[Libguestfs] [PATCH v2 1/3] New API: btrfstune_seeding

Use btrfstune_seeding to enable or disable seeding. Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com&gt; --- daemon/btrfs.c | 28 ++++++++++++++++++++++++++++ generator/actions.ml | 17 +++++++++++++++++ src/MAX_PROC_NR | 2 +- 3 files changed, 46 insertions(+), 1 deletion(-) diff --git a/daemon/btrfs.c b/daemon/btrfs.c index 6b93973..d2d4492 100644 --- a/daemon/btrfs.c +++ b/daemon/btrfs.c @@ -1929,3 +1929,31 @@ error: free (ret); return NULL; } + +int +do_btrfstune_seeding (const char *device, int svalue) +{ + const size_t MAX_ARGS = 64; + const char *argv[MAX_ARGS]; + size_t i = 0; + CLEANUP_FREE char *err = NULL; + CLEANUP_FREE char *out = NULL; + int r; + const char *s_value = svalue ? "1" : "0"; + + ADD_ARG (argv, i, str_btrfstune); + ADD_ARG (argv, i, "-S"); + ADD_ARG (argv, i, s_value); + if (svalue == 0) + ADD_ARG (argv, i, "-f"); + ADD_ARG (argv, i, device); + ADD_ARG (argv, i, NULL); + + r = commandv (&out, &err, argv); + if (r == -1) { + reply_with_error ("%s: %s", device, err); + return -1; + } + + return 0; +} diff --git a/generator/actions.ml b/generator/actions.ml index c995787..cb67fc5 100644 --- a/generator/actions.ml +++ b/generator/actions.ml @@ -12475,6 +12475,23 @@ Show the status of a running or paused balance on a btrfs filesystem." }; longdesc = "\ Show status of running or finished scrub on a btrfs filesystem." }; + { defaults with + name = "btrfstune_seeding"; + style = RErr, [Device "device"; Bool "seeding"], []; + proc_nr = Some 450; + optional = Some "btrfs"; camel_name = "BTRFSTuneSeeding"; + tests = [ + InitPartition, Always, TestRun ( + [["mkfs_btrfs"; "/dev/sda1"; ""; ""; "NOARG"; ""; "NOARG"; "NOARG"; ""; ""]; + ["btrfstune_seeding"; "/dev/sda1"; "true"]; + ["btrfstune_seeding"; "/dev/sda1"; "false"]]), [] + ]; + + shortdesc = "enable or disable seeding of a btrfs device"; + longdesc = "\ +Enable seeding of a btrfs device, this will force a fs readonly +so that you can use it tto build other filesystems." }; + ] (* Non-API meta-commands available only in guestfish. diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR index 2b20fd0..29ba0df 100644 --- a/src/MAX_PROC_NR +++ b/src/MAX_PROC_NR @@ -1 +1 @@ -449 +450 -- 2.1.0