[PATCH RFC 27/29] xfs: report verity failures through the health system

[Andrey Albershteyn <aalbersh@redhat.com>]

From: "Darrick J. Wong" <djwong@kernel.org>

Record verity failures and report them through the health system.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Andrey Albershteyn <aalbersh@redhat.com>
---
 fs/xfs/libxfs/xfs_fs.h     |  1 +
 fs/xfs/libxfs/xfs_health.h |  4 +++-
 fs/xfs/xfs_fsverity.c      | 11 +++++++++++
 fs/xfs/xfs_health.c        |  1 +
 4 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h
index 9d07c7872e94..501e4e59c6c9 100644
--- a/fs/xfs/libxfs/xfs_fs.h
+++ b/fs/xfs/libxfs/xfs_fs.h
@@ -422,6 +422,7 @@ struct xfs_bulkstat {
 #define XFS_BS_SICK_SYMLINK	(1 << 6)  /* symbolic link remote target */
 #define XFS_BS_SICK_PARENT	(1 << 7)  /* parent pointers */
 #define XFS_BS_SICK_DIRTREE	(1 << 8)  /* directory tree structure */
+#define XFS_BS_SICK_DATA	(1 << 9)  /* file data */
 
 /*
  * Project quota id helpers (previously projid was 16bit only
diff --git a/fs/xfs/libxfs/xfs_health.h b/fs/xfs/libxfs/xfs_health.h
index b31000f7190c..fa91916ad072 100644
--- a/fs/xfs/libxfs/xfs_health.h
+++ b/fs/xfs/libxfs/xfs_health.h
@@ -104,6 +104,7 @@ struct xfs_rtgroup;
 /* Don't propagate sick status to ag health summary during inactivation */
 #define XFS_SICK_INO_FORGET	(1 << 12)
 #define XFS_SICK_INO_DIRTREE	(1 << 13)  /* directory tree structure */
+#define XFS_SICK_INO_DATA	(1 << 14)  /* file data */
 
 /* Primary evidence of health problems in a given group. */
 #define XFS_SICK_FS_PRIMARY	(XFS_SICK_FS_COUNTERS | \
@@ -140,7 +141,8 @@ struct xfs_rtgroup;
 				 XFS_SICK_INO_XATTR | \
 				 XFS_SICK_INO_SYMLINK | \
 				 XFS_SICK_INO_PARENT | \
-				 XFS_SICK_INO_DIRTREE)
+				 XFS_SICK_INO_DIRTREE | \
+				 XFS_SICK_INO_DATA)
 
 #define XFS_SICK_INO_ZAPPED	(XFS_SICK_INO_BMBTD_ZAPPED | \
 				 XFS_SICK_INO_BMBTA_ZAPPED | \
diff --git a/fs/xfs/xfs_fsverity.c b/fs/xfs/xfs_fsverity.c
index ec7dea4289d5..dfe7b0bcd97e 100644
--- a/fs/xfs/xfs_fsverity.c
+++ b/fs/xfs/xfs_fsverity.c
@@ -21,6 +21,7 @@
 #include "xfs_ag.h"
 #include "xfs_fsverity.h"
 #include "xfs_iomap.h"
+#include "xfs_health.h"
 #include <linux/fsverity.h>
 #include <linux/pagemap.h>
 
@@ -302,10 +303,20 @@ xfs_fsverity_write_merkle(
 	return iomap_write_region(&region);
 }
 
+static void
+xfs_fsverity_file_corrupt(
+	struct inode		*inode,
+	loff_t			pos,
+	size_t			len)
+{
+	xfs_inode_mark_sick(XFS_I(inode), XFS_SICK_INO_DATA);
+}
+
 const struct fsverity_operations xfs_fsverity_ops = {
 	.begin_enable_verity		= xfs_fsverity_begin_enable,
 	.end_enable_verity		= xfs_fsverity_end_enable,
 	.get_verity_descriptor		= xfs_fsverity_get_descriptor,
 	.read_merkle_tree_page		= xfs_fsverity_read_merkle,
 	.write_merkle_tree_block	= xfs_fsverity_write_merkle,
+	.file_corrupt			= xfs_fsverity_file_corrupt,
 };
diff --git a/fs/xfs/xfs_health.c b/fs/xfs/xfs_health.c
index 7c541fb373d5..4202b8441735 100644
--- a/fs/xfs/xfs_health.c
+++ b/fs/xfs/xfs_health.c
@@ -487,6 +487,7 @@ static const struct ioctl_sick_map ino_map[] = {
 	{ XFS_SICK_INO_DIR_ZAPPED,	XFS_BS_SICK_DIR },
 	{ XFS_SICK_INO_SYMLINK_ZAPPED,	XFS_BS_SICK_SYMLINK },
 	{ XFS_SICK_INO_DIRTREE,	XFS_BS_SICK_DIRTREE },
+	{ XFS_SICK_INO_DATA,	XFS_BS_SICK_DATA },
 };
 
 /* Fill out bulkstat health info. */

-- 
2.50.0