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-rw-r--r--fs/xfs/xfs_bmap.c107
-rw-r--r--fs/xfs/xfs_bmap.h8
2 files changed, 0 insertions, 115 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 2d702e4a74a3..d384e489705f 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -3467,113 +3467,6 @@ done:
3467 return error; 3467 return error;
3468} 3468}
3469 3469
3470xfs_bmbt_rec_t * /* pointer to found extent entry */
3471xfs_bmap_do_search_extents(
3472 xfs_bmbt_rec_t *base, /* base of extent list */
3473 xfs_extnum_t lastx, /* last extent index used */
3474 xfs_extnum_t nextents, /* number of file extents */
3475 xfs_fileoff_t bno, /* block number searched for */
3476 int *eofp, /* out: end of file found */
3477 xfs_extnum_t *lastxp, /* out: last extent index */
3478 xfs_bmbt_irec_t *gotp, /* out: extent entry found */
3479 xfs_bmbt_irec_t *prevp) /* out: previous extent entry found */
3480{
3481 xfs_bmbt_rec_t *ep; /* extent list entry pointer */
3482 xfs_bmbt_irec_t got; /* extent list entry, decoded */
3483 int high; /* high index of binary search */
3484 int low; /* low index of binary search */
3485
3486 /*
3487 * Initialize the extent entry structure to catch access to
3488 * uninitialized br_startblock field.
3489 */
3490 got.br_startoff = 0xffa5a5a5a5a5a5a5LL;
3491 got.br_blockcount = 0xa55a5a5a5a5a5a5aLL;
3492 got.br_state = XFS_EXT_INVALID;
3493
3494#if XFS_BIG_BLKNOS
3495 got.br_startblock = 0xffffa5a5a5a5a5a5LL;
3496#else
3497 got.br_startblock = 0xffffa5a5;
3498#endif
3499
3500 if (lastx != NULLEXTNUM && lastx < nextents)
3501 ep = base + lastx;
3502 else
3503 ep = NULL;
3504 prevp->br_startoff = NULLFILEOFF;
3505 if (ep && bno >= (got.br_startoff = xfs_bmbt_get_startoff(ep)) &&
3506 bno < got.br_startoff +
3507 (got.br_blockcount = xfs_bmbt_get_blockcount(ep)))
3508 *eofp = 0;
3509 else if (ep && lastx < nextents - 1 &&
3510 bno >= (got.br_startoff = xfs_bmbt_get_startoff(ep + 1)) &&
3511 bno < got.br_startoff +
3512 (got.br_blockcount = xfs_bmbt_get_blockcount(ep + 1))) {
3513 lastx++;
3514 ep++;
3515 *eofp = 0;
3516 } else if (nextents == 0)
3517 *eofp = 1;
3518 else if (bno == 0 &&
3519 (got.br_startoff = xfs_bmbt_get_startoff(base)) == 0) {
3520 ep = base;
3521 lastx = 0;
3522 got.br_blockcount = xfs_bmbt_get_blockcount(ep);
3523 *eofp = 0;
3524 } else {
3525 low = 0;
3526 high = nextents - 1;
3527 /* binary search the extents array */
3528 while (low <= high) {
3529 XFS_STATS_INC(xs_cmp_exlist);
3530 lastx = (low + high) >> 1;
3531 ep = base + lastx;
3532 got.br_startoff = xfs_bmbt_get_startoff(ep);
3533 got.br_blockcount = xfs_bmbt_get_blockcount(ep);
3534 if (bno < got.br_startoff)
3535 high = lastx - 1;
3536 else if (bno >= got.br_startoff + got.br_blockcount)
3537 low = lastx + 1;
3538 else {
3539 got.br_startblock = xfs_bmbt_get_startblock(ep);
3540 got.br_state = xfs_bmbt_get_state(ep);
3541 *eofp = 0;
3542 *lastxp = lastx;
3543 *gotp = got;
3544 return ep;
3545 }
3546 }
3547 if (bno >= got.br_startoff + got.br_blockcount) {
3548 lastx++;
3549 if (lastx == nextents) {
3550 *eofp = 1;
3551 got.br_startblock = xfs_bmbt_get_startblock(ep);
3552 got.br_state = xfs_bmbt_get_state(ep);
3553 *prevp = got;
3554 ep = NULL;
3555 } else {
3556 *eofp = 0;
3557 xfs_bmbt_get_all(ep, prevp);
3558 ep++;
3559 got.br_startoff = xfs_bmbt_get_startoff(ep);
3560 got.br_blockcount = xfs_bmbt_get_blockcount(ep);
3561 }
3562 } else {
3563 *eofp = 0;
3564 if (ep > base)
3565 xfs_bmbt_get_all(ep - 1, prevp);
3566 }
3567 }
3568 if (ep) {
3569 got.br_startblock = xfs_bmbt_get_startblock(ep);
3570 got.br_state = xfs_bmbt_get_state(ep);
3571 }
3572 *lastxp = lastx;
3573 *gotp = got;
3574 return ep;
3575}
3576
3577/* 3470/*
3578 * Search the extent records for the entry containing block bno. 3471 * Search the extent records for the entry containing block bno.
3579 * If bno lies in a hole, point to the next entry. If bno lies 3472 * If bno lies in a hole, point to the next entry. If bno lies
diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h
index 011ccaa9a1c0..f83399c89ce3 100644
--- a/fs/xfs/xfs_bmap.h
+++ b/fs/xfs/xfs_bmap.h
@@ -362,14 +362,6 @@ xfs_bmbt_rec_t *
362xfs_bmap_search_multi_extents(struct xfs_ifork *, xfs_fileoff_t, int *, 362xfs_bmap_search_multi_extents(struct xfs_ifork *, xfs_fileoff_t, int *,
363 xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *); 363 xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);
364 364
365/*
366 * Search an extent list for the extent which includes block
367 * bno.
368 */
369xfs_bmbt_rec_t *xfs_bmap_do_search_extents(xfs_bmbt_rec_t *,
370 xfs_extnum_t, xfs_extnum_t, xfs_fileoff_t, int *,
371 xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);
372
373#endif /* __KERNEL__ */ 365#endif /* __KERNEL__ */
374 366
375#endif /* __XFS_BMAP_H__ */ 367#endif /* __XFS_BMAP_H__ */