[Libguestfs] [PATCH v2 10/11] New API: btrfs_qgroup_assign

Hu Tao
Thu, 11 Dec 2014 06:11:38 -0000

btrfs_qgroup_assign adds a qgroup to a parent qgroup.

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
---
 daemon/btrfs.c       | 34 ++++++++++++++++++++++++++++++++++
 generator/actions.ml | 19 +++++++++++++++++++
 src/MAX_PROC_NR      |  2 +-
 3 files changed, 54 insertions(+), 1 deletion(-)

diff --git a/daemon/btrfs.c b/daemon/btrfs.c
index bdef54b..2ba5296 100644
--- a/daemon/btrfs.c
+++ b/daemon/btrfs.c
@@ -1272,3 +1272,37 @@ error:

   return NULL;
 }
+
+int
+do_btrfs_qgroup_assign (const char *src, const char *dst, const char *path)
+{
+  const size_t MAX_ARGS = 64;
+  const char *argv[MAX_ARGS];
+  size_t i = 0;
+  CLEANUP_FREE char *path_buf = NULL;
+  CLEANUP_FREE char *err = NULL;
+  CLEANUP_FREE char *out = NULL;
+  int r;
+
+  path_buf = sysroot_path (path);
+  if (path_buf == NULL) {
+    reply_with_perror ("malloc");
+    return -1;
+  }
+
+  ADD_ARG (argv, i, str_btrfs);
+  ADD_ARG (argv, i, "qgroup");
+  ADD_ARG (argv, i, "assign");
+  ADD_ARG (argv, i, src);
+  ADD_ARG (argv, i, dst);
+  ADD_ARG (argv, i, path_buf);
+  ADD_ARG (argv, i, NULL);
+
+  r = commandv (&out, &err, argv);
+  if (r == -1) {
+    reply_with_error ("%s: %s", path, err);
+    return -1;
+  }
+
+  return 0;
+}
diff --git a/generator/actions.ml b/generator/actions.ml
index d7fd22a..bb03112 100644
--- a/generator/actions.ml
+++ b/generator/actions.ml
@@ -12197,6 +12197,25 @@ Destroy a quota group." };
 Show all subvolume quota groups in a btrfs filesystem, inclding their
 usages." };

+  { defaults with
+    name = "btrfs_qgroup_assign";
+    style = RErr, [String "src"; String "dst"; Pathname
"path"], [];
+    proc_nr = Some 433;
+    optional = Some "btrfs"; camel_name =
"BTRFSQgroupAssign";
+    tests = [
+      InitPartition, Always, TestRun (
+        [["mkfs_btrfs"; "/dev/sda1"; "";
""; "NOARG"; ""; "NOARG";
"NOARG"; ""; ""];
+         ["mount"; "/dev/sda1"; "/"];
+         ["btrfs_quota_enable"; "/"; "true"];
+         ["btrfs_qgroup_create"; "0/1000"; "/"];
+         ["btrfs_qgroup_create"; "1/1000"; "/"];
+         ["btrfs_qgroup_assign"; "0/1000";
"1/1000"; "/"]]), [];
+    ];
+    shortdesc = "add a qgroup to a parent qgroup";
+    longdesc = "\
+Add qgroup C<src> to parent qgroup C<dst>. This command can group
+several qgroups into a parent qgroup to share common limit." };
+
 ]

 (* Non-API meta-commands available only in guestfish.
diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR
index 84796bf..21fbd2e 100644
--- a/src/MAX_PROC_NR
+++ b/src/MAX_PROC_NR
@@ -1 +1 @@
-432
+433
--
1.9.3