From 841a5f87e2d08c60836859da69575b36caadb37d Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <djwong@kernel.org>
Date: Thu, 22 Feb 2024 12:32:44 -0800
Subject: [PATCH] xfs: report quota block corruption errors to the health
 system

Whenever we encounter corrupt quota 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/xfs_dquot.c  | 30 ++++++++++++++++++++++++++++++
 fs/xfs/xfs_health.c |  1 +
 fs/xfs/xfs_qm.c     |  8 ++++++--
 3 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index 308b5f33b712..30d36596a2e4 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -24,6 +24,7 @@
 #include "xfs_log.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_error.h"
+#include "xfs_health.h"
 
 /*
  * Lock order:
@@ -44,6 +45,29 @@ static struct kmem_cache	*xfs_dquot_cache;
 static struct lock_class_key xfs_dquot_group_class;
 static struct lock_class_key xfs_dquot_project_class;
 
+/* Record observations of quota corruption with the health tracking system. */
+static void
+xfs_dquot_mark_sick(
+	struct xfs_dquot	*dqp)
+{
+	struct xfs_mount	*mp = dqp->q_mount;
+
+	switch (dqp->q_type) {
+	case XFS_DQTYPE_USER:
+		xfs_fs_mark_sick(mp, XFS_SICK_FS_UQUOTA);
+		break;
+	case XFS_DQTYPE_GROUP:
+		xfs_fs_mark_sick(mp, XFS_SICK_FS_GQUOTA);
+		break;
+	case XFS_DQTYPE_PROJ:
+		xfs_fs_mark_sick(mp, XFS_SICK_FS_PQUOTA);
+		break;
+	default:
+		ASSERT(0);
+		break;
+	}
+}
+
 /*
  * This is called to free all the memory associated with a dquot
  */
@@ -451,6 +475,8 @@ xfs_dquot_disk_read(
 	error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, dqp->q_blkno,
 			mp->m_quotainfo->qi_dqchunklen, 0, &bp,
 			&xfs_dquot_buf_ops);
+	if (xfs_metadata_is_sick(error))
+		xfs_dquot_mark_sick(dqp);
 	if (error) {
 		ASSERT(bp == NULL);
 		return error;
@@ -574,6 +600,7 @@ xfs_dquot_from_disk(
 			  "Metadata corruption detected at %pS, quota %u",
 			  __this_address, dqp->q_id);
 		xfs_alert(bp->b_mount, "Unmount and run xfs_repair");
+		xfs_dquot_mark_sick(dqp);
 		return -EFSCORRUPTED;
 	}
 
@@ -1238,6 +1265,8 @@ xfs_qm_dqflush(
 				   &bp, &xfs_dquot_buf_ops);
 	if (error == -EAGAIN)
 		goto out_unlock;
+	if (xfs_metadata_is_sick(error))
+		xfs_dquot_mark_sick(dqp);
 	if (error)
 		goto out_abort;
 
@@ -1246,6 +1275,7 @@ xfs_qm_dqflush(
 		xfs_alert(mp, "corrupt dquot ID 0x%x in memory at %pS",
 				dqp->q_id, fa);
 		xfs_buf_relse(bp);
+		xfs_dquot_mark_sick(dqp);
 		error = -EFSCORRUPTED;
 		goto out_abort;
 	}
diff --git a/fs/xfs/xfs_health.c b/fs/xfs/xfs_health.c
index 568300ae8555..bbdc621e5ee5 100644
--- a/fs/xfs/xfs_health.c
+++ b/fs/xfs/xfs_health.c
@@ -17,6 +17,7 @@
 #include "xfs_btree.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
+#include "xfs_quota_defs.h"
 
 /*
  * Warn about metadata corruption that we detected but haven't fixed, and
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 991be1eacb6c..0f4cf4170c35 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -763,14 +763,18 @@ xfs_qm_qino_alloc(
 			     (mp->m_sb.sb_gquotino != NULLFSINO)) {
 			ino = mp->m_sb.sb_gquotino;
 			if (XFS_IS_CORRUPT(mp,
-					   mp->m_sb.sb_pquotino != NULLFSINO))
+					   mp->m_sb.sb_pquotino != NULLFSINO)) {
+				xfs_fs_mark_sick(mp, XFS_SICK_FS_PQUOTA);
 				return -EFSCORRUPTED;
+			}
 		} else if ((flags & XFS_QMOPT_GQUOTA) &&
 			     (mp->m_sb.sb_pquotino != NULLFSINO)) {
 			ino = mp->m_sb.sb_pquotino;
 			if (XFS_IS_CORRUPT(mp,
-					   mp->m_sb.sb_gquotino != NULLFSINO))
+					   mp->m_sb.sb_gquotino != NULLFSINO)) {
+				xfs_fs_mark_sick(mp, XFS_SICK_FS_GQUOTA);
 				return -EFSCORRUPTED;
+			}
 		}
 		if (ino != NULLFSINO) {
 			error = xfs_iget(mp, NULL, ino, 0, 0, ipp);