diff options
Diffstat (limited to 'sys/gnu/fs/xfs/FreeBSD/xfs_buf.h')
| -rw-r--r-- | sys/gnu/fs/xfs/FreeBSD/xfs_buf.h | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/sys/gnu/fs/xfs/FreeBSD/xfs_buf.h b/sys/gnu/fs/xfs/FreeBSD/xfs_buf.h new file mode 100644 index 0000000..54a7fc6 --- /dev/null +++ b/sys/gnu/fs/xfs/FreeBSD/xfs_buf.h @@ -0,0 +1,304 @@ +/* + * 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> + +/* XXX: move this into buf.h */ +#ifndef B_MANAGED +#define B_MANAGED B_08000000 +#endif + +struct xfs_buf; +struct xfs_mount; +struct vnode; + +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 { + struct cdev *dev; + struct vnode *specvp; +} xfs_buftarg_t; + +typedef struct buf xfs_buf_t; +#define xfs_buf buf + +/* 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 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 + + /* 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) +#define XFS_BUF_UNSTALE(x) ((x)->b_flags &= ~XFS_B_STALE) +#define XFS_BUF_ISSTALE(x) ((x)->b_flags & XFS_B_STALE) +#define XFS_BUF_SUPER_STALE(x) {(x)->b_flags |= XFS_B_STALE;\ + (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_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_ISHOLD(x) BUF_REFCNT(x) + +#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_REFCNT(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_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) + +#define xfs_bdwrite(mp, bp) bdwrite(bp) +/* + { ((bp)->b_vp == NULL) ? (bp)->b_bdstrat = xfs_bdstrat_cb: 0; \ + (bp)->b_fsprivate3 = (mp); bdwrite(bp);} +*/ +#define xfs_bawrite(mp, bp) bawrite(bp) +/* + { ((bp)->b_vp == NULL) ? (bp)->b_bdstrat = xfs_bdstrat_cb: 0; \ + (bp)->b_fsprivate3 = (mp); bawrite(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(pb, off, len, data, rw) \ + panic("%s:%d: xfs_biomove NI", __FILE__, __LINE__) + +#define xfs_biozero(pb, off, len) \ + panic("%s:%d: xfs_biozero NI", __FILE__, __LINE__) + +/* already a function xfs_bwrite... fix this */ +#define XFS_bdwrite(bp) bdwrite(bp) +#define xfs_iowait(bp) bufwait(bp) + +#define xfs_binval(buftarg) printf("binval(buftarg.dev) NI\n") +#define XFS_bflush(buftarg) printf("bflush(buftarg.dev) NI\n") + +#define XFS_bdstrat(bp) printf("XFS_bdstrat NI\n") + +#define xfs_incore_relse(buftarg,delwri_only,wait) \ + printf("incore_relse(buftarg.dev,delwri_only,wait) NI\n") + +#define xfs_incore_match(buftarg,blkno,len,field,value) \ + printf("incore_match(buftarg.dev,blkno,len,field,value) NI \n") + +void xfs_baread(xfs_buftarg_t *targp, xfs_daddr_t ioff, size_t isize); + +extern void pdflush(struct vnode *, uint64_t); +#define XFS_pdflush(vnode,flags) \ + pdflush(vnode,flags) + +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 *); +int xfs_buf_iorequest(struct xfs_buf *bp); + +void XFS_freerbuf(xfs_buf_t *bp); +void XFS_nfreerbuf(xfs_buf_t *bp); + +void xfs_bpin(xfs_buf_t *bp); +void xfs_bunpin(xfs_buf_t *bp); +int xfs_ispin(xfs_buf_t *bp); +void xfs_bwait_unpin(xfs_buf_t *bp); + +#endif |
