diff options
Diffstat (limited to 'sys/gnu/fs/xfs/FreeBSD/xfs_buf.h')
| -rw-r--r-- | sys/gnu/fs/xfs/FreeBSD/xfs_buf.h | 348 |
1 files changed, 0 insertions, 348 deletions
diff --git a/sys/gnu/fs/xfs/FreeBSD/xfs_buf.h b/sys/gnu/fs/xfs/FreeBSD/xfs_buf.h deleted file mode 100644 index 34e579d..0000000 --- a/sys/gnu/fs/xfs/FreeBSD/xfs_buf.h +++ /dev/null @@ -1,348 +0,0 @@ -/* - * 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_BUF_H__ -#define __XFS_BUF_H__ - -#include <sys/bio.h> -#include <sys/buf.h> - -struct xfs_buf; -struct xfs_mount; -struct vnode; -typedef struct buf xfs_buf_t; -typedef uint32_t xfs_buf_flags_t; -#define xfs_buf buf - -extern struct buf_ops xfs_bo_ops; - -typedef enum { - XBRW_READ = 1, /* transfer into target memory */ - XBRW_WRITE = 2, /* transfer from target memory */ - XBRW_ZERO = 3, /* Zero target memory */ -} xfs_buf_rw_t; - -/* Buffer Read and Write Routines */ -extern void xfs_buf_ioend(xfs_buf_t *, int); -extern void xfs_buf_ioerror(xfs_buf_t *, int); -extern int xfs_buf_iostart(xfs_buf_t *, xfs_buf_flags_t); -extern int xfs_buf_iorequest(xfs_buf_t *); -extern int xfs_buf_iowait(xfs_buf_t *); -extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, xfs_caddr_t, xfs_buf_rw_t); - -/* Pinning Buffer Storage in Memory */ -extern void xfs_buf_pin(xfs_buf_t *); -extern void xfs_buf_unpin(xfs_buf_t *); -extern int xfs_buf_ispin(xfs_buf_t *); - - -typedef void (*xfs_buf_iodone_t)(struct xfs_buf *); /* call-back function on I/O completion */ -typedef void (*xfs_buf_relse_t)(struct xfs_buf *); /* call-back function on I/O completion */ -typedef int (*xfs_buf_bdstrat_t)(struct xfs_buf *); - -typedef struct xfs_buftarg { - /* this probaby redundant info, but stick with linux conventions for now */ - unsigned int bt_bsize; - unsigned int bt_sshift; - size_t bt_smask; - struct cdev *dev; - struct vnode *specvp; -} xfs_buftarg_t; - - -/* Finding and Reading Buffers */ -extern void xfs_buf_readahead(xfs_buftarg_t *, xfs_off_t, size_t, xfs_buf_flags_t); -/* Misc buffer rountines */ -extern int xfs_readonly_buftarg(xfs_buftarg_t *); - -/* These are just for xfs_syncsub... it sets an internal variable - * then passes it to VOP_FLUSH_PAGES or adds the flags to a newly gotten buf_t - */ -#define XBF_DONT_BLOCK 0 - -#define XFS_B_ASYNC B_ASYNC -#define XFS_B_DELWRI B_DELWRI -#define XFS_B_READ BIO_READ -#define XFS_B_WRITE BIO_WRITE - -#define XFS_B_STALE B_INVAL -#define XFS_BUF_LOCK 0 -#define XFS_BUF_TRYLOCK 0 -#define XFS_BUF_MAPPED 0 -#define BUF_BUSY 0 - -#define XBF_ORDERED 0 - - /* debugging routines might need this */ -#define XFS_BUF_BFLAGS(x) ((x)->b_flags) -#define XFS_BUF_ZEROFLAGS(x) ((x)->b_flags = 0) -#define XFS_BUF_STALE(x) ((x)->b_flags |= (XFS_B_STALE|B_NOCACHE)) -#define XFS_BUF_UNSTALE(x) ((x)->b_flags &= ~(XFS_B_STALE|B_NOCACHE)) -#define XFS_BUF_ISSTALE(x) ((x)->b_flags & (XFS_B_STALE|B_NOCACHE)) -#define XFS_BUF_SUPER_STALE(x) {(x)->b_flags |= (XFS_B_STALE|B_NOCACHE); \ - (x)->b_flags &= ~(XFS_B_DELWRI|B_CACHE);} - -#define XFS_BUF_MANAGE B_MANAGED -#define XFS_BUF_UNMANAGE(x) ((x)->b_flags &= ~B_MANAGED) - -#define XFS_BUF_DELAYWRITE(x) ((x)->b_flags |= XFS_B_DELWRI) -#define XFS_BUF_UNDELAYWRITE(x) ((x)->b_flags &= ~XFS_B_DELWRI) -#define XFS_BUF_ISDELAYWRITE(x) ((x)->b_flags & XFS_B_DELWRI) - -#define XFS_BUF_ERROR(x,no) xfs_buf_set_error((x), (no)) -#define XFS_BUF_GETERROR(x) xfs_buf_get_error(x) -#define XFS_BUF_ISERROR(x) (((x)->b_ioflags & BIO_ERROR) != 0) - -void static __inline__ -xfs_buf_set_error(struct buf *bp, int err) -{ - bp->b_ioflags |= BIO_ERROR; - bp->b_error = err; -} - -int static __inline__ -xfs_buf_get_error(struct buf *bp) -{ - return XFS_BUF_ISERROR(bp) ? (bp->b_error ? bp->b_error : EIO) : 0; -} - -#define XFS_BUF_DONE(x) ((x)->b_flags |= B_CACHE) -#define XFS_BUF_UNDONE(x) ((x)->b_flags &= ~B_CACHE) -#define XFS_BUF_ISDONE(x) ((x)->b_flags & B_CACHE) - -#define XFS_BUF_BUSY(x) ((x)->b_flags |= BUF_BUSY) -#define XFS_BUF_UNBUSY(x) ((x)->b_flags &= ~BUF_BUSY) -#define XFS_BUF_ISBUSY(x) (1) - -#define XFS_BUF_ASYNC(x) ((x)->b_flags |= B_ASYNC) -#define XFS_BUF_UNASYNC(x) ((x)->b_flags &= ~B_ASYNC) -#define XFS_BUF_ISASYNC(x) ((x)->b_flags & B_ASYNC) - -#define XFS_BUF_ORDERED(bp) ((bp)->b_flags |= XBF_ORDERED) -#define XFS_BUF_UNORDERED(bp) ((bp)->b_flags &= ~XBF_ORDERED) -#define XFS_BUF_ISORDERED(bp) ((bp)->b_flags & XBF_ORDERED) - -#define XFS_BUF_FLUSH(x) ((x)->b_flags |= B_00800000) -#define XFS_BUF_UNFLUSH(x) ((x)->b_flags &= ~B_00800000) -#define XFS_BUF_ISFLUSH(x) ((x)->b_flags & B_00800000) - -#define XFS_BUF_SHUT(x) printf("XFS_BUF_SHUT not implemented yet\n") -#define XFS_BUF_UNSHUT(x) printf("XFS_BUF_UNSHUT not implemented yet\n") -#define XFS_BUF_ISSHUT(x) (0) - -#define XFS_BUF_HOLD(x) ((void)0) -#define XFS_BUF_UNHOLD(x) ((void)0) - -#define XFS_BUF_READ(x) ((x)->b_iocmd = BIO_READ) -#define XFS_BUF_UNREAD(x) ((x)->b_iocmd = 0) -#define XFS_BUF_ISREAD(x) ((x)->b_iocmd == BIO_READ) - -#define XFS_BUF_WRITE(x) ((x)->b_iocmd = BIO_WRITE) -#define XFS_BUF_UNWRITE(x) ((x)->b_iocmd = 0) -#define XFS_BUF_ISWRITE(x) ((x)->b_iocmd == BIO_WRITE) - -#define XFS_BUF_ISUNINITIAL(x) (0) -#define XFS_BUF_UNUNINITIAL(x) (0) - -#define XFS_BUF_IODONE_FUNC(x) (x)->b_iodone -#define XFS_BUF_SET_IODONE_FUNC(x, f) (x)->b_iodone = (f) -#define XFS_BUF_CLR_IODONE_FUNC(x) (x)->b_iodone = NULL - -#define XFS_BUF_SET_BDSTRAT_FUNC(x, f) do { if(f != NULL) {} } while(0) -#define XFS_BUF_CLR_BDSTRAT_FUNC(x) ((void)0) - -#define XFS_BUF_BP_ISMAPPED(bp) (1) - -#define XFS_BUF_FSPRIVATE(buf, type) \ - ((type)(buf)->b_fsprivate1) -#define XFS_BUF_SET_FSPRIVATE(buf, value) \ - (buf)->b_fsprivate1 = (void *)(value) -#define XFS_BUF_FSPRIVATE2(buf, type) \ - ((type)(buf)->b_fsprivate2) -#define XFS_BUF_SET_FSPRIVATE2(buf, value) \ - (buf)->b_fsprivate2 = (void *)(value) -#define XFS_BUF_FSPRIVATE3(buf, type) \ - ((type)(buf)->b_fsprivate3) -#define XFS_BUF_SET_FSPRIVATE3(buf, value) \ - (buf)->b_fsprivate3 = (void *)(value) -#define XFS_BUF_SET_START(buf) \ - printf("XFS_BUF_SET_START: %s:%d\n", __FILE__, __LINE__) - -#define XFS_BUF_SET_BRELSE_FUNC(buf, value) \ - do { \ - printf("XFS_BUF_SET_BRELSE_FUNC: %s:%d\n", \ - __FILE__, __LINE__); \ - if (value != NULL ) {} \ - } while(0) - -#define XFS_BUF_PTR(bp) (xfs_caddr_t)((bp)->b_data) - -static __inline xfs_caddr_t -xfs_buf_offset(xfs_buf_t *bp, size_t offset) -{ - return XFS_BUF_PTR(bp) + offset; -} - -#define XFS_BUF_SET_PTR(bp, val, count) \ - do { \ - (bp)->b_data = (val); \ - (bp)->b_bcount = (count); \ - } while(0) - -#define XFS_BUF_ADDR(bp) ((bp)->b_blkno) -#define XFS_BUF_SET_ADDR(bp, blk) \ - ((bp)->b_blkno = blk) -#define XFS_BUF_OFFSET(bp) ((bp)->b_offset) -#define XFS_BUF_SET_OFFSET(bp, off) \ - ((bp)->b_offset = off) -#define XFS_BUF_COUNT(bp) ((bp)->b_bcount) -#define XFS_BUF_SET_COUNT(bp, cnt) \ - ((bp)->b_bcount = cnt) -#define XFS_BUF_SIZE(bp) ((bp)->b_bufsize) -#define XFS_BUF_SET_SIZE(bp, cnt) \ - ((bp)->b_bufsize = cnt) -#define XFS_BUF_SET_VTYPE_REF(bp, type, ref) -#define XFS_BUF_SET_VTYPE(bp, type) -#define XFS_BUF_SET_REF(bp, ref) - -#define XFS_BUF_VALUSEMA(bp) (BUF_ISLOCKED(bp) ? 0 : 1) -#define XFS_BUF_CPSEMA(bp) \ - (BUF_LOCK(bp, LK_EXCLUSIVE|LK_CANRECURSE | LK_SLEEPFAIL, NULL) == 0) - -#define XFS_BUF_PSEMA(bp,x) BUF_LOCK(bp, LK_EXCLUSIVE|LK_CANRECURSE, NULL) -#define XFS_BUF_VSEMA(bp) BUF_UNLOCK(bp) - -#define XFS_BUF_V_IODONESEMA(bp) bdone(bp) - -/* setup the buffer target from a buftarg structure */ -#define XFS_BUF_SET_TARGET(bp, target) \ - xfs_buf_set_target(bp, target) - -void xfs_buf_set_target(xfs_buf_t *, xfs_buftarg_t *); -xfs_buftarg_t *xfs_buf_get_target(xfs_buf_t *); - -/* return the dev_t being used */ -#define XFS_BUF_TARGET(bp) xfs_buf_get_target(bp) -#define XFS_BUFTARG_NAME(targp) devtoname((targp)->dev) - -#define XFS_BUF_SET_VTYPE_REF(bp, type, ref) -#define XFS_BUF_SET_VTYPE(bp, type) -#define XFS_BUF_SET_REF(bp, ref) - -#define XFS_BUF_ISPINNED(bp) xfs_buf_ispin(bp) - -xfs_buf_t * -xfs_buf_read_flags(xfs_buftarg_t *, xfs_daddr_t, size_t, int); - -#define xfs_buf_read(target, blkno, len, flags) \ - xfs_buf_read_flags(target, blkno, len, \ - XFS_BUF_LOCK | XFS_BUF_MAPPED) - -xfs_buf_t * -xfs_buf_get_flags(xfs_buftarg_t *, xfs_daddr_t, size_t, int); - -#define xfs_buf_get(target, blkno, len, flags) \ - xfs_buf_get_flags(target, blkno, len, \ - XFS_BUF_LOCK | XFS_BUF_MAPPED) - -/* the return value is never used ... why does linux define this functions this way? */ -static inline int xfs_bawrite(void *mp, xfs_buf_t *bp) -{ - /* Ditto for xfs_bawrite - bp->b_fspriv3 = mp; - bp->b_strat = xfs_bdstrat_cb; - xfs_buf_delwri_dequeue(bp); - return xfs_buf_iostart(bp, XBF_WRITE | XBF_ASYNC | _XBF_RUN_QUEUES); - */ - bawrite(bp); - return 0; -} - -static inline int xfs_bdwrite(void *mp, xfs_buf_t *bp) -{ - /* this is for io shutdown checking need to do this at some point RMC */ - /* probably should just change xfs to call a buf write function */ -#if 0 /* RMC */ - bp->b_strat = xfs_bdstrat_cb; - bp->b_fspriv3 = mp; - return xfs_buf_iostart(bp, XBF_DELWRI | XBF_ASYNC); -#endif - bdwrite(bp); - return 0; -} - -#define xfs_bpin(bp) xfs_buf_pin(bp) -#define xfs_bunpin(bp) xfs_buf_unpin(bp) - -#define xfs_buf_relse(bp) brelse(bp) -#define xfs_bp_mapin(bp) bp_mapin(bp) -#define xfs_xfsd_list_evict(x) _xfs_xfsd_list_evict(x) -#define xfs_buftrace(x,y) CTR2(KTR_BUF, "%s bp %p flags %X", bp, bp->b_flags) -#define xfs_biodone(bp) bufdone_finish(bp) - -#define xfs_incore(xfs_buftarg,blkno,len,lockit) \ - incore(&xfs_buftarg->specvp->v_bufobj, blkno); - -#define xfs_biomove(bp, off, len, data, rw) \ - xfs_buf_iomove((bp), (off), (len), (data), \ - ((rw) == XFS_B_WRITE) ? XBRW_WRITE : XBRW_READ) - -#define xfs_biozero(bp, off, len) \ - xfs_buf_iomove((bp), (off), (len), NULL, XBRW_ZERO) - -/* already a function xfs_bwrite... fix this */ -#define XFS_bdwrite(bp) bdwrite(bp) -#define xfs_iowait(bp) bufwait(bp) - -#define XFS_bdstrat(bp) xfs_buf_iorequest(bp) - -#define xfs_baread(target, rablkno, ralen) \ - xfs_buf_readahead((target), (rablkno), (ralen), XBF_DONT_BLOCK) - -struct xfs_mount; - -int XFS_bwrite(xfs_buf_t *bp); -xfs_buf_t* xfs_buf_get_empty(size_t, xfs_buftarg_t *targ); -xfs_buf_t* xfs_buf_get_noaddr(size_t, xfs_buftarg_t *targ); -void xfs_buf_free(xfs_buf_t *); - -extern void xfs_bwait_unpin(xfs_buf_t *bp); -extern xfs_buftarg_t *xfs_alloc_buftarg(struct vnode *, int); -extern void xfs_free_buftarg(xfs_buftarg_t *, int); -extern void xfs_wait_buftarg(xfs_buftarg_t *); -extern int xfs_setsize_buftarg(xfs_buftarg_t *, unsigned int, unsigned int); -extern unsigned int xfs_getsize_buftarg(struct xfs_buftarg *); -extern int xfs_flush_buftarg(xfs_buftarg_t *, int); - -#define xfs_binval(buftarg) xfs_flush_buftarg(buftarg, 1) -#define XFS_bflush(buftarg) xfs_flush_buftarg(buftarg, 1) - -#endif |
