cgroups: s/cgfd_con/dfd_con/g

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

src/lxc/cgroups/cgfsng.c

@@ -401,7 +401,7 @@ static int cgroup_hierarchy_add(struct cgroup_ops *ops, int dfd_mnt, char *mnt,
 	if (!new)
 		return ret_errno(ENOMEM);
 
-	new->cgfd_con		= -EBADF;
+	new->dfd_con		= -EBADF;
 	new->cgfd_limit		= -EBADF;
 	new->cgfd_mon		= -EBADF;
 
@@ -801,11 +801,11 @@ static bool cgroup_tree_create(struct cgroup_ops *ops, struct lxc_conf *conf,
 		return syserrno(false, "Failed to create %s cgroup %d(%s)", payload ? "payload" : "monitor", h->dfd_base, cgroup_limit_dir);
 
 	if (payload) {
-		h->cgfd_con = move_fd(fd_final);
+		h->dfd_con = move_fd(fd_final);
 		h->container_full_path = move_ptr(path);
 
 		if (fd_limit < 0)
-			h->cgfd_limit = h->cgfd_con;
+			h->cgfd_limit = h->dfd_con;
 		else
 			h->cgfd_limit = move_fd(fd_limit);
 
@@ -831,7 +831,7 @@ static void cgroup_tree_prune_leaf(struct hierarchy *h, const char *path_prune,
 			prune = false;
 
 		free_equal(h->container_full_path, h->container_limit_path);
-		close_equal(h->cgfd_con, h->cgfd_limit);
+		close_equal(h->dfd_con, h->cgfd_limit);
 	} else {
 		/* Check whether we actually created the cgroup to prune. */
 		if (h->cgfd_mon < 0)
@@ -1240,11 +1240,11 @@ __cgfsng_ops static bool cgfsng_payload_enter(struct cgroup_ops *ops,
 		    (handler->clone_flags & CLONE_INTO_CGROUP))
 			continue;
 
-		ret = lxc_writeat(h->cgfd_con, "cgroup.procs", pidstr, len);
+		ret = lxc_writeat(h->dfd_con, "cgroup.procs", pidstr, len);
 		if (ret != 0)
 			return log_error_errno(false, errno, "Failed to enter cgroup \"%s\"", h->container_full_path);
 
-		TRACE("Moved container into %s cgroup via %d", h->container_full_path, h->cgfd_con);
+		TRACE("Moved container into %s cgroup via %d", h->container_full_path, h->dfd_con);
 	}
 
 	return true;
@@ -1304,7 +1304,7 @@ static int chown_cgroup_wrapper(void *data)
 		destuid = 0;
 
 	for (int i = 0; arg->hierarchies[i]; i++) {
-		int dirfd = arg->hierarchies[i]->cgfd_con;
+		int dirfd = arg->hierarchies[i]->dfd_con;
 
 		(void)fchowmodat(dirfd, "", destuid, nsgid, 0775);
 
@@ -1379,7 +1379,7 @@ __cgfsng_ops static void cgfsng_payload_finalize(struct cgroup_ops *ops)
 		 * lot of them.
 		 */
 		if (!is_unified_hierarchy(h))
-			close_prot_errno_disarm(h->cgfd_con);
+			close_prot_errno_disarm(h->dfd_con);
 	}
 
 	/*
@@ -1397,7 +1397,7 @@ __cgfsng_ops static void cgfsng_payload_finalize(struct cgroup_ops *ops)
 	 * for our container which means we check here.
 	 */
         if (pure_unified_layout(ops) &&
-            !faccessat(ops->unified->cgfd_con, "cgroup.freeze", F_OK,
+            !faccessat(ops->unified->dfd_con, "cgroup.freeze", F_OK,
                        AT_SYMLINK_NOFOLLOW)) {
 		TRACE("Unified hierarchy supports freezer");
 		ops->unified->freezer_controller = 1;

src/lxc/cgroups/cgroup.c

@@ -91,7 +91,7 @@ void cgroup_exit(struct cgroup_ops *ops)
 		free_equal((*it)->container_full_path,
 			   (*it)->container_limit_path);
 
-		close_equal((*it)->cgfd_con, (*it)->cgfd_limit);
+		close_equal((*it)->dfd_con, (*it)->cgfd_limit);
 
 		if ((*it)->cgfd_mon >= 0)
 			close((*it)->cgfd_mon);

src/lxc/cgroups/cgroup.h

@@ -92,12 +92,12 @@ struct hierarchy {
 	unsigned int freezer_controller:1;
 
 	/* File descriptor for the container's cgroup @container_full_path. */
-	int cgfd_con;
+	int dfd_con;
 
 	/*
 	 * File descriptor for the container's limiting cgroup
 	 * @container_limit_path.
-	 * Will be equal to @cgfd_con if no limiting cgroup has been requested.
+	 * Will be equal to @dfd_con if no limiting cgroup has been requested.
 	 */
 	int cgfd_limit;
 
@@ -233,7 +233,7 @@ static inline int cgroup_unified_fd(const struct cgroup_ops *ops)
 	if (!ops->unified)
 		return -EBADF;
 
-	return ops->unified->cgfd_con;
+	return ops->unified->dfd_con;
 }
 
 #define make_cgroup_path(__hierarchy, __first, ...)                    \

src/lxc/commands.c

@@ -1519,7 +1519,7 @@ static int lxc_cmd_get_cgroup2_fd_callback_do(int fd, struct lxc_cmd_req *req,
 		return lxc_cmd_rsp_send(fd, &rsp);
 
 	send_fd = limiting_cgroup ? ops->unified->cgfd_limit
-				  : ops->unified->cgfd_con;
+				  : ops->unified->dfd_con;
 
 	rsp.ret = 0;
 	ret = lxc_abstract_unix_send_fds(fd, &send_fd, 1, &rsp, sizeof(rsp));