#ifndef __XFS_BUF_H__
#define __XFS_BUF_H__
#ifdef SIM
#define _USING_BUF_T
#else
#define _USING_BUF_T
//#define _USING_PAGEBUF_T
#endif
#ifdef _USING_BUF_T
#include <sys/buf.h>
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 B_READ
#define XFS_BUF_BFLAGS(x) ((x)->b_flags) /* debugging routines might need this */
#define XFS_BUF_ZEROFLAGS(x) ((x)->b_flags = 0)
#define XFS_BUF_STALE(x) ((x)->b_flags |= B_STALE)
#define XFS_BUF_UNSTALE(x) ((x)->b_flags &= ~B_STALE)
#define XFS_BUF_ISSTALE(x) ((x)->b_flags & B_STALE)
#define XFS_BUF_SUPER_STALE(x) (x)->b_flags |= B_STALE;\
(x)->b_flags &= ~(B_DELWRI|B_DONE)
#define XFS_BUF_DELAYWRITE(x) ((x)->b_flags |= B_DELWRI)
#define XFS_BUF_UNDELAYWRITE(x) ((x)->b_flags &= ~B_DELWRI)
#define XFS_BUF_ISDELAYWRITE(x) ((x)->b_flags & B_DELWRI)
#define XFS_BUF_ERROR(x,no) bioerror(x,no)
#define XFS_BUF_GETERROR(x) geterror(x)
#define XFS_BUF_ISERROR(x) ((x)->b_flags & B_ERROR)
#define XFS_BUF_DONE(x) ((x)->b_flags |= B_DONE)
#define XFS_BUF_UNDONE(x) ((x)->b_flags &= ~B_DONE)
#define XFS_BUF_ISDONE(x) ((x)->b_flags & B_DONE)
#define XFS_BUF_BUSY(x) ((x)->b_flags |= B_BUSY)
#define XFS_BUF_UNBUSY(x) ((x)->b_flags &= ~B_BUSY)
#define XFS_BUF_ISBUSY(x) ((x)->b_flags & B_BUSY)
#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_SHUT(x) ((x)->b_flags |= B_XFS_SHUT)
#define XFS_BUF_UNSHUT(x) ((x)->b_flags &= ~B_XFS_SHUT)
#define XFS_BUF_ISSHUT(x) ((x)->b_flags & B_XFS_SHUT)
#define XFS_BUF_HOLD(x) ((x)->b_flags |= B_HOLD)
#define XFS_BUF_UNHOLD(x) ((x)->b_flags &= ~B_HOLD)
#define XFS_BUF_ISHOLD(x) ((x)->b_flags & B_HOLD)
/* this may go away... calling iostart will define read or write */
/* used for irix at the moment not needed for linux? */
#define XFS_BUF_READ(x) ((x)->b_flags |= B_READ)
#define XFS_BUF_UNREAD(x) ((x)->b_flags &= ~B_READ)
#define XFS_BUF_ISREAD(x) ((x)->b_flags & B_READ)
#define XFS_BUF_WRITE(x) ((x)->b_flags |= B_WRITE)
#define XFS_BUF_UNWRITE(x) ((x)->b_flags &= ~B_WRITE)
#define XFS_BUF_ISWRITE(x) ((x)->b_flags & B_WRITE)
#define XFS_BUF_UNCACHED(x) ((x)->b_flags |= B_UNCACHED)
#define XFS_BUF_UNUNCACHED(x) ((x)->b_flags &= ~B_UNCACHED)
#define XFS_BUF_ISUNCACHED(x) ((x)->b_flags & B_UNCACHED)
#define XFS_BUF_ISUNINITIAL(x) ((x)->b_flags & B_UNINITIAL)
#define XFS_BUF_UNUNINITIAL(x) ((x)->b_flags &= ~B_UNINITIAL)
#define XFS_BUF_AGE(x) ((x)->b_flags |= B_AGE)
/* hmm what does the mean on linux? may go away */
#define XFS_BUF_PAGEIO(x) ((x)->b_flags & B_PAGEIO)
#define XFS_BUF_BP_ISMAPPED(bp) ((bp->b_flags & (B_PAGEIO|B_MAPPED)) != B_PAGEIO)
#define XFS_BUF_IS_IOSPL(bp) (bp->b_flags & (B_GR_BUF|B_PRV_BUF))
#define XFS_BUF_IS_GRIO( bp ) (bp->b_flags & B_GR_BUF)
#define XFS_BUF_IODONE_FUNC(buf) (buf)->b_iodone
#define XFS_BUF_SET_IODONE_FUNC(buf, func) \
if ((buf)->b_iodone == NULL) { \
(buf)->b_iodone = (func); \
}
#define XFS_BUF_CLR_IODONE_FUNC(buf) \
(buf)->b_iodone = NULL
#define XFS_BUF_SET_BDSTRAT_FUNC(buf, func) \
if ((buf)->b_bdstrat == NULL) { \
(buf)->b_bdstrat = (func); \
}
#define XFS_BUF_CLR_BDSTRAT_FUNC(buf) \
(buf)->b_bdstrat = NULL
#define XFS_BUF_FSPRIVATE(buf, type) \
((type)(buf)->b_fsprivate)
#define XFS_BUF_SET_FSPRIVATE(buf, value) \
(buf)->b_fsprivate = (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) \
(buf)->b_start = lbolt
#define XFS_BUF_PTR(bp) ((bp)->b_un.b_addr)
#define XFS_BUF_ADDR(bp) ((bp)->b_blkno)
#define XFS_BUF_SET_ADDR(bp, blk) \
((bp)->b_blkno = blk)
#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)
/* setup the buffer target from a buftarg structure */
#define XFS_BUF_SET_TARGET(bp, target) \
(bp)->b_target = target; \
(bp)->b_edev = (target)->dev
/* return the dev_t being used */
#define XFS_BUF_TARGET(bp) \
((bp)->b_edev)
#define XFS_BUF_SET_VTYPE_REF(bp, type, ref) \
(bp)->b_bvtype = (type); \
(bp)->b_ref = (ref)
#define XFS_BUF_SET_VTYPE(bp, type) \
(bp)->b_bvtype = (type)
#define XFS_BUF_SET_REF(bp, ref) \
(bp)->b_ref = (ref)
#define XFS_BUF_ISPINNED(bp) ((bp)->b_pincount > 0)
int
xfs_bdstrat_cb(struct xfs_buf *bp);
#define xfs_buf_read(target, blkno, len, flags) \
read_buf_targ(target, blkno, len, flags)
#define xfs_buf_get(target, blkno, len, flags) \
get_buf_targ(target, blkno, len, flags)
#define xfs_bdwrite(mp, bp) \
{ ((bp)->b_vp == NULL) ? (bp)->b_bdstrat = xfs_bdstrat_cb: 0; \
(bp)->b_fsprivate3 = (mp); bdwrite(bp);}
#define xfs_bawrite(mp, 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_bpin(bp) \
bpin(bp)
#define xfs_bunpin(bp) \
bunpin(bp)
#define xfs_bwait_unpin(bp) \
bwait_unpin(bp)
#define xfs_bp_mapin(bp) \
bp_mapin(bp)
#endif /* _USING_BUF_T */
#ifdef _USING_PAGEBUF_T
#include <linux/page_buf.h>
/* 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 PBF_ASYNC
#define XFS_B_DELWRI PBF_DELWRI
#define XFS_B_READ PBF_READ
#define XFS_B_STALE (1 << 31)
#define XFS_BUF_BFLAGS(x) ((x)->pb_flags) /* debugging routines might need this */
#define XFS_BUF_ZEROFLAGS(x) ((x)->pb_flags = 0)
#define XFS_BUF_STALE(x) ((x)->pb_flags |= XFS_B_STALE)
#define XFS_BUF_UNSTALE(x) ((x)->pb_flags &= ~XFS_B_STALE)
#define XFS_BUF_ISSTALE(x) ((x)->pb_flags & XFS_B_STALE)
#define XFS_BUF_SUPER_STALE(x) (x)->pb_flags & XFS_B_STALE;\
(x)->pb_flags &= ~(PBF_DELWRI|PBF_COMPLETED)
#define XFS_BUF_DELAYWRITE(x) ((x)->pb_flags |= PBF_DELWRI)
#define XFS_BUF_UNDELAYWRITE(x) ((x)->pb_flags &= ~PBF_DELWRI)
#define XFS_BUF_ISDELAYWRITE(x) ((x)->pb_flags & PBF_DELWRI)
#define XFS_BUF_ERROR(x,no) pagebuf_ioerror(x,no)
#define XFS_BUF_GETERROR(x) pagebuf_geterror(x)
#define XFS_BUF_ISERROR(x) (pagebuf_geterror(x)?1:0)
#define XFS_BUF_DONE(x) ((x)->pb_flags |= PBF_COMPLETED)
#define XFS_BUF_UNDONE(x) ((x)->pb_flags &= ~PBF_COMPLETED)
#define XFS_BUF_ISDONE(x) ((x)->pb_flags & PBF_COMPLETED)
#define XFS_BUF_BUSY(x)
#define XFS_BUF_UNBUSY(x)
#define XFS_BUF_ISBUSY(x) 1 /* only checked in asserts... keep it from tripping any */
#define XFS_BUF_ASYNC(x) ((x)->pb_flags |= PBF_ASYNC)
#define XFS_BUF_UNASYNC(x) ((x)->pb_flags &= ~PBF_ASYNC)
#define XFS_BUF_ISASYNC(x) ((x)->pb_flags & PBF_ASYNC)
#define XFS_BUF_SHUT(x) /* error! not implemeneted yet */
#define XFS_BUF_UNSHUT(x) /* error! not implemeneted yet */
#define XFS_BUF_ISSHUT(x) (0)
#define XFS_BUF_HOLD(x) /* error! not implemeneted yet */
#define XFS_BUF_UNHOLD(x) /* error! not implemeneted yet */
#define XFS_BUF_ISHOLD(x) (1)
/* this may go away... calling iostart will define read or write */
/* used for irix at the moment not needed for linux? */
#define XFS_BUF_READ(x) ((x)->pb_flags |= PBF_READ)
#define XFS_BUF_UNREAD(x) ((x)->pb_flags &= ~PBF_READ)
#define XFS_BUF_ISREAD(x) ((x)->pb_flags & PBF_READ)
#define XFS_BUF_WRITE(x) ((x)->pb_flags |= PBF_WRITE)
#define XFS_BUF_UNWRITE(x) ((x)->pb_flags &= ~PBF_WRITE)
#define XFS_BUF_ISWRITE(x) ((x)->pb_flags & PBF_WRITE)
#define XFS_BUF_UNCACHED(x) /* error! not implemeneted yet */
#define XFS_BUF_UNUNCACHED(x) /* error! not implemeneted yet */
#define XFS_BUF_ISUNCACHED(x) (0)
#define XFS_BUF_ISUNINITIAL(x) ((x)->pb_flags & PBF_UNINITIAL)
#define XFS_BUF_UNUNINITIAL(x) ((x)->pb_flags &= ~PBF_UNINITIAL)
#define XFS_BUF_AGE(x) /* error! not implemeneted yet */
#define XFS_BUF_BP_ISMAPPED(bp) 1 /* error! not implemeneted yet */
#define XFS_BUF_IS_IOSPL(bp) 1 /* error! not implemeneted yet */
#define XFS_BUF_IS_GRIO(bp) 1 /* error! not implemeneted yet */
/* hmm what does the mean on linux? may go away */
#define XFS_BUF_PAGEIO(x) /* error! not implemeneted yet */
typedef struct page_buf_s xfs_buf_t;
#define xfs_buf page_buf_s
struct inode;
typedef struct buftarg {
struct inode *inode;
dev_t dev;
} buftarg_t;
#define XFS_BUF_IODONE_FUNC(buf) (buf)->pb_iodone
#define XFS_BUF_SET_IODONE_FUNC(buf, func) \
if ((buf)->pb_iodone == NULL) { \
pagebuf_hold(buf); \
} \
(buf)->pb_iodone = (func)
#define XFS_BUF_CLR_IODONE_FUNC(buf) \
if ((buf)->pb_iodone) { \
(buf)->pb_iodone = NULL; \
pagebuf_rele(buf); \
}
#define XFS_BUF_SET_BDSTRAT_FUNC(buf, func)
#define XFS_BUF_CLR_BDSTRAT_FUNC(buf)
#define XFS_BUF_FSPRIVATE(buf, type) \
((type)(buf)->pb_fspriv)
#define XFS_BUF_SET_FSPRIVATE(buf, value) \
(buf)->pb_fspriv = (void *)(value)
#define XFS_BUF_FSPRIVATE2(buf, type) \
((type)(buf)->pb_fspriv2)
#define XFS_BUF_SET_FSPRIVATE2(buf, value) \
(buf)->pb_fspriv2 = (void *)(value)
#define XFS_BUF_FSPRIVATE3(buf, type) 1
#define XFS_BUF_SET_FSPRIVATE3(buf, value)
#define XFS_BUF_SET_START(buf)
#define XFS_BUF_PTR(bp) ((bp)->pb_addr)
#define XFS_BUF_ADDR(bp) ((bp)->pb_file_offset >> 9)
#define XFS_BUF_SET_ADDR(bp, blk) \
((bp)->pb_file_offset = (blk) << 9)
#define XFS_BUF_COUNT(bp) ((bp)->pb_count_desired)
#define XFS_BUF_SET_COUNT(bp, cnt) \
((bp)->pb_count_desired = cnt)
#define XFS_BUF_SIZE(bp) ((bp)->pb_buffer_length)
#define XFS_BUF_SET_SIZE(bp, cnt) \
((bp)->pb_buffer_length = 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_ISPINNED(bp) 0 /* ERROR implement me */
/* setup the buffer target from a buftarg structure */
#define XFS_BUF_SET_TARGET(bp, target)
/* return the dev_t being used */
#define XFS_BUF_TARGET(bp) 1
#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_read(target, blkno, len, flags) \
pagebuf_get((target)->inode, (blkno) << 9, (len) << 9, \
PBF_LOCK | PBF_READ)
#define xfs_buf_get(target, blkno, len, flags) \
pagebuf_get((target)->inode, (blkno) << 9, (len) << 9, \
PBF_LOCK)
#define xfs_bdwrite(mp, bp) \
bp->pb_flags |= PBF_DELWRI; \
pagebuf_rele(bp)
#define xfs_bawrite(mp, bp) pagebuf_iostart(bp, PBF_WRITE | PBF_ASYNC)
#define xfs_buf_relse(bp) \
pagebuf_rele(bp)
#define xfs_bpin(bp) \
pagebuf_pin(bp)
#define xfs_bunpin(bp) \
pagebuf_unpin(bp)
#define xfs_bwait_unpin(bp) \
pagebuf_wait_unpin(bp)
#define xfs_bp_mapin(bp) \
pagebuf_mapin(bp)
#endif /* _USING_PAGEBUF_T */
#endif
![[BACK]](/icons/back.gif){kind=icon}
Return to xfs_buf.h CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [Development] / xfs-linux-nodel