[Libguestfs] [PATCH 5/8] New API: btrfs_quota_rescan
btrfs_quota_rescan trashs all qgroup numbers and scans the metadata
again with the current config.
Signed-off-by: Hu Tao <hutao(a)cn.fujitsu.com>
---
daemon/btrfs.c | 31 +++++++++++++++++++++++++++++++
generator/actions.ml | 9 +++++++++
src/MAX_PROC_NR | 2 +-
3 files changed, 41 insertions(+), 1 deletion(-)
diff --git a/daemon/btrfs.c b/daemon/btrfs.c
index 5fcb85b..6918d4f 100644
--- a/daemon/btrfs.c
+++ b/daemon/btrfs.c
@@ -1057,3 +1057,34 @@ int do_btrfs_quota_disable (const char *path)
return 0;
}
+
+int do_btrfs_quota_rescan (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, "quota");
+ ADD_ARG (argv, i, "rescan");
+ 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 ab1a07a..f24d5d7 100644
--- a/generator/actions.ml
+++ b/generator/actions.ml
@@ -12063,6 +12063,15 @@ Enable subvolume quota support for filesystem which contains
C<path>." };
longdesc = "\
Disable subvolume quota support for filesystem which contains C<path>." };
+ { defaults with
+ name = "btrfs_quota_rescan";
+ style = RErr, [Pathname "path"], [];
+ proc_nr = Some 429;
+ optional = Some "btrfs"; camel_name = "BTRFSQuotaRescan";
+ shortdesc = "trash all qgroup numbers and scan the metadata again with the
current config";
+ longdesc = "\
+Trash all qgroup numbers and scan the metadata again with the current config." };
+
]
(* Non-API meta-commands available only in guestfish.
diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR
index 43d371a..3560666 100644
--- a/src/MAX_PROC_NR
+++ b/src/MAX_PROC_NR
@@ -1 +1 @@
-428
+429
--
1.9.3