machined,machinectl: add calls for changing container/VM quotas

[elogind.git] / src / shared / machine-image.c

diff --git a/src/shared/machine-image.c b/src/shared/machine-image.c
index 8ea61052bd74c5f5a68d1b14d88c06b3390073ac..c6d2850ad2dcf9d901f3dce0f5ffe4d6b1a1e4f3 100644 (file)
--- a/src/shared/machine-image.c
+++ b/src/shared/machine-image.c
@@ -23,7 +23,6 @@
 #include <linux/fs.h>
 #include <fcntl.h>
 
-#include "strv.h"
 #include "utf8.h"
 #include "btrfs-util.h"
 #include "path-util.h"
@@ -425,7 +424,7 @@ int image_rename(Image *i, const char *new_name) {
         case IMAGE_RAW: {
                 const char *fn;
 
-                fn = strappenda(new_name, ".raw");
+                fn = strjoina(new_name, ".raw");
                 new_path = file_in_same_dir(i->path, fn);
                 break;
         }
@@ -486,13 +485,13 @@ int image_clone(Image *i, const char *new_name, bool read_only) {
 
         case IMAGE_SUBVOLUME:
         case IMAGE_DIRECTORY:
-                new_path = strappenda("/var/lib/machines/", new_name);
+                new_path = strjoina("/var/lib/machines/", new_name);
 
                 r = btrfs_subvol_snapshot(i->path, new_path, read_only, true);
                 break;
 
         case IMAGE_RAW:
-                new_path = strappenda("/var/lib/machines/", new_name, ".raw");
+                new_path = strjoina("/var/lib/machines/", new_name, ".raw");
 
                 r = copy_file_atomic(i->path, new_path, read_only ? 0444 : 0644, false, FS_NOCOW_FL);
                 break;
@@ -614,6 +613,19 @@ int image_path_lock(const char *path, int operation, LockFile *global, LockFile
         return 0;
 }
 
+int image_set_limit(Image *i, uint64_t referred_max) {
+        assert(i);
+
+        if (path_equal(i->path, "/") ||
+            path_startswith(i->path, "/usr"))
+                return -EROFS;
+
+        if (i->type != IMAGE_SUBVOLUME)
+                return -ENOTSUP;
+
+        return btrfs_quota_limit(i->path, referred_max);
+}
+
 int image_name_lock(const char *name, int operation, LockFile *ret) {
         const char *p;
 
@@ -629,7 +641,7 @@ int image_name_lock(const char *name, int operation, LockFile *ret) {
                 return -EBUSY;
 
         mkdir_p("/run/systemd/nspawn/locks", 0600);
-        p = strappenda("/run/systemd/nspawn/locks/name-", name);
+        p = strjoina("/run/systemd/nspawn/locks/name-", name);
 
         return make_lock_file(p, operation, ret);
 }