From a78d10f45b23149f1b23019a4f4fb57dcf852e39 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" <djwong@kernel.org> Date: Thu, 22 Feb 2024 12:32:09 -0800 Subject: [PATCH] xfs: report btree block corruption errors to the health system Whenever we encounter corrupt btree blocks, we should report that to the health monitoring system for later reporting. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> --- fs/xfs/libxfs/xfs_alloc.c | 2 ++ fs/xfs/libxfs/xfs_bmap.c | 6 ++++++ fs/xfs/libxfs/xfs_btree.c | 25 +++++++++++++++++++++--- fs/xfs/libxfs/xfs_health.h | 2 ++ fs/xfs/libxfs/xfs_ialloc.c | 1 + fs/xfs/libxfs/xfs_refcount.c | 6 +++++- fs/xfs/libxfs/xfs_rmap.c | 6 +++++- fs/xfs/xfs_health.c | 38 ++++++++++++++++++++++++++++++++++++ 8 files changed, 81 insertions(+), 5 deletions(-) diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index 1cb2569c43cf..2464b64b1cb4 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -275,6 +275,7 @@ xfs_alloc_complain_bad_rec( xfs_warn(mp, "start block 0x%x block count 0x%x", irec->ar_startblock, irec->ar_blockcount); + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; } @@ -2702,6 +2703,7 @@ xfs_exact_minlen_extent_available( goto out; if (*stat == 0) { + xfs_btree_mark_sick(cnt_cur); error = -EFSCORRUPTED; goto out; } diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 7e632f13af07..78d2d3393a86 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -368,6 +368,8 @@ xfs_bmap_check_leaf_extents( error = xfs_btree_read_bufl(mp, NULL, bno, &bp, XFS_BMAP_BTREE_REF, &xfs_bmbt_buf_ops); + if (xfs_metadata_is_sick(error)) + xfs_btree_mark_sick(cur); if (error) goto error_norelse; } @@ -454,6 +456,8 @@ xfs_bmap_check_leaf_extents( error = xfs_btree_read_bufl(mp, NULL, bno, &bp, XFS_BMAP_BTREE_REF, &xfs_bmbt_buf_ops); + if (xfs_metadata_is_sick(error)) + xfs_btree_mark_sick(cur); if (error) goto error_norelse; } @@ -568,6 +572,8 @@ xfs_bmap_btree_to_extents( #endif error = xfs_btree_read_bufl(mp, tp, cbno, &cbp, XFS_BMAP_BTREE_REF, &xfs_bmbt_buf_ops); + if (xfs_metadata_is_sick(error)) + xfs_btree_mark_sick(cur); if (error) return error; cblock = XFS_BUF_TO_BLOCK(cbp); diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index 1adfc35c99c9..a4784e56b589 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -27,6 +27,7 @@ #include "xfs_bmap_btree.h" #include "xfs_rmap_btree.h" #include "xfs_refcount_btree.h" +#include "xfs_health.h" /* * Btree magic numbers. @@ -177,6 +178,7 @@ xfs_btree_check_lblock( XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BTREE_CHECK_LBLOCK)) { if (bp) trace_xfs_btree_corrupt(bp, _RET_IP_); + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; } return 0; @@ -243,6 +245,7 @@ xfs_btree_check_sblock( XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BTREE_CHECK_SBLOCK)) { if (bp) trace_xfs_btree_corrupt(bp, _RET_IP_); + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; } return 0; @@ -318,6 +321,7 @@ xfs_btree_check_ptr( level, index); } + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; } @@ -498,6 +502,8 @@ xfs_btree_dup_cursor( xfs_buf_daddr(bp), mp->m_bsize, 0, &bp, cur->bc_ops->buf_ops); + if (xfs_metadata_is_sick(error)) + xfs_btree_mark_sick(new); if (error) { xfs_btree_del_cursor(new, error); *ncur = NULL; @@ -1351,6 +1357,8 @@ xfs_btree_read_buf_block( error = xfs_trans_read_buf(mp, cur->bc_tp, mp->m_ddev_targp, d, mp->m_bsize, flags, bpp, cur->bc_ops->buf_ops); + if (xfs_metadata_is_sick(error)) + xfs_btree_mark_sick(cur); if (error) return error; @@ -1661,6 +1669,7 @@ xfs_btree_increment( if (cur->bc_flags & XFS_BTREE_ROOT_IN_INODE) goto out0; ASSERT(0); + xfs_btree_mark_sick(cur); error = -EFSCORRUPTED; goto error0; } @@ -1754,6 +1763,7 @@ xfs_btree_decrement( if (cur->bc_flags & XFS_BTREE_ROOT_IN_INODE) goto out0; ASSERT(0); + xfs_btree_mark_sick(cur); error = -EFSCORRUPTED; goto error0; } @@ -1846,6 +1856,7 @@ out_bad: *blkp = NULL; xfs_buf_mark_corrupt(bp); xfs_trans_brelse(cur->bc_tp, bp); + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; } @@ -1892,8 +1903,10 @@ xfs_btree_lookup( XFS_BTREE_STATS_INC(cur, lookup); /* No such thing as a zero-level tree. */ - if (XFS_IS_CORRUPT(cur->bc_mp, cur->bc_nlevels == 0)) + if (XFS_IS_CORRUPT(cur->bc_mp, cur->bc_nlevels == 0)) { + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; + } block = NULL; keyno = 0; @@ -1936,6 +1949,7 @@ xfs_btree_lookup( XFS_ERRLEVEL_LOW, cur->bc_mp, block, sizeof(*block)); + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; } @@ -4369,12 +4383,16 @@ xfs_btree_visit_block( */ if (cur->bc_flags & XFS_BTREE_LONG_PTRS) { if (be64_to_cpu(rptr.l) == XFS_DADDR_TO_FSB(cur->bc_mp, - xfs_buf_daddr(bp))) + xfs_buf_daddr(bp))) { + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; + } } else { if (be32_to_cpu(rptr.s) == xfs_daddr_to_agbno(cur->bc_mp, - xfs_buf_daddr(bp))) + xfs_buf_daddr(bp))) { + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; + } } return xfs_btree_lookup_get_block(cur, level, &rptr, &block); } @@ -5233,6 +5251,7 @@ xfs_btree_goto_left_edge( return error; if (stat != 0) { ASSERT(0); + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; } diff --git a/fs/xfs/libxfs/xfs_health.h b/fs/xfs/libxfs/xfs_health.h index 3c8fd060744f..8f566a78737f 100644 --- a/fs/xfs/libxfs/xfs_health.h +++ b/fs/xfs/libxfs/xfs_health.h @@ -37,6 +37,7 @@ struct xfs_mount; struct xfs_perag; struct xfs_inode; struct xfs_fsop_geom; +struct xfs_btree_cur; /* Observable health issues for metadata spanning the entire filesystem. */ #define XFS_SICK_FS_COUNTERS (1 << 0) /* summary counters */ @@ -160,6 +161,7 @@ void xfs_inode_measure_sickness(struct xfs_inode *ip, unsigned int *sick, void xfs_health_unmount(struct xfs_mount *mp); void xfs_bmap_mark_sick(struct xfs_inode *ip, int whichfork); +void xfs_btree_mark_sick(struct xfs_btree_cur *cur); /* Now some helpers. */ diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c index 2531b4c08915..91584e96f05f 100644 --- a/fs/xfs/libxfs/xfs_ialloc.c +++ b/fs/xfs/libxfs/xfs_ialloc.c @@ -148,6 +148,7 @@ xfs_inobt_complain_bad_rec( "start inode 0x%x, count 0x%x, free 0x%x freemask 0x%llx, holemask 0x%x", irec->ir_startino, irec->ir_count, irec->ir_freecount, irec->ir_free, irec->ir_holemask); + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; } diff --git a/fs/xfs/libxfs/xfs_refcount.c b/fs/xfs/libxfs/xfs_refcount.c index 7df52daa22cf..c7fda1a4950a 100644 --- a/fs/xfs/libxfs/xfs_refcount.c +++ b/fs/xfs/libxfs/xfs_refcount.c @@ -23,6 +23,7 @@ #include "xfs_refcount.h" #include "xfs_rmap.h" #include "xfs_ag.h" +#include "xfs_health.h" struct kmem_cache *xfs_refcount_intent_cache; @@ -156,6 +157,7 @@ xfs_refcount_complain_bad_rec( xfs_warn(mp, "Start block 0x%x, block count 0x%x, references 0x%x", irec->rc_startblock, irec->rc_blockcount, irec->rc_refcount); + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; } @@ -1889,8 +1891,10 @@ xfs_refcount_recover_extent( struct xfs_refcount_recovery *rr; if (XFS_IS_CORRUPT(cur->bc_mp, - be32_to_cpu(rec->refc.rc_refcount) != 1)) + be32_to_cpu(rec->refc.rc_refcount) != 1)) { + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; + } rr = kmalloc(sizeof(struct xfs_refcount_recovery), GFP_KERNEL | __GFP_NOFAIL); diff --git a/fs/xfs/libxfs/xfs_rmap.c b/fs/xfs/libxfs/xfs_rmap.c index 0bd1f47b2c2b..8c4d30a0febb 100644 --- a/fs/xfs/libxfs/xfs_rmap.c +++ b/fs/xfs/libxfs/xfs_rmap.c @@ -23,6 +23,7 @@ #include "xfs_error.h" #include "xfs_inode.h" #include "xfs_ag.h" +#include "xfs_health.h" struct kmem_cache *xfs_rmap_intent_cache; @@ -56,8 +57,10 @@ xfs_rmap_lookup_le( error = xfs_rmap_get_rec(cur, irec, &get_stat); if (error) return error; - if (!get_stat) + if (!get_stat) { + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; + } return 0; } @@ -277,6 +280,7 @@ xfs_rmap_complain_bad_rec( "Owner 0x%llx, flags 0x%x, start block 0x%x block count 0x%x", irec->rm_owner, irec->rm_flags, irec->rm_startblock, irec->rm_blockcount); + xfs_btree_mark_sick(cur); return -EFSCORRUPTED; } diff --git a/fs/xfs/xfs_health.c b/fs/xfs/xfs_health.c index 349360a708b4..e9338c05ea23 100644 --- a/fs/xfs/xfs_health.c +++ b/fs/xfs/xfs_health.c @@ -14,6 +14,7 @@ #include "xfs_trace.h" #include "xfs_health.h" #include "xfs_ag.h" +#include "xfs_btree.h" /* * Warn about metadata corruption that we detected but haven't fixed, and @@ -507,3 +508,40 @@ xfs_bmap_mark_sick( xfs_inode_mark_sick(ip, mask); } + +/* Record observations of btree corruption with the health tracking system. */ +void +xfs_btree_mark_sick( + struct xfs_btree_cur *cur) +{ + unsigned int mask; + + switch (cur->bc_btnum) { + case XFS_BTNUM_BMAP: + xfs_bmap_mark_sick(cur->bc_ino.ip, cur->bc_ino.whichfork); + return; + case XFS_BTNUM_BNO: + mask = XFS_SICK_AG_BNOBT; + break; + case XFS_BTNUM_CNT: + mask = XFS_SICK_AG_CNTBT; + break; + case XFS_BTNUM_INO: + mask = XFS_SICK_AG_INOBT; + break; + case XFS_BTNUM_FINO: + mask = XFS_SICK_AG_FINOBT; + break; + case XFS_BTNUM_RMAP: + mask = XFS_SICK_AG_RMAPBT; + break; + case XFS_BTNUM_REFC: + mask = XFS_SICK_AG_REFCNTBT; + break; + default: + ASSERT(0); + return; + } + + xfs_ag_mark_sick(cur->bc_ag.pag, mask); +}