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Commit 0b7e56a4 authored by Mandy Kirkconnell's avatar Mandy Kirkconnell Committed by Nathan Scott
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[XFS] Remove unused/obsoleted function: xfs_bmap_do_search_extents() 



SGI-PV: 951415
SGI-Modid: xfs-linux-melb:xfs-kern:208490a

Signed-off-by: default avatarMandy Kirkconnell <alkirkco@sgi.com>
Signed-off-by: default avatarNathan Scott <nathans@sgi.com>
parent 3ccb8b5f

fs/xfs/xfs_bmap.c

+0 −107
Original line number Diff line number Diff line
@@ -3467,113 +3467,6 @@ xfs_bmap_local_to_extents( 
	return error;

}



xfs_bmbt_rec_t *			/* pointer to found extent entry */

xfs_bmap_do_search_extents(

	xfs_bmbt_rec_t	*base,		/* base of extent list */

	xfs_extnum_t	lastx,		/* last extent index used */

	xfs_extnum_t	nextents,	/* number of file extents */

	xfs_fileoff_t	bno,		/* block number searched for */

	int		*eofp,		/* out: end of file found */

	xfs_extnum_t	*lastxp,	/* out: last extent index */

	xfs_bmbt_irec_t	*gotp,		/* out: extent entry found */

	xfs_bmbt_irec_t	*prevp)		/* out: previous extent entry found */

{

	xfs_bmbt_rec_t	*ep;		/* extent list entry pointer */

	xfs_bmbt_irec_t	got;		/* extent list entry, decoded */

	int		high;		/* high index of binary search */

	int		low;		/* low index of binary search */



	/*

	 * Initialize the extent entry structure to catch access to

	 * uninitialized br_startblock field.

	 */

	got.br_startoff = 0xffa5a5a5a5a5a5a5LL;

	got.br_blockcount = 0xa55a5a5a5a5a5a5aLL;

	got.br_state = XFS_EXT_INVALID;



#if XFS_BIG_BLKNOS

	got.br_startblock = 0xffffa5a5a5a5a5a5LL;

#else

	got.br_startblock = 0xffffa5a5;

#endif



	if (lastx != NULLEXTNUM && lastx < nextents)

		ep = base + lastx;

	else

		ep = NULL;

	prevp->br_startoff = NULLFILEOFF;

	if (ep && bno >= (got.br_startoff = xfs_bmbt_get_startoff(ep)) &&

	    bno < got.br_startoff +

		  (got.br_blockcount = xfs_bmbt_get_blockcount(ep)))

		*eofp = 0;

	else if (ep && lastx < nextents - 1 &&

		 bno >= (got.br_startoff = xfs_bmbt_get_startoff(ep + 1)) &&

		 bno < got.br_startoff +

		       (got.br_blockcount = xfs_bmbt_get_blockcount(ep + 1))) {

		lastx++;

		ep++;

		*eofp = 0;

	} else if (nextents == 0)

		*eofp = 1;

	else if (bno == 0 &&

		 (got.br_startoff = xfs_bmbt_get_startoff(base)) == 0) {

		ep = base;

		lastx = 0;

		got.br_blockcount = xfs_bmbt_get_blockcount(ep);

		*eofp = 0;

	} else {

		low = 0;

		high = nextents - 1;

		/* binary search the extents array */

		while (low <= high) {

			XFS_STATS_INC(xs_cmp_exlist);

			lastx = (low + high) >> 1;

			ep = base + lastx;

			got.br_startoff = xfs_bmbt_get_startoff(ep);

			got.br_blockcount = xfs_bmbt_get_blockcount(ep);

			if (bno < got.br_startoff)

				high = lastx - 1;

			else if (bno >= got.br_startoff + got.br_blockcount)

				low = lastx + 1;

			else {

				got.br_startblock = xfs_bmbt_get_startblock(ep);

				got.br_state = xfs_bmbt_get_state(ep);

				*eofp = 0;

				*lastxp = lastx;

				*gotp = got;

				return ep;

			}

		}

		if (bno >= got.br_startoff + got.br_blockcount) {

			lastx++;

			if (lastx == nextents) {

				*eofp = 1;

				got.br_startblock = xfs_bmbt_get_startblock(ep);

				got.br_state = xfs_bmbt_get_state(ep);

				*prevp = got;

				ep = NULL;

			} else {

				*eofp = 0;

				xfs_bmbt_get_all(ep, prevp);

				ep++;

				got.br_startoff = xfs_bmbt_get_startoff(ep);

				got.br_blockcount = xfs_bmbt_get_blockcount(ep);

			}

		} else {

			*eofp = 0;

			if (ep > base)

				xfs_bmbt_get_all(ep - 1, prevp);

		}

	}

	if (ep) {

		got.br_startblock = xfs_bmbt_get_startblock(ep);

		got.br_state = xfs_bmbt_get_state(ep);

	}

	*lastxp = lastx;

	*gotp = got;

	return ep;

}



/*

 * Search the extent records for the entry containing block bno.

 * If bno lies in a hole, point to the next entry.  If bno lies

fs/xfs/xfs_bmap.h

+0 −8
Original line number Diff line number Diff line
@@ -362,14 +362,6 @@ xfs_bmbt_rec_t * 
xfs_bmap_search_multi_extents(struct xfs_ifork *, xfs_fileoff_t, int *,

			xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);



/*

 * Search an extent list for the extent which includes block

 * bno.

 */

xfs_bmbt_rec_t *xfs_bmap_do_search_extents(xfs_bmbt_rec_t *,

			xfs_extnum_t, xfs_extnum_t, xfs_fileoff_t, int *,

			xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);



#endif	/* __KERNEL__ */



#endif	/* __XFS_BMAP_H__ */