[PATCH 20/41] xfs: report realtime refcount btree corruption errors to the health system

["Darrick J. Wong" <djwong@xxxxxxxxxx>]

From: Darrick J. Wong <djwong@xxxxxxxxxx>

Whenever we encounter corrupt realtime refcount btree blocks, we should
report that to the health monitoring system for later reporting.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
 libxfs/xfs_fs.h               |    1 +
 libxfs/xfs_health.h           |    4 +++-
 libxfs/xfs_inode_fork.c       |    4 +++-
 libxfs/xfs_rtrefcount_btree.c |    5 ++++-
 4 files changed, 11 insertions(+), 3 deletions(-)


diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index 8547ba85c55..5819576a51a 100644
--- a/libxfs/xfs_fs.h
+++ b/libxfs/xfs_fs.h
@@ -314,6 +314,7 @@ struct xfs_rtgroup_geometry {
 #define XFS_RTGROUP_GEOM_SICK_SUPER	(1 << 0)  /* superblock */
 #define XFS_RTGROUP_GEOM_SICK_BITMAP	(1 << 1)  /* rtbitmap for this group */
 #define XFS_RTGROUP_GEOM_SICK_RMAPBT	(1 << 2)  /* reverse mappings */
+#define XFS_RTGROUP_GEOM_SICK_REFCNTBT	(1 << 3)  /* reference counts */
 
 /*
  * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
diff --git a/libxfs/xfs_health.h b/libxfs/xfs_health.h
index d5976f6b0de..13128216754 100644
--- a/libxfs/xfs_health.h
+++ b/libxfs/xfs_health.h
@@ -68,6 +68,7 @@ struct xfs_rtgroup;
 #define XFS_SICK_RT_SUMMARY	(1 << 1)  /* realtime summary */
 #define XFS_SICK_RT_SUPER	(1 << 2)  /* rt group superblock */
 #define XFS_SICK_RT_RMAPBT	(1 << 3)  /* reverse mappings */
+#define XFS_SICK_RT_REFCNTBT	(1 << 4)  /* reference counts */
 
 /* Observable health issues for AG metadata. */
 #define XFS_SICK_AG_SB		(1 << 0)  /* superblock */
@@ -106,7 +107,8 @@ struct xfs_rtgroup;
 #define XFS_SICK_RT_PRIMARY	(XFS_SICK_RT_BITMAP | \
 				 XFS_SICK_RT_SUMMARY | \
 				 XFS_SICK_RT_SUPER | \
-				 XFS_SICK_RT_RMAPBT)
+				 XFS_SICK_RT_RMAPBT | \
+				 XFS_SICK_RT_REFCNTBT)
 
 #define XFS_SICK_AG_PRIMARY	(XFS_SICK_AG_SB | \
 				 XFS_SICK_AG_AGF | \
diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c
index b019cbeb5fd..4bdcfcda234 100644
--- a/libxfs/xfs_inode_fork.c
+++ b/libxfs/xfs_inode_fork.c
@@ -266,8 +266,10 @@ xfs_iformat_data_fork(
 			}
 			return xfs_iformat_rtrmap(ip, dip);
 		case XFS_DINODE_FMT_REFCOUNT:
-			if (!xfs_has_rtreflink(ip->i_mount))
+			if (!xfs_has_rtreflink(ip->i_mount)) {
+				xfs_inode_mark_sick(ip, XFS_SICK_INO_CORE);
 				return -EFSCORRUPTED;
+			}
 			return xfs_iformat_rtrefcount(ip, dip);
 		default:
 			xfs_inode_verifier_error(ip, -EFSCORRUPTED, __func__,
diff --git a/libxfs/xfs_rtrefcount_btree.c b/libxfs/xfs_rtrefcount_btree.c
index 5e9930d315c..537287c1696 100644
--- a/libxfs/xfs_rtrefcount_btree.c
+++ b/libxfs/xfs_rtrefcount_btree.c
@@ -25,6 +25,7 @@
 #include "xfs_rtgroup.h"
 #include "xfs_rtbitmap.h"
 #include "xfs_imeta.h"
+#include "xfs_health.h"
 
 static struct kmem_cache	*xfs_rtrefcountbt_cur_cache;
 
@@ -691,8 +692,10 @@ xfs_iformat_rtrefcount(
 	level = be16_to_cpu(dfp->bb_level);
 
 	if (level > mp->m_rtrefc_maxlevels ||
-	    xfs_rtrefcount_droot_space_calc(level, numrecs) > dsize)
+	    xfs_rtrefcount_droot_space_calc(level, numrecs) > dsize) {
+		xfs_inode_mark_sick(ip, XFS_SICK_INO_CORE);
 		return -EFSCORRUPTED;
+	}
 
 	xfs_iroot_alloc(ip, XFS_DATA_FORK,
 			xfs_rtrefcount_broot_space_calc(mp, level, numrecs));