diff --git a/db/attrset.c b/db/attrset.c
index 98a08a49..6441809a 100644
--- a/db/attrset.c
+++ b/db/attrset.c
@@ -107,7 +107,6 @@ attr_set_f(
 			break;
 
 		case 'n':
-			mp->m_flags |= LIBXFS_MOUNT_COMPAT_ATTR;
 			break;
 
 		/* value length */
@@ -169,7 +168,6 @@ attr_set_f(
 	set_cur_inode(iocur_top->ino);
 
 out:
-	mp->m_flags &= ~LIBXFS_MOUNT_COMPAT_ATTR;
 	if (args.dp)
 		libxfs_irele(args.dp);
 	if (args.value)
@@ -211,7 +209,6 @@ attr_remove_f(
 			break;
 
 		case 'n':
-			mp->m_flags |= LIBXFS_MOUNT_COMPAT_ATTR;
 			break;
 
 		default:
@@ -254,7 +251,6 @@ attr_remove_f(
 	set_cur_inode(iocur_top->ino);
 
 out:
-	mp->m_flags &= ~LIBXFS_MOUNT_COMPAT_ATTR;
 	if (args.dp)
 		libxfs_irele(args.dp);
 	return 0;
diff --git a/include/xfs_mount.h b/include/xfs_mount.h
index 1f4f4390..41fd374a 100644
--- a/include/xfs_mount.h
+++ b/include/xfs_mount.h
@@ -77,7 +77,6 @@ typedef struct xfs_mount {
 	uint			m_alloc_set_aside; /* space we can't use */
 	uint			m_ag_max_usable; /* max space per AG */
 	struct radix_tree_root	m_perag_tree;
-	uint			m_flags;	/* global mount flags */
 	uint64_t		m_features;	/* active filesystem features */
 	unsigned long		m_opstate;	/* dynamic state flags */
 	bool			m_finobt_nores; /* no per-AG finobt resv. */
@@ -249,11 +248,7 @@ __XFS_UNSUPP_OPSTATE(readonly)
 __XFS_UNSUPP_OPSTATE(shutdown)
 
 #define LIBXFS_MOUNT_DEBUGGER		0x0001
-#define LIBXFS_MOUNT_32BITINODES	0x0002
-#define LIBXFS_MOUNT_32BITINOOPT	0x0004
-#define LIBXFS_MOUNT_COMPAT_ATTR	0x0008
-#define LIBXFS_MOUNT_ATTR2		0x0010
-#define LIBXFS_MOUNT_WANT_CORRUPTED	0x0020
+#define LIBXFS_MOUNT_WANT_CORRUPTED	0x0002
 
 #define LIBXFS_BHASHSIZE(sbp) 		(1<<10)
 
diff --git a/libxfs/init.c b/libxfs/init.c
index a96f5389..7845ba2c 100644
--- a/libxfs/init.c
+++ b/libxfs/init.c
@@ -532,13 +532,10 @@ xfs_set_inode_alloc(
 	 * sufficiently large, set XFS_MOUNT_32BITINODES if we must alter
 	 * the allocator to accommodate the request.
 	 */
-	if ((mp->m_flags & XFS_MOUNT_SMALL_INUMS) && ino > XFS_MAXINUMBER_32) {
+	if (ino > XFS_MAXINUMBER_32)
 		xfs_set_inode32(mp);
-		mp->m_flags |= XFS_MOUNT_32BITINODES;
-	} else {
+	else
 		xfs_clear_inode32(mp);
-		mp->m_flags &= ~XFS_MOUNT_32BITINODES;
-	}
 
 	for (index = 0; index < agcount; index++) {
 		struct xfs_perag	*pag;
@@ -725,7 +722,6 @@ libxfs_mount(
 	libxfs_buftarg_init(mp, dev, logdev, rtdev);
 
 	mp->m_finobt_nores = true;
-	mp->m_flags = (LIBXFS_MOUNT_32BITINODES|LIBXFS_MOUNT_32BITINOOPT);
 	xfs_set_inode32(mp);
 	mp->m_sb = *sb;
 	INIT_RADIX_TREE(&mp->m_perag_tree, GFP_KERNEL);
@@ -789,9 +785,6 @@ libxfs_mount(
 
 	xfs_da_mount(mp);
 
-	if (xfs_has_attr2(mp))
-		mp->m_flags |= LIBXFS_MOUNT_ATTR2;
-
 	/* Initialize the precomputed transaction reservations values */
 	xfs_trans_init(mp);
 
diff --git a/libxfs/libxfs_priv.h b/libxfs/libxfs_priv.h
index 3fc13c52..75f26f36 100644
--- a/libxfs/libxfs_priv.h
+++ b/libxfs/libxfs_priv.h
@@ -443,16 +443,6 @@ void __xfs_buf_mark_corrupt(struct xfs_buf *bp, xfs_failaddr_t fa);
 #define xfs_buf_mark_corrupt(bp) __xfs_buf_mark_corrupt((bp), __this_address)
 
 /* mount stuff */
-#define XFS_MOUNT_32BITINODES		LIBXFS_MOUNT_32BITINODES
-#define XFS_MOUNT_ATTR2			LIBXFS_MOUNT_ATTR2
-#define XFS_MOUNT_SMALL_INUMS		0	/* ignored in userspace */
-#define XFS_MOUNT_WSYNC			0	/* ignored in userspace */
-#define XFS_MOUNT_NOALIGN		0	/* ignored in userspace */
-#define XFS_MOUNT_IKEEP			0	/* ignored in userspace */
-#define XFS_MOUNT_SWALLOC		0	/* ignored in userspace */
-#define XFS_MOUNT_RDONLY		0	/* ignored in userspace */
-#define XFS_MOUNT_BAD_SUMMARY		0	/* ignored in userspace */
-
 #define xfs_trans_set_sync(tp)		((void) 0)
 #define xfs_trans_buf_set_type(tp, bp, t)	({	\
 	int __t = (t);					\
diff --git a/libxlog/xfs_log_recover.c b/libxlog/xfs_log_recover.c
index 592e4502..d43914b9 100644
--- a/libxlog/xfs_log_recover.c
+++ b/libxlog/xfs_log_recover.c
@@ -827,7 +827,6 @@ xlog_find_tail(
 			 * superblock counters from the perag headers if we
 			 * have a filesystem using non-persistent counters.
 			 */
-			log->l_mp->m_flags |= XFS_MOUNT_WAS_CLEAN;
 		}
 	}
 
