[Libguestfs] [PATCH 2/2] NEW API: add new api btrfs-tune for seeding device

[Wanlong Gao]

Add the NEW API btrfs-tune to support the seeding-device feature
for btrfs.

Signed-off-by: Wanlong Gao <gaowanlong at cn.fujitsu.com>
---
 daemon/btrfs.c                 |   19 +++++++++++++++++++
 generator/generator_actions.ml |   10 ++++++++++
 src/MAX_PROC_NR                |    2 +-
 3 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/daemon/btrfs.c b/daemon/btrfs.c
index b0218bc..c5dfd48 100644
--- a/daemon/btrfs.c
+++ b/daemon/btrfs.c
@@ -600,3 +600,22 @@ do_btrfs_device_delete (char *const *devices, const char *fs)
 
   return 0;
 }
+
+int
+do_btrfs_tune (int svalue, const char *device)
+{
+  char *err;
+  int r;
+
+  const char *s_value = svalue ? "1" : "0";
+
+  r = commandr (NULL, &err, "btrfstune", "-S", s_value, device, NULL);
+  if (r == -1) {
+    reply_with_error ("%s: %s", device, err);
+    free (err);
+    return -1;
+  }
+
+  free (err);
+  return r;
+}
diff --git a/generator/generator_actions.ml b/generator/generator_actions.ml
index 6948dab..b898c7a 100644
--- a/generator/generator_actions.ml
+++ b/generator/generator_actions.ml
@@ -7222,6 +7222,16 @@ mounted at C<fs>.  If C<devices> is an empty list, this does nothing.");
 Remove the C<devices> from the btrfs filesystem mounted at C<fs>.
 If C<devices> is an empty list, this does nothing.");
 
+  ("btrfs_tune", (RErr, [Bool "svalue"; Device "device"], []), 331, [],
+   [InitPartition, IfAvailable "btrfs", TestRun (
+     [["mkfs_btrfs"; "/dev/sda1"; ""; ""; "NOARG"; ""; "NOARG"; "NOARG"; ""; ""];
+      ["btrfs_tune"; "true"; "/dev/sda1"];
+      ["btrfs_tune"; "false"; "/dev/sda1"]])],
+   "enable/disable seeding feature of device",
+   "\
+Enable or disable the seeding feature of device which with btrfs
+filesystem on it.");
+
 ]
 
 let all_functions = non_daemon_functions @ daemon_functions
diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR
index db2cef5..ec6cab0 100644
--- a/src/MAX_PROC_NR
+++ b/src/MAX_PROC_NR
@@ -1 +1 @@
-330
+331
-- 
1.7.10