diff --git a/sys/fs/tmpfs/tmpfs_subr.c b/sys/fs/tmpfs/tmpfs_subr.c
--- a/sys/fs/tmpfs/tmpfs_subr.c
+++ b/sys/fs/tmpfs/tmpfs_subr.c
@@ -457,7 +457,7 @@
 	size_t avail;
 	long reserved;
 
-	avail = swap_pager_avail + vm_free_count();
+	avail = swap_pager_avail + vm_free_count() + vm_inactive_count();
 	reserved = atomic_load_long(&tmpfs_pages_reserved);
 	if (__predict_false(avail < reserved))
 		return (0);