[XFS] Remove unused/obsoleted function: xfs_bmap_do_search_extents()
SGI-PV: 951415 SGI-Modid: xfs-linux-melb:xfs-kern:208490a Signed-off-by: Mandy Kirkconnell <alkirkco@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
This commit is contained in:
Mandy Kirkconnell
Nathan Scott
Родитель
3ccb8b5f65
Коммит
0b7e56a450
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@ -3467,113 +3467,6 @@ done:
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return error;
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}
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xfs_bmbt_rec_t * /* pointer to found extent entry */
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xfs_bmap_do_search_extents(
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xfs_bmbt_rec_t *base, /* base of extent list */
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xfs_extnum_t lastx, /* last extent index used */
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xfs_extnum_t nextents, /* number of file extents */
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xfs_fileoff_t bno, /* block number searched for */
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int *eofp, /* out: end of file found */
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xfs_extnum_t *lastxp, /* out: last extent index */
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xfs_bmbt_irec_t *gotp, /* out: extent entry found */
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xfs_bmbt_irec_t *prevp) /* out: previous extent entry found */
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{
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xfs_bmbt_rec_t *ep; /* extent list entry pointer */
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xfs_bmbt_irec_t got; /* extent list entry, decoded */
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int high; /* high index of binary search */
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int low; /* low index of binary search */
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/*
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* Initialize the extent entry structure to catch access to
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* uninitialized br_startblock field.
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*/
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got.br_startoff = 0xffa5a5a5a5a5a5a5LL;
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got.br_blockcount = 0xa55a5a5a5a5a5a5aLL;
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got.br_state = XFS_EXT_INVALID;
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#if XFS_BIG_BLKNOS
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got.br_startblock = 0xffffa5a5a5a5a5a5LL;
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#else
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got.br_startblock = 0xffffa5a5;
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#endif
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if (lastx != NULLEXTNUM && lastx < nextents)
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ep = base + lastx;
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else
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ep = NULL;
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prevp->br_startoff = NULLFILEOFF;
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if (ep && bno >= (got.br_startoff = xfs_bmbt_get_startoff(ep)) &&
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bno < got.br_startoff +
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(got.br_blockcount = xfs_bmbt_get_blockcount(ep)))
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*eofp = 0;
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else if (ep && lastx < nextents - 1 &&
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bno >= (got.br_startoff = xfs_bmbt_get_startoff(ep + 1)) &&
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bno < got.br_startoff +
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(got.br_blockcount = xfs_bmbt_get_blockcount(ep + 1))) {
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lastx++;
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ep++;
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*eofp = 0;
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} else if (nextents == 0)
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*eofp = 1;
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else if (bno == 0 &&
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(got.br_startoff = xfs_bmbt_get_startoff(base)) == 0) {
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ep = base;
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lastx = 0;
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got.br_blockcount = xfs_bmbt_get_blockcount(ep);
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*eofp = 0;
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} else {
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low = 0;
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high = nextents - 1;
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/* binary search the extents array */
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while (low <= high) {
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XFS_STATS_INC(xs_cmp_exlist);
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lastx = (low + high) >> 1;
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ep = base + lastx;
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got.br_startoff = xfs_bmbt_get_startoff(ep);
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got.br_blockcount = xfs_bmbt_get_blockcount(ep);
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if (bno < got.br_startoff)
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high = lastx - 1;
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else if (bno >= got.br_startoff + got.br_blockcount)
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low = lastx + 1;
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else {
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got.br_startblock = xfs_bmbt_get_startblock(ep);
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got.br_state = xfs_bmbt_get_state(ep);
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*eofp = 0;
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*lastxp = lastx;
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*gotp = got;
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return ep;
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}
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}
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if (bno >= got.br_startoff + got.br_blockcount) {
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lastx++;
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if (lastx == nextents) {
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*eofp = 1;
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got.br_startblock = xfs_bmbt_get_startblock(ep);
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got.br_state = xfs_bmbt_get_state(ep);
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*prevp = got;
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ep = NULL;
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} else {
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*eofp = 0;
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xfs_bmbt_get_all(ep, prevp);
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ep++;
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got.br_startoff = xfs_bmbt_get_startoff(ep);
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got.br_blockcount = xfs_bmbt_get_blockcount(ep);
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}
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} else {
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*eofp = 0;
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if (ep > base)
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xfs_bmbt_get_all(ep - 1, prevp);
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}
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}
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if (ep) {
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got.br_startblock = xfs_bmbt_get_startblock(ep);
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got.br_state = xfs_bmbt_get_state(ep);
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}
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*lastxp = lastx;
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*gotp = got;
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return ep;
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}
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/*
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* Search the extent records for the entry containing block bno.
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* If bno lies in a hole, point to the next entry. If bno lies
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@ -362,14 +362,6 @@ xfs_bmbt_rec_t *
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xfs_bmap_search_multi_extents(struct xfs_ifork *, xfs_fileoff_t, int *,
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xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);
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/*
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* Search an extent list for the extent which includes block
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* bno.
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*/
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xfs_bmbt_rec_t *xfs_bmap_do_search_extents(xfs_bmbt_rec_t *,
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xfs_extnum_t, xfs_extnum_t, xfs_fileoff_t, int *,
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xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);
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#endif /* __KERNEL__ */
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#endif /* __XFS_BMAP_H__ */
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