[03/10] xfs: report block map corruption errors to the health tracking system

Commit Message

Darrick J. Wong Nov. 8, 2019, 7:05 a.m. UTC

From: Darrick J. Wong <[e-mail]>

Whenever we encounter a corrupt block mapping, we should report that to
the health monitoring system for later reporting.

Signed-off-by: Darrick J. Wong <[e-mail]>
---
 fs/xfs/libxfs/xfs_bmap.c   |   39 +++++++++++++++++++++++++++++++++------
 fs/xfs/libxfs/xfs_health.h |    1 +
 fs/xfs/xfs_health.c        |   26 ++++++++++++++++++++++++++
 fs/xfs/xfs_iomap.c         |   15 +++++++++++----
 4 files changed, 71 insertions(+), 10 deletions(-)

Patch

diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index f11f4d25c56b..b309b7c4d92f 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -35,7 +35,7 @@ 
 #include "xfs_refcount.h"
 #include "xfs_icache.h"
 #include "xfs_iomap.h"
-
+#include "xfs_health.h"
 
 kmem_zone_t		*xfs_bmap_free_item_zone;
 
@@ -732,6 +732,7 @@  xfs_bmap_extents_to_btree(
 	xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_BCOUNT, 1L);
 	abp = xfs_btree_get_bufl(mp, tp, args.fsbno);
 	if (XFS_IS_CORRUPT(mp, !abp)) {
+		xfs_bmap_mark_sick(ip, whichfork);
 		error = -EFSCORRUPTED;
 		goto out_unreserve_dquot;
 	}
@@ -1021,6 +1022,7 @@  xfs_bmap_add_attrfork_local(
 
 	/* should only be called for types that support local format data */
 	ASSERT(0);
+	xfs_bmap_mark_sick(ip, XFS_ATTR_FORK);
 	return -EFSCORRUPTED;
 }
 
@@ -1090,6 +1092,7 @@  xfs_bmap_add_attrfork(
 	if (XFS_IFORK_Q(ip))
 		goto trans_cancel;
 	if (XFS_IS_CORRUPT(mp, ip->i_d.di_anextents != 0)) {
+		xfs_bmap_mark_sick(ip, XFS_ATTR_FORK);
 		error = -EFSCORRUPTED;
 		goto trans_cancel;
 	}
@@ -1192,6 +1195,7 @@  xfs_iread_bmbt_block(
 				(unsigned long long)ip->i_ino);
 		xfs_inode_verifier_error(ip, -EFSCORRUPTED, __func__, block,
 				sizeof(*block), __this_address);
+		xfs_bmap_mark_sick(ip, whichfork);
 		return -EFSCORRUPTED;
 	}
 
@@ -1207,6 +1211,7 @@  xfs_iread_bmbt_block(
 			xfs_inode_verifier_error(ip, -EFSCORRUPTED,
 					"xfs_iread_extents(2)", frp,
 					sizeof(*frp), fa);
+			xfs_bmap_mark_sick(ip, whichfork);
 			return -EFSCORRUPTED;
 		}
 		xfs_iext_insert(ip, &ir->icur, &new,
@@ -1238,6 +1243,7 @@  xfs_iread_extents(
 
 	if (XFS_IS_CORRUPT(mp,
 	    XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) {
+		xfs_bmap_mark_sick(ip, whichfork);
 		error = -EFSCORRUPTED;
 		goto out;
 	}
@@ -1253,6 +1259,7 @@  xfs_iread_extents(
 
 	if (XFS_IS_CORRUPT(mp,
 	    ir.loaded != XFS_IFORK_NEXTENTS(ip, whichfork))) {
+		xfs_bmap_mark_sick(ip, whichfork);
 		error = -EFSCORRUPTED;
 		goto out;
 	}
@@ -1261,6 +1268,8 @@  xfs_iread_extents(
 	ifp->if_flags |= XFS_IFEXTENTS;
 	return 0;
 out:
+	if (xfs_metadata_is_sick(error))
+		xfs_bmap_mark_sick(ip, whichfork);
 	xfs_iext_destroy(ifp);
 	return error;
 }
@@ -1343,6 +1352,7 @@  xfs_bmap_last_before(
 		break;
 	default:
 		ASSERT(0);
+		xfs_bmap_mark_sick(ip, whichfork);
 		return -EFSCORRUPTED;
 	}
 
@@ -1442,8 +1452,11 @@  xfs_bmap_last_offset(
 	if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL)
 		return 0;
 
-	if (XFS_IS_CORRUPT(ip->i_mount, !xfs_ifork_has_extents(ip, whichfork)))
+	if (XFS_IS_CORRUPT(ip->i_mount,
+	    !xfs_ifork_has_extents(ip, whichfork))) {
+		xfs_bmap_mark_sick(ip, whichfork);
 		return -EFSCORRUPTED;
+	}
 
 	error = xfs_bmap_last_extent(NULL, ip, whichfork, &rec, &is_empty);
 	if (error || is_empty)
@@ -3904,6 +3917,7 @@  xfs_bmapi_read(
 
 	if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(ip, whichfork)) ||
 	    XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BMAPIFORMAT)) {
+		xfs_bmap_mark_sick(ip, whichfork);
 		return -EFSCORRUPTED;
 	}
 
@@ -3934,6 +3948,7 @@  xfs_bmapi_read(
 		xfs_alert(mp, "%s: inode %llu missing fork %d",
 				__func__, ip->i_ino, whichfork);
 #endif /* DEBUG */
+		xfs_bmap_mark_sick(ip, whichfork);
 		return -EFSCORRUPTED;
 	}
 
@@ -4413,6 +4428,7 @@  xfs_bmapi_write(
 
 	if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(ip, whichfork)) ||
 	    XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BMAPIFORMAT)) {
+		xfs_bmap_mark_sick(ip, whichfork);
 		return -EFSCORRUPTED;
 	}
 
@@ -4620,9 +4636,11 @@  xfs_bmapi_convert_delalloc(
 	error = -ENOSPC;
 	if (WARN_ON_ONCE(bma.blkno == NULLFSBLOCK))
 		goto out_finish;
-	error = -EFSCORRUPTED;
-	if (WARN_ON_ONCE(!xfs_valid_startblock(ip, bma.got.br_startblock)))
+	if (WARN_ON_ONCE(!xfs_valid_startblock(ip, bma.got.br_startblock))) {
+		xfs_bmap_mark_sick(ip, whichfork);
+		error = -EFSCORRUPTED;
 		goto out_finish;
+	}
 
 	XFS_STATS_ADD(mp, xs_xstrat_bytes, XFS_FSB_TO_B(mp, bma.length));
 	XFS_STATS_INC(mp, xs_xstrat_quick);
@@ -4680,6 +4698,7 @@  xfs_bmapi_remap(
 
 	if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(ip, whichfork)) ||
 	    XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BMAPIFORMAT)) {
+		xfs_bmap_mark_sick(ip, whichfork);
 		return -EFSCORRUPTED;
 	}
 
@@ -5318,8 +5337,10 @@  __xfs_bunmapi(
 	whichfork = xfs_bmapi_whichfork(flags);
 	ASSERT(whichfork != XFS_COW_FORK);
 	ifp = XFS_IFORK_PTR(ip, whichfork);
-	if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(ip, whichfork)))
+	if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(ip, whichfork))) {
+		xfs_bmap_mark_sick(ip, whichfork);
 		return -EFSCORRUPTED;
+	}
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return -EIO;
 
@@ -5814,6 +5835,7 @@  xfs_bmap_collapse_extents(
 
 	if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(ip, whichfork)) ||
 	    XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BMAPIFORMAT)) {
+		xfs_bmap_mark_sick(ip, whichfork);
 		return -EFSCORRUPTED;
 	}
 
@@ -5931,6 +5953,7 @@  xfs_bmap_insert_extents(
 
 	if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(ip, whichfork)) ||
 	    XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BMAPIFORMAT)) {
+		xfs_bmap_mark_sick(ip, whichfork);
 		return -EFSCORRUPTED;
 	}
 
@@ -6037,6 +6060,7 @@  xfs_bmap_split_extent_at(
 
 	if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(ip, whichfork)) ||
 	    XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BMAPIFORMAT)) {
+		xfs_bmap_mark_sick(ip, whichfork);
 		return -EFSCORRUPTED;
 	}
 
@@ -6252,8 +6276,10 @@  xfs_bmap_finish_one(
 			XFS_FSB_TO_AGBNO(tp->t_mountp, startblock),
 			ip->i_ino, whichfork, startoff, *blockcount, state);
 
-	if (WARN_ON_ONCE(whichfork != XFS_DATA_FORK))
+	if (WARN_ON_ONCE(whichfork != XFS_DATA_FORK)) {
+		xfs_bmap_mark_sick(ip, whichfork);
 		return -EFSCORRUPTED;
+	}
 
 	if (XFS_TEST_ERROR(false, tp->t_mountp,
 			XFS_ERRTAG_BMAP_FINISH_ONE))
@@ -6271,6 +6297,7 @@  xfs_bmap_finish_one(
 		break;
 	default:
 		ASSERT(0);
+		xfs_bmap_mark_sick(ip, whichfork);
 		error = -EFSCORRUPTED;
 	}
 
diff --git a/fs/xfs/libxfs/xfs_health.h b/fs/xfs/libxfs/xfs_health.h
index ce8954a10c66..25b61180b562 100644
--- a/fs/xfs/libxfs/xfs_health.h
+++ b/fs/xfs/libxfs/xfs_health.h
@@ -138,6 +138,7 @@  void xfs_inode_measure_sickness(struct xfs_inode *ip, unsigned int *sick,
 		unsigned int *checked);
 
 void xfs_health_unmount(struct xfs_mount *mp);
+void xfs_bmap_mark_sick(struct xfs_inode *ip, int whichfork);
 
 /* Now some helpers. */
 
diff --git a/fs/xfs/xfs_health.c b/fs/xfs/xfs_health.c
index 36c32b108b39..5e5de5338476 100644
--- a/fs/xfs/xfs_health.c
+++ b/fs/xfs/xfs_health.c
@@ -452,3 +452,29 @@  xfs_bulkstat_health(
 			bs->bs_sick |= m->ioctl_mask;
 	}
 }
+
+/* Mark a block mapping sick. */
+void
+xfs_bmap_mark_sick(
+	struct xfs_inode	*ip,
+	int			whichfork)
+{
+	unsigned int		mask;
+
+	switch (whichfork) {
+	case XFS_DATA_FORK:
+		mask = XFS_SICK_INO_BMBTD;
+		break;
+	case XFS_ATTR_FORK:
+		mask = XFS_SICK_INO_BMBTA;
+		break;
+	case XFS_COW_FORK:
+		mask = XFS_SICK_INO_BMBTC;
+		break;
+	default:
+		ASSERT(0);
+		return;
+	}
+
+	xfs_inode_mark_sick(ip, mask);
+}
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index c5fa5d83021d..271638c68d11 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -27,7 +27,7 @@ 
 #include "xfs_dquot_item.h"
 #include "xfs_dquot.h"
 #include "xfs_reflink.h"
-
+#include "xfs_health.h"
 
 #define XFS_ALLOC_ALIGN(mp, off) \
 	(((off) >> mp->m_allocsize_log) << mp->m_allocsize_log)
@@ -59,8 +59,10 @@  xfs_bmbt_to_iomap(
 	struct xfs_mount	*mp = ip->i_mount;
 	struct xfs_buftarg	*target = xfs_inode_buftarg(ip);
 
-	if (unlikely(!xfs_valid_startblock(ip, imap->br_startblock)))
+	if (unlikely(!xfs_valid_startblock(ip, imap->br_startblock))) {
+		xfs_bmap_mark_sick(ip, XFS_DATA_FORK);
 		return xfs_alert_fsblock_zero(ip, imap);
+	}
 
 	if (imap->br_startblock == HOLESTARTBLOCK) {
 		iomap->addr = IOMAP_NULL_ADDR;
@@ -277,8 +279,10 @@  xfs_iomap_write_direct(
 		goto out_unlock;
 	}
 
-	if (unlikely(!xfs_valid_startblock(ip, imap->br_startblock)))
+	if (unlikely(!xfs_valid_startblock(ip, imap->br_startblock))) {
+		xfs_bmap_mark_sick(ip, XFS_DATA_FORK);
 		error = xfs_alert_fsblock_zero(ip, imap);
+	}
 
 out_unlock:
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
@@ -588,8 +592,10 @@  xfs_iomap_write_unwritten(
 		if (error)
 			return error;
 
-		if (unlikely(!xfs_valid_startblock(ip, imap.br_startblock)))
+		if (unlikely(!xfs_valid_startblock(ip, imap.br_startblock))) {
+			xfs_bmap_mark_sick(ip, XFS_DATA_FORK);
 			return xfs_alert_fsblock_zero(ip, &imap);
+		}
 
 		if ((numblks_fsb = imap.br_blockcount) == 0) {
 			/*
@@ -848,6 +854,7 @@  xfs_buffered_write_iomap_begin(
 
 	if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(ip, XFS_DATA_FORK)) ||
 	    XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BMAPIFORMAT)) {
+		xfs_bmap_mark_sick(ip, XFS_DATA_FORK);
 		error = -EFSCORRUPTED;
 		goto out_unlock;
 	}