3 files changed, 7 insertions, 11 deletions

diff --git a/sys/fs/tmpfs/tmpfs.h b/sys/fs/tmpfs/tmpfs.h
index cf1e3fa3cac92..8cd1c4b6dcdf7 100644
--- a/sys/fs/tmpfs/tmpfs.h
+++ b/sys/fs/tmpfs/tmpfs.h
@@ -312,12 +312,12 @@ struct tmpfs_mount {
 	/* Maximum number of memory pages available for use by the file
 	 * system, set during mount time.  This variable must never be
 	 * used directly as it may be bigger than the current amount of
-	 * free memory; in the extreme case, it will hold the SIZE_MAX
+	 * free memory; in the extreme case, it will hold the ULONG_MAX
 	 * value. */
-	size_t			tm_pages_max;
+	u_long			tm_pages_max;
 
 	/* Number of pages in use by the file system. */
-	size_t			tm_pages_used;
+	u_long			tm_pages_used;
 
 	/* Pointer to the node representing the root directory of this
 	 * file system. */
diff --git a/sys/fs/tmpfs/tmpfs_subr.c b/sys/fs/tmpfs/tmpfs_subr.c
index 42a822c2038ec..0af55eccf8bf5 100644
--- a/sys/fs/tmpfs/tmpfs_subr.c
+++ b/sys/fs/tmpfs/tmpfs_subr.c
@@ -129,7 +129,7 @@ tmpfs_pages_check_avail(struct tmpfs_mount *tmp, size_t req_pages)
 	if (tmpfs_mem_avail() < req_pages)
 		return (0);
 
-	if (tmp->tm_pages_max != SIZE_MAX &&
+	if (tmp->tm_pages_max != ULONG_MAX &&
 	    tmp->tm_pages_max < req_pages + tmpfs_pages_used(tmp))
 			return (0);
 
@@ -327,9 +327,7 @@ tmpfs_free_node(struct tmpfs_mount *tmp, struct tmpfs_node *node)
 	case VREG:
 		uobj = node->tn_reg.tn_aobj;
 		if (uobj != NULL) {
-			TMPFS_LOCK(tmp);
-			tmp->tm_pages_used -= uobj->size;
-			TMPFS_UNLOCK(tmp);
+			atomic_subtract_long(&tmp->tm_pages_used, uobj->size);
 			KASSERT((uobj->flags & OBJ_TMPFS) == 0,
 			    ("leaked OBJ_TMPFS node %p vm_obj %p", node, uobj));
 			vm_object_deallocate(uobj);
@@ -1417,9 +1415,7 @@ retry:
 	uobj->size = newpages;
 	VM_OBJECT_WUNLOCK(uobj);
 
-	TMPFS_LOCK(tmp);
-	tmp->tm_pages_used += (newpages - oldpages);
-	TMPFS_UNLOCK(tmp);
+	atomic_add_long(&tmp->tm_pages_used, newpages - oldpages);
 
 	node->tn_size = newsize;
 	return (0);
diff --git a/sys/fs/tmpfs/tmpfs_vfsops.c b/sys/fs/tmpfs/tmpfs_vfsops.c
index 67de4b6716f21..869b6f1feafb8 100644
--- a/sys/fs/tmpfs/tmpfs_vfsops.c
+++ b/sys/fs/tmpfs/tmpfs_vfsops.c
@@ -397,7 +397,7 @@ tmpfs_statfs(struct mount *mp, struct statfs *sbp)
 	sbp->f_bsize = PAGE_SIZE;
 
 	used = tmpfs_pages_used(tmp);
-	if (tmp->tm_pages_max != SIZE_MAX)
+	if (tmp->tm_pages_max != ULONG_MAX)
 		 sbp->f_blocks = tmp->tm_pages_max;
 	else
 		 sbp->f_blocks = used + tmpfs_mem_avail();