Re: [Libguestfs] [PATCH 2/4] New API: btrfstune_S_disable

-----Original Message----- From: Richard W.M. Jones [mailto:rjones@redhat.com] Sent: Friday, February 27, 2015 9:40 PM To: Chen, Hanxiao/陈 晗霄 Cc: libguestfs(a)redhat.com Subject: Re: [Libguestfs] [PATCH 2/4] New API: btrfstune_S_disable On Sat, Feb 21, 2015 at 08:23:19PM +0800, Chen Hanxiao wrote: > Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com&gt; > --- > daemon/btrfs.c | 26 ++++++++++++++++++++++++++ > generator/actions.ml | 18 ++++++++++++++++++ > src/MAX_PROC_NR | 2 +- > 3 files changed, 45 insertions(+), 1 deletion(-) > > diff --git a/daemon/btrfs.c b/daemon/btrfs.c > index c94c11a..a129e2e 100644 > --- a/daemon/btrfs.c > +++ b/daemon/btrfs.c > @@ -2115,3 +2115,29 @@ do_btrfstune_S_enable (const char *device) > > return 0; > } > + > +int > +do_btrfstune_S_disable (const char *device) > +{ > + 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; > + > + ADD_ARG (argv, i, str_btrfstune); > + ADD_ARG (argv, i, "-S"); > + ADD_ARG (argv, i, "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 6dccb5c..3c906a4 100644 > --- a/generator/actions.ml > +++ b/generator/actions.ml > @@ -12547,6 +12547,24 @@ Get path on a btrfs filesystem for the logical address." }; > Enable seeding of a btrfs device, this will force a fs readonly > so that you can use it tto build other filesystems." }; > > + { defaults with > + name = "btrfstune_S_disable"; > + style = RErr, [Device "device"], []; > + proc_nr = Some 455; > + optional = Some "btrfs"; camel_name = "BTRFSTuneSDisable"; > + tests = [ > + InitPartition, Always, TestRun ( > + [["mkfs_btrfs"; "/dev/sda1"; ""; ""; "NOARG"; ""; "NOARG"; "NOARG"; ""; ""]; > + ["btrfstune_S_enable"; "/dev/sda1"]; > + ["btrfstune_S_disable"; "/dev/sda1"]]), [] > + ]; > + > + shortdesc = "disable seeding of a btrfs device"; > + longdesc = "\ > + This will disable seeding of a btrfs device. > + Warning: This is dangerous, clearing the seeding flag > + may cause the derived device not to be mountable!" }; > + Sorry for the delayed reply. How do you feel about combining btrfstune_S_enable & btrfstune_S_disable into a single call: name = "btrfstune_seeding"; style = RErr, [Device "device", Bool "enable"], []; where you can enable or disable by setting the boolean?

The two patches look otherwise fine to me. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 100 libraries supported. http://fedoraproject.org/wiki/MinGW