xfs: report realtime refcount btree corruption errors to the health system

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@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

5 files changed, 14 insertions, 3 deletions

diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h
index d42d3a5617e3..ea9e58a89d92 100644
--- a/fs/xfs/libxfs/xfs_fs.h
+++ b/fs/xfs/libxfs/xfs_fs.h
@@ -996,6 +996,7 @@ struct xfs_rtgroup_geometry {
 #define XFS_RTGROUP_GEOM_SICK_BITMAP	(1U << 1)  /* rtbitmap */
 #define XFS_RTGROUP_GEOM_SICK_SUMMARY	(1U << 2)  /* rtsummary */
 #define XFS_RTGROUP_GEOM_SICK_RMAPBT	(1U << 3)  /* reverse mappings */
+#define XFS_RTGROUP_GEOM_SICK_REFCNTBT	(1U << 4)  /* reference counts */
 
 /*
  * ioctl commands that are used by Linux filesystems
diff --git a/fs/xfs/libxfs/xfs_health.h b/fs/xfs/libxfs/xfs_health.h
index 5c8a0aff6ba6..b31000f7190c 100644
--- a/fs/xfs/libxfs/xfs_health.h
+++ b/fs/xfs/libxfs/xfs_health.h
@@ -71,6 +71,7 @@ struct xfs_rtgroup;
 #define XFS_SICK_RG_BITMAP	(1 << 1)  /* rt group bitmap */
 #define XFS_SICK_RG_SUMMARY	(1 << 2)  /* rt groups summary */
 #define XFS_SICK_RG_RMAPBT	(1 << 3)  /* reverse mappings */
+#define XFS_SICK_RG_REFCNTBT	(1 << 4)  /* reference counts */
 
 /* Observable health issues for AG metadata. */
 #define XFS_SICK_AG_SB		(1 << 0)  /* superblock */
@@ -117,7 +118,8 @@ struct xfs_rtgroup;
 #define XFS_SICK_RG_PRIMARY	(XFS_SICK_RG_SUPER | \
 				 XFS_SICK_RG_BITMAP | \
 				 XFS_SICK_RG_SUMMARY | \
-				 XFS_SICK_RG_RMAPBT)
+				 XFS_SICK_RG_RMAPBT | \
+				 XFS_SICK_RG_REFCNTBT)
 
 #define XFS_SICK_AG_PRIMARY	(XFS_SICK_AG_SB | \
 				 XFS_SICK_AG_AGF | \
diff --git a/fs/xfs/libxfs/xfs_rtgroup.c b/fs/xfs/libxfs/xfs_rtgroup.c
index eab655a4a9ef..a6468e591232 100644
--- a/fs/xfs/libxfs/xfs_rtgroup.c
+++ b/fs/xfs/libxfs/xfs_rtgroup.c
@@ -380,6 +380,7 @@ static const struct xfs_rtginode_ops xfs_rtginode_ops[XFS_RTGI_MAX] = {
 	[XFS_RTGI_REFCOUNT] = {
 		.name		= "refcount",
 		.metafile_type	= XFS_METAFILE_RTREFCOUNT,
+		.sick		= XFS_SICK_RG_REFCNTBT,
 		.fmt_mask	= 1U << XFS_DINODE_FMT_META_BTREE,
 		/* same comment about growfs and rmap inodes applies here */
 		.enabled	= xfs_has_reflink,
diff --git a/fs/xfs/libxfs/xfs_rtrefcount_btree.c b/fs/xfs/libxfs/xfs_rtrefcount_btree.c
index 151fb1ef7db1..3db5e7a4a945 100644
--- a/fs/xfs/libxfs/xfs_rtrefcount_btree.c
+++ b/fs/xfs/libxfs/xfs_rtrefcount_btree.c
@@ -27,6 +27,7 @@
 #include "xfs_rtgroup.h"
 #include "xfs_rtbitmap.h"
 #include "xfs_metafile.h"
+#include "xfs_health.h"
 
 static struct kmem_cache	*xfs_rtrefcountbt_cur_cache;
 
@@ -374,6 +375,7 @@ const struct xfs_btree_ops xfs_rtrefcountbt_ops = {
 
 	.lru_refs		= XFS_REFC_BTREE_REF,
 	.statoff		= XFS_STATS_CALC_INDEX(xs_rtrefcbt_2),
+	.sick_mask		= XFS_SICK_RG_REFCNTBT,
 
 	.dup_cursor		= xfs_rtrefcountbt_dup_cursor,
 	.alloc_block		= xfs_btree_alloc_metafile_block,
@@ -640,16 +642,20 @@ xfs_iformat_rtrefcount(
 	 * volume to the filesystem, so we cannot use the rtrefcount predicate
 	 * here.
 	 */
-	if (!xfs_has_reflink(ip->i_mount))
+	if (!xfs_has_reflink(ip->i_mount)) {
+		xfs_inode_mark_sick(ip, XFS_SICK_INO_CORE);
 		return -EFSCORRUPTED;
+	}
 
 	dsize = XFS_DFORK_SIZE(dip, mp, XFS_DATA_FORK);
 	numrecs = be16_to_cpu(dfp->bb_numrecs);
 	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;
+	}
 
 	broot = xfs_broot_alloc(xfs_ifork_ptr(ip, XFS_DATA_FORK),
 			xfs_rtrefcount_broot_space_calc(mp, level, numrecs));
diff --git a/fs/xfs/xfs_health.c b/fs/xfs/xfs_health.c
index d438c3c001c8..7c541fb373d5 100644
--- a/fs/xfs/xfs_health.c
+++ b/fs/xfs/xfs_health.c
@@ -448,6 +448,7 @@ static const struct ioctl_sick_map rtgroup_map[] = {
 	{ XFS_SICK_RG_BITMAP,	XFS_RTGROUP_GEOM_SICK_BITMAP },
 	{ XFS_SICK_RG_SUMMARY,	XFS_RTGROUP_GEOM_SICK_SUMMARY },
 	{ XFS_SICK_RG_RMAPBT,	XFS_RTGROUP_GEOM_SICK_RMAPBT },
+	{ XFS_SICK_RG_REFCNTBT,	XFS_RTGROUP_GEOM_SICK_REFCNTBT },
 };
 
 /* Fill out rtgroup geometry health info. */