| @@ -1,14 +1,14 @@ | | | @@ -1,14 +1,14 @@ |
1 | /* $NetBSD: lfs_inode.c,v 1.146 2015/09/01 06:08:37 dholland Exp $ */ | | 1 | /* $NetBSD: lfs_inode.c,v 1.147 2015/09/01 06:13:09 dholland Exp $ */ |
2 | | | 2 | |
3 | /*- | | 3 | /*- |
4 | * Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc. | | 4 | * Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc. |
5 | * All rights reserved. | | 5 | * All rights reserved. |
6 | * | | 6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation | | 7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Konrad E. Schroder <perseant@hhhh.org>. | | 8 | * by Konrad E. Schroder <perseant@hhhh.org>. |
9 | * | | 9 | * |
10 | * Redistribution and use in source and binary forms, with or without | | 10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions | | 11 | * modification, are permitted provided that the following conditions |
12 | * are met: | | 12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright | | 13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. | | 14 | * notice, this list of conditions and the following disclaimer. |
| @@ -50,27 +50,27 @@ | | | @@ -50,27 +50,27 @@ |
50 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | | 50 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
51 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | | 51 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
52 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | | 52 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
53 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | | 53 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
54 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | | 54 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
55 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | | 55 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
56 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | | 56 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
57 | * SUCH DAMAGE. | | 57 | * SUCH DAMAGE. |
58 | * | | 58 | * |
59 | * @(#)lfs_inode.c 8.9 (Berkeley) 5/8/95 | | 59 | * @(#)lfs_inode.c 8.9 (Berkeley) 5/8/95 |
60 | */ | | 60 | */ |
61 | | | 61 | |
62 | #include <sys/cdefs.h> | | 62 | #include <sys/cdefs.h> |
63 | __KERNEL_RCSID(0, "$NetBSD: lfs_inode.c,v 1.146 2015/09/01 06:08:37 dholland Exp $"); | | 63 | __KERNEL_RCSID(0, "$NetBSD: lfs_inode.c,v 1.147 2015/09/01 06:13:09 dholland Exp $"); |
64 | | | 64 | |
65 | #if defined(_KERNEL_OPT) | | 65 | #if defined(_KERNEL_OPT) |
66 | #include "opt_quota.h" | | 66 | #include "opt_quota.h" |
67 | #endif | | 67 | #endif |
68 | | | 68 | |
69 | #include <sys/param.h> | | 69 | #include <sys/param.h> |
70 | #include <sys/systm.h> | | 70 | #include <sys/systm.h> |
71 | #include <sys/mount.h> | | 71 | #include <sys/mount.h> |
72 | #include <sys/malloc.h> | | 72 | #include <sys/malloc.h> |
73 | #include <sys/proc.h> | | 73 | #include <sys/proc.h> |
74 | #include <sys/file.h> | | 74 | #include <sys/file.h> |
75 | #include <sys/buf.h> | | 75 | #include <sys/buf.h> |
76 | #include <sys/vnode.h> | | 76 | #include <sys/vnode.h> |
| @@ -716,30 +716,30 @@ lfs_finalize_fs_seguse(struct lfs *fs) | | | @@ -716,30 +716,30 @@ lfs_finalize_fs_seguse(struct lfs *fs) |
716 | * and recursive calls to indirtrunc must be used to cleanse other indirect | | 716 | * and recursive calls to indirtrunc must be used to cleanse other indirect |
717 | * blocks. | | 717 | * blocks. |
718 | * | | 718 | * |
719 | * NB: triple indirect blocks are untested. | | 719 | * NB: triple indirect blocks are untested. |
720 | */ | | 720 | */ |
721 | static int | | 721 | static int |
722 | lfs_indirtrunc(struct inode *ip, daddr_t lbn, daddr_t dbn, | | 722 | lfs_indirtrunc(struct inode *ip, daddr_t lbn, daddr_t dbn, |
723 | daddr_t lastbn, int level, daddr_t *countp, | | 723 | daddr_t lastbn, int level, daddr_t *countp, |
724 | daddr_t *rcountp, long *lastsegp, size_t *bcp) | | 724 | daddr_t *rcountp, long *lastsegp, size_t *bcp) |
725 | { | | 725 | { |
726 | int i; | | 726 | int i; |
727 | struct buf *bp; | | 727 | struct buf *bp; |
728 | struct lfs *fs = ip->i_lfs; | | 728 | struct lfs *fs = ip->i_lfs; |
729 | int32_t *bap; /* XXX ondisk32 */ | | 729 | void *bap; |
| | | 730 | bool bap_needs_free; |
730 | struct vnode *vp; | | 731 | struct vnode *vp; |
731 | daddr_t nb, nlbn, last; | | 732 | daddr_t nb, nlbn, last; |
732 | int32_t *copy = NULL; /* XXX ondisk32 */ | | | |
733 | daddr_t blkcount, rblkcount, factor; | | 733 | daddr_t blkcount, rblkcount, factor; |
734 | int nblocks; | | 734 | int nblocks; |
735 | daddr_t blocksreleased = 0, real_released = 0; | | 735 | daddr_t blocksreleased = 0, real_released = 0; |
736 | int error = 0, allerror = 0; | | 736 | int error = 0, allerror = 0; |
737 | | | 737 | |
738 | ASSERT_SEGLOCK(fs); | | 738 | ASSERT_SEGLOCK(fs); |
739 | /* | | 739 | /* |
740 | * Calculate index in current block of last | | 740 | * Calculate index in current block of last |
741 | * block to be kept. -1 indicates the entire | | 741 | * block to be kept. -1 indicates the entire |
742 | * block so we need not calculate the index. | | 742 | * block so we need not calculate the index. |
743 | */ | | 743 | */ |
744 | factor = 1; | | 744 | factor = 1; |
745 | for (i = SINGLE; i < level; i++) | | 745 | for (i = SINGLE; i < level; i++) |
| @@ -767,82 +767,90 @@ lfs_indirtrunc(struct inode *ip, daddr_t | | | @@ -767,82 +767,90 @@ lfs_indirtrunc(struct inode *ip, daddr_t |
767 | bp->b_flags |= B_READ; | | 767 | bp->b_flags |= B_READ; |
768 | if (bp->b_bcount > bp->b_bufsize) | | 768 | if (bp->b_bcount > bp->b_bufsize) |
769 | panic("lfs_indirtrunc: bad buffer size"); | | 769 | panic("lfs_indirtrunc: bad buffer size"); |
770 | bp->b_blkno = LFS_FSBTODB(fs, dbn); | | 770 | bp->b_blkno = LFS_FSBTODB(fs, dbn); |
771 | VOP_STRATEGY(vp, bp); | | 771 | VOP_STRATEGY(vp, bp); |
772 | error = biowait(bp); | | 772 | error = biowait(bp); |
773 | } | | 773 | } |
774 | if (error) { | | 774 | if (error) { |
775 | brelse(bp, 0); | | 775 | brelse(bp, 0); |
776 | *countp = *rcountp = 0; | | 776 | *countp = *rcountp = 0; |
777 | return (error); | | 777 | return (error); |
778 | } | | 778 | } |
779 | | | 779 | |
780 | bap = (int32_t *)bp->b_data; /* XXX ondisk32 */ | | | |
781 | if (lastbn >= 0) { | | 780 | if (lastbn >= 0) { |
782 | copy = lfs_malloc(fs, lfs_sb_getbsize(fs), LFS_NB_IBLOCK); | | 781 | /* |
783 | memcpy((void *)copy, (void *)bap, lfs_sb_getbsize(fs)); | | 782 | * We still need this block, so copy the data for |
784 | memset((void *)&bap[last + 1], 0, | | 783 | * subsequent processing; then in the original block, |
785 | /* XXX ondisk32 */ | | 784 | * zero out the dying block pointers and send it off. |
786 | (u_int)(LFS_NINDIR(fs) - (last + 1)) * sizeof (int32_t)); | | 785 | */ |
| | | 786 | bap = lfs_malloc(fs, lfs_sb_getbsize(fs), LFS_NB_IBLOCK); |
| | | 787 | memcpy(bap, bp->b_data, lfs_sb_getbsize(fs)); |
| | | 788 | bap_needs_free = true; |
| | | 789 | |
| | | 790 | for (i = last + 1; i < LFS_NINDIR(fs); i++) { |
| | | 791 | lfs_iblock_set(fs, bp->b_data, i, 0); |
| | | 792 | } |
787 | error = VOP_BWRITE(bp->b_vp, bp); | | 793 | error = VOP_BWRITE(bp->b_vp, bp); |
788 | if (error) | | 794 | if (error) |
789 | allerror = error; | | 795 | allerror = error; |
790 | bap = copy; | | 796 | } else { |
| | | 797 | bap = bp->b_data; |
| | | 798 | bap_needs_free = false; |
791 | } | | 799 | } |
792 | | | 800 | |
793 | /* | | 801 | /* |
794 | * Recursively free totally unused blocks. | | 802 | * Recursively free totally unused blocks. |
795 | */ | | 803 | */ |
796 | for (i = LFS_NINDIR(fs) - 1, nlbn = lbn + 1 - i * factor; i > last; | | 804 | for (i = LFS_NINDIR(fs) - 1, nlbn = lbn + 1 - i * factor; i > last; |
797 | i--, nlbn += factor) { | | 805 | i--, nlbn += factor) { |
798 | nb = bap[i]; | | 806 | nb = lfs_iblock_get(fs, bap, i); |
799 | if (nb == 0) | | 807 | if (nb == 0) |
800 | continue; | | 808 | continue; |
801 | if (level > SINGLE) { | | 809 | if (level > SINGLE) { |
802 | error = lfs_indirtrunc(ip, nlbn, nb, | | 810 | error = lfs_indirtrunc(ip, nlbn, nb, |
803 | (daddr_t)-1, level - 1, | | 811 | (daddr_t)-1, level - 1, |
804 | &blkcount, &rblkcount, | | 812 | &blkcount, &rblkcount, |
805 | lastsegp, bcp); | | 813 | lastsegp, bcp); |
806 | if (error) | | 814 | if (error) |
807 | allerror = error; | | 815 | allerror = error; |
808 | blocksreleased += blkcount; | | 816 | blocksreleased += blkcount; |
809 | real_released += rblkcount; | | 817 | real_released += rblkcount; |
810 | } | | 818 | } |
811 | lfs_blkfree(fs, ip, nb, lfs_sb_getbsize(fs), lastsegp, bcp); | | 819 | lfs_blkfree(fs, ip, nb, lfs_sb_getbsize(fs), lastsegp, bcp); |
812 | if (bap[i] > 0) | | 820 | if (lfs_iblock_get(fs, bap, i) > 0) |
813 | real_released += nblocks; | | 821 | real_released += nblocks; |
814 | blocksreleased += nblocks; | | 822 | blocksreleased += nblocks; |
815 | } | | 823 | } |
816 | | | 824 | |
817 | /* | | 825 | /* |
818 | * Recursively free last partial block. | | 826 | * Recursively free last partial block. |
819 | */ | | 827 | */ |
820 | if (level > SINGLE && lastbn >= 0) { | | 828 | if (level > SINGLE && lastbn >= 0) { |
821 | last = lastbn % factor; | | 829 | last = lastbn % factor; |
822 | nb = bap[i]; | | 830 | nb = lfs_iblock_get(fs, bap, i); |
823 | if (nb != 0) { | | 831 | if (nb != 0) { |
824 | error = lfs_indirtrunc(ip, nlbn, nb, | | 832 | error = lfs_indirtrunc(ip, nlbn, nb, |
825 | last, level - 1, &blkcount, | | 833 | last, level - 1, &blkcount, |
826 | &rblkcount, lastsegp, bcp); | | 834 | &rblkcount, lastsegp, bcp); |
827 | if (error) | | 835 | if (error) |
828 | allerror = error; | | 836 | allerror = error; |
829 | real_released += rblkcount; | | 837 | real_released += rblkcount; |
830 | blocksreleased += blkcount; | | 838 | blocksreleased += blkcount; |
831 | } | | 839 | } |
832 | } | | 840 | } |
833 | | | 841 | |
834 | if (copy != NULL) { | | 842 | if (bap_needs_free) { |
835 | lfs_free(fs, copy, LFS_NB_IBLOCK); | | 843 | lfs_free(fs, bap, LFS_NB_IBLOCK); |
836 | } else { | | 844 | } else { |
837 | mutex_enter(&bufcache_lock); | | 845 | mutex_enter(&bufcache_lock); |
838 | if (bp->b_oflags & BO_DELWRI) { | | 846 | if (bp->b_oflags & BO_DELWRI) { |
839 | LFS_UNLOCK_BUF(bp); | | 847 | LFS_UNLOCK_BUF(bp); |
840 | lfs_sb_addavail(fs, lfs_btofsb(fs, bp->b_bcount)); | | 848 | lfs_sb_addavail(fs, lfs_btofsb(fs, bp->b_bcount)); |
841 | wakeup(&fs->lfs_availsleep); | | 849 | wakeup(&fs->lfs_availsleep); |
842 | } | | 850 | } |
843 | brelsel(bp, BC_INVAL); | | 851 | brelsel(bp, BC_INVAL); |
844 | mutex_exit(&bufcache_lock); | | 852 | mutex_exit(&bufcache_lock); |
845 | } | | 853 | } |
846 | | | 854 | |
847 | *countp = blocksreleased; | | 855 | *countp = blocksreleased; |
848 | *rcountp = real_released; | | 856 | *rcountp = real_released; |