248 	return (mnt->mnt_flags & MNT_READONLY) || sb_rdonly(mnt->mnt_sb);  in __mnt_is_readonly()
324 	while (READ_ONCE(mnt->mnt.mnt_flags) & MNT_WRITE_HOLD)  in __mnt_want_write()
467 	mnt->mnt.mnt_flags |= MNT_WRITE_HOLD;  in mnt_make_readonly()
493 		mnt->mnt.mnt_flags |= MNT_READONLY;  in mnt_make_readonly()
499 	mnt->mnt.mnt_flags &= ~MNT_WRITE_HOLD;  in mnt_make_readonly()
507 	mnt->mnt.mnt_flags &= ~MNT_READONLY;  in __mnt_unmake_readonly()
523 		if (!(mnt->mnt.mnt_flags & MNT_READONLY)) {  in sb_prepare_remount_readonly()
524 			mnt->mnt.mnt_flags |= MNT_WRITE_HOLD;  in sb_prepare_remount_readonly()
540 		if (mnt->mnt.mnt_flags & MNT_WRITE_HOLD)  in sb_prepare_remount_readonly()
541 			mnt->mnt.mnt_flags &= ~MNT_WRITE_HOLD;  in sb_prepare_remount_readonly()
575 	if (bastard->mnt_flags & MNT_SYNC_UMOUNT) {  in __legitimize_mnt()
580 	if (unlikely(bastard->mnt_flags & MNT_DOOMED)) {  in __legitimize_mnt()
945 		mnt->mnt.mnt_flags = MNT_INTERNAL;  in vfs_create_mount()
1038 	mnt->mnt.mnt_flags = old->mnt.mnt_flags;  in clone_mnt()
1039 	mnt->mnt.mnt_flags &= ~(MNT_WRITE_HOLD|MNT_MARKED|MNT_INTERNAL);  in clone_mnt()
1154 	if (unlikely(mnt->mnt.mnt_flags & MNT_DOOMED)) {  in mntput_no_expire()
1159 	mnt->mnt.mnt_flags |= MNT_DOOMED;  in mntput_no_expire()
1174 	if (likely(!(mnt->mnt.mnt_flags & MNT_INTERNAL))) {  in mntput_no_expire()
1243 	p->mnt.mnt_flags |= MNT_INTERNAL;  in mnt_clone_internal()
1408 	if (!(mnt->mnt_parent->mnt.mnt_flags & MNT_UMOUNT))  in disconnect_mount()
1437 		p->mnt.mnt_flags |= MNT_UMOUNT;  in umount_tree()
1463 			p->mnt.mnt_flags |= MNT_SYNC_UMOUNT;  in umount_tree()
1579 	if (mnt->mnt.mnt_flags & MNT_LOCKED)  in do_umount()
1626 		if (mnt->mnt.mnt_flags & MNT_UMOUNT) {  in __detach_mounts()
1692 	if (mnt->mnt.mnt_flags & MNT_LOCKED) /* Check optimistically */  in ksys_umount()
1775 				if (s->mnt.mnt_flags & MNT_LOCKED) {  in copy_tree()
1906 		int flags = p->mnt.mnt_flags;  in lock_mnt_tree()
1924 		p->mnt.mnt_flags = flags;  in lock_mnt_tree()
2103 		child->mnt.mnt_flags &= ~MNT_LOCKED;  in attach_recursive_mnt()
2241 		if (child->mnt.mnt_flags & MNT_LOCKED)  in has_locked_children()
2266 		mnt->mnt.mnt_flags &= ~MNT_LOCKED;  in __do_loopback()
2416 static bool can_change_locked_flags(struct mount *mnt, unsigned int mnt_flags)  in can_change_locked_flags()  argument
2418 	unsigned int fl = mnt->mnt.mnt_flags;  in can_change_locked_flags()
2421 	    !(mnt_flags & MNT_READONLY))  in can_change_locked_flags()
2425 	    !(mnt_flags & MNT_NODEV))  in can_change_locked_flags()
2429 	    !(mnt_flags & MNT_NOSUID))  in can_change_locked_flags()
2433 	    !(mnt_flags & MNT_NOEXEC))  in can_change_locked_flags()
2437 	    ((fl & MNT_ATIME_MASK) != (mnt_flags & MNT_ATIME_MASK)))  in can_change_locked_flags()
2443 static int change_mount_ro_state(struct mount *mnt, unsigned int mnt_flags)  in change_mount_ro_state()  argument
2445 	bool readonly_request = (mnt_flags & MNT_READONLY);  in change_mount_ro_state()
2460 static void set_mount_attributes(struct mount *mnt, unsigned int mnt_flags)  in set_mount_attributes()  argument
2463 	mnt_flags |= mnt->mnt.mnt_flags & ~MNT_USER_SETTABLE_MASK;  in set_mount_attributes()
2464 	mnt->mnt.mnt_flags = mnt_flags;  in set_mount_attributes()
2496 static int do_reconfigure_mnt(struct path *path, unsigned int mnt_flags)  in do_reconfigure_mnt()  argument
2508 	if (!can_change_locked_flags(mnt, mnt_flags))  in do_reconfigure_mnt()
2512 	ret = change_mount_ro_state(mnt, mnt_flags);  in do_reconfigure_mnt()
2514 		set_mount_attributes(mnt, mnt_flags);  in do_reconfigure_mnt()
2528 		      int mnt_flags, void *data)  in do_remount()  argument
2541 	if (!can_change_locked_flags(mnt, mnt_flags))  in do_remount()
2555 				set_mount_attributes(mnt, mnt_flags);  in do_remount()
2632 	if (old->mnt.mnt_flags & MNT_LOCKED)  in do_move_mount()
2700 static int do_add_mount(struct mount *newmnt, struct path *path, int mnt_flags)  in do_add_mount()  argument
2706 	mnt_flags &= ~MNT_INTERNAL_FLAGS;  in do_add_mount()
2716 		if (!(mnt_flags & MNT_SHRINKABLE))  in do_add_mount()
2733 	newmnt->mnt.mnt_flags = mnt_flags;  in do_add_mount()
2748 			   unsigned int mnt_flags)  in do_new_mount_fc()  argument
2755 	if (!error && mount_too_revealing(sb, &mnt_flags))  in do_new_mount_fc()
2771 	error = do_add_mount(real_mount(mnt), mountpoint, mnt_flags);  in do_new_mount_fc()
2782 			int mnt_flags, const char *name, void *data)  in do_new_mount()  argument
2824 		err = do_new_mount_fc(fc, path, mnt_flags);  in do_new_mount()
2845 	err = do_add_mount(mnt, path, path->mnt->mnt_flags | MNT_SHRINKABLE);  in finish_automount()
2934 		if (!(mnt->mnt.mnt_flags & MNT_SHRINKABLE))  in select_submounts()
3065 	unsigned int mnt_flags = 0, sb_flags;  in do_mount()  local
3095 		mnt_flags |= MNT_RELATIME;  in do_mount()
3099 		mnt_flags |= MNT_NOSUID;  in do_mount()
3101 		mnt_flags |= MNT_NODEV;  in do_mount()
3103 		mnt_flags |= MNT_NOEXEC;  in do_mount()
3105 		mnt_flags |= MNT_NOATIME;  in do_mount()
3107 		mnt_flags |= MNT_NODIRATIME;  in do_mount()
3109 		mnt_flags &= ~(MNT_RELATIME | MNT_NOATIME);  in do_mount()
3111 		mnt_flags |= MNT_READONLY;  in do_mount()
3117 		mnt_flags &= ~MNT_ATIME_MASK;  in do_mount()
3118 		mnt_flags |= path.mnt->mnt_flags & MNT_ATIME_MASK;  in do_mount()
3131 		retval = do_reconfigure_mnt(&path, mnt_flags);  in do_mount()
3133 		retval = do_remount(&path, flags, sb_flags, mnt_flags,  in do_mount()
3142 		retval = do_new_mount(&path, type_page, sb_flags, mnt_flags,  in do_mount()
3381 	unsigned int mnt_flags = 0;  in SYSCALL_DEFINE3()  local
3399 		mnt_flags |= MNT_READONLY;  in SYSCALL_DEFINE3()
3401 		mnt_flags |= MNT_NOSUID;  in SYSCALL_DEFINE3()
3403 		mnt_flags |= MNT_NODEV;  in SYSCALL_DEFINE3()
3405 		mnt_flags |= MNT_NOEXEC;  in SYSCALL_DEFINE3()
3407 		mnt_flags |= MNT_NODIRATIME;  in SYSCALL_DEFINE3()
3413 		mnt_flags |= MNT_NOATIME;  in SYSCALL_DEFINE3()
3416 		mnt_flags |= MNT_RELATIME;  in SYSCALL_DEFINE3()
3442 	if (mount_too_revealing(fc->root->d_sb, &mnt_flags)) {  in SYSCALL_DEFINE3()
3461 	newmount.mnt->mnt_flags = mnt_flags;  in SYSCALL_DEFINE3()
3659 	if (new_mnt->mnt.mnt_flags & MNT_LOCKED)  in SYSCALL_DEFINE2()
3685 	if (root_mnt->mnt.mnt_flags & MNT_LOCKED) {  in SYSCALL_DEFINE2()
3686 		new_mnt->mnt.mnt_flags |= MNT_LOCKED;  in SYSCALL_DEFINE2()
3687 		root_mnt->mnt.mnt_flags &= ~MNT_LOCKED;  in SYSCALL_DEFINE2()
3739 	mnt->mnt_flags |= MNT_LOCKED;  in init_mount_tree()
3854 		int mnt_flags;  in mnt_already_visible()  local
3866 		mnt_flags = mnt->mnt.mnt_flags;  in mnt_already_visible()
3870 			mnt_flags |= MNT_LOCK_READONLY;  in mnt_already_visible()
3875 		if ((mnt_flags & MNT_LOCK_READONLY) &&  in mnt_already_visible()
3878 		if ((mnt_flags & MNT_LOCK_ATIME) &&  in mnt_already_visible()
3879 		    ((mnt_flags & MNT_ATIME_MASK) != (new_flags & MNT_ATIME_MASK)))  in mnt_already_visible()
3889 			if (!(child->mnt.mnt_flags & MNT_LOCKED))  in mnt_already_visible()
3896 		*new_mnt_flags |= mnt_flags & (MNT_LOCK_READONLY | \  in mnt_already_visible()
3939 	return !(mnt->mnt_flags & MNT_NOSUID) && check_mnt(real_mount(mnt)) &&  in mnt_may_suid()