[Libguestfs] [PATCH 7/8] New API: btrfs_qgroup_create

btrfs_qgroup_create creates a new qgroup. Signed-off-by: Hu Tao <hutao(a)cn.fujitsu.com&gt; --- daemon/btrfs.c | 32 ++++++++++++++++++++++++++++++++ generator/actions.ml | 9 +++++++++ src/MAX_PROC_NR | 2 +- 3 files changed, 42 insertions(+), 1 deletion(-) diff --git a/daemon/btrfs.c b/daemon/btrfs.c index 033d460..dccaf5a 100644 --- a/daemon/btrfs.c +++ b/daemon/btrfs.c @@ -1120,3 +1120,35 @@ int do_btrfs_qgroup_limit (const char *subvolume, const char *size) return 0; } + +int do_btrfs_qgroup_create (const char *qgroupid, const char *subvolume) +{ + const size_t MAX_ARGS = 64; + const char *argv[MAX_ARGS]; + size_t i = 0; + CLEANUP_FREE char *subvolume_buf = NULL; + CLEANUP_FREE char *err = NULL; + CLEANUP_FREE char *out = NULL; + int r; + + subvolume_buf = sysroot_path (subvolume); + if (subvolume_buf == NULL) { + reply_with_perror ("malloc"); + return -1; + } + + ADD_ARG (argv, i, str_btrfs); + ADD_ARG (argv, i, "qgroup"); + ADD_ARG (argv, i, "create"); + ADD_ARG (argv, i, qgroupid); + ADD_ARG (argv, i, subvolume_buf); + ADD_ARG (argv, i, NULL); + + r = commandv (&out, &err, argv); + if (r == -1) { + reply_with_error ("%s: %s", subvolume, err); + return -1; + } + + return 0; +} diff --git a/generator/actions.ml b/generator/actions.ml index 5d64350..608ddf6 100644 --- a/generator/actions.ml +++ b/generator/actions.ml @@ -12082,6 +12082,15 @@ Trash all qgroup numbers and scan the metadata again with the current config." } Limit the size of a subvolume which's path is C<subvolume>. C<size> can have suffix of G, M, or K. " }; + { defaults with + name = "btrfs_qgroup_create"; + style = RErr, [String "qgroupid"; Pathname "subvolume"], []; + proc_nr = Some 431; + optional = Some "btrfs"; camel_name = "BTRFSQgroupCreate"; + shortdesc = "create a subvolume quota group"; + longdesc = "\ +Create a quota group (qgroup) for subvolume at C<subvolume>." }; + ] (* Non-API meta-commands available only in guestfish. diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR index c15fb93..ed4f162 100644 --- a/src/MAX_PROC_NR +++ b/src/MAX_PROC_NR @@ -1 +1 @@ -430 +431 -- 1.9.3