Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/fs/xfs/xfs_error.h b/fs/xfs/xfs_error.h
index 246d3e9..602aa7d 100644
--- a/fs/xfs/xfs_error.h
+++ b/fs/xfs/xfs_error.h
@@ -98,5 +98,6 @@
 #define		XFS_PTAG_SHUTDOWN_IOERROR	0x00000020
 #define		XFS_PTAG_SHUTDOWN_LOGERROR	0x00000040
 #define		XFS_PTAG_FSBLOCK_ZERO		0x00000080
+#define		XFS_PTAG_VERIFIER_ERROR		0x00000100
 
 #endif	/* __XFS_ERROR_H__ */