mount *mp, struct xfs_inode *ip, struct uio *uio, int ioflag); extern int xfs_write_file(struct xfs_inode *, struct uio *, int); #endif /* __XFS_FRW_H__ */