From: Wen Congyang <wency@cn.fujitsu.com>
To: Wei Liu <wei.liu2@citrix.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>,
Ian Campbell <ian.campbell@citrix.com>,
xen devel <xen-devel@lists.xen.org>
Subject: Re: [PATCH v4 3/3] libxl: rename checkpointed_stream to stream_type
Date: Wed, 16 Mar 2016 09:08:52 +0800 [thread overview]
Message-ID: <56E8B224.4080900@cn.fujitsu.com> (raw)
In-Reply-To: <20160315125438.GD31759@citrix.com>
On 03/15/2016 08:54 PM, Wei Liu wrote:
> On Tue, Mar 15, 2016 at 09:58:37AM +0800, Wen Congyang wrote:
>> Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
>> ---
>> v3->v4: Remove the new macro, and updte the macro LIBXL_HAVE_CHECKPOINTED_STREAM
>> tools/libxl/libxl.c | 4 ++--
>> tools/libxl/libxl.h | 4 +++-
>> tools/libxl/libxl_create.c | 4 ++--
>> tools/libxl/libxl_dom_save.c | 6 +++---
>> tools/libxl/libxl_internal.h | 2 +-
>> tools/libxl/libxl_save_callout.c | 4 ++--
>> tools/libxl/libxl_stream_read.c | 4 ++--
>> tools/libxl/libxl_stream_write.c | 2 +-
>> tools/libxl/libxl_types.idl | 2 +-
>> tools/libxl/xl_cmdimpl.c | 16 ++++++++--------
>> 10 files changed, 25 insertions(+), 23 deletions(-)
>>
>> diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
>> index 93e228d..7579dd2 100644
>> --- a/tools/libxl/libxl.c
>> +++ b/tools/libxl/libxl.c
>> @@ -876,7 +876,7 @@ int libxl_domain_remus_start(libxl_ctx *ctx, libxl_domain_remus_info *info,
>> dss->live = 1;
>> dss->debug = 0;
>> dss->remus = info;
>> - dss->checkpointed_stream = LIBXL_CHECKPOINTED_STREAM_REMUS;
>> + dss->stream_type = LIBXL_CHECKPOINTED_STREAM_REMUS;
>>
>> assert(info);
>>
>> @@ -937,7 +937,7 @@ int libxl_domain_suspend(libxl_ctx *ctx, uint32_t domid, int fd, int flags,
>> dss->type = type;
>> dss->live = flags & LIBXL_SUSPEND_LIVE;
>> dss->debug = flags & LIBXL_SUSPEND_DEBUG;
>> - dss->checkpointed_stream = LIBXL_CHECKPOINTED_STREAM_NONE;
>> + dss->stream_type = LIBXL_CHECKPOINTED_STREAM_NONE;
>>
>> rc = libxl__fd_flags_modify_save(gc, dss->fd,
>> ~(O_NONBLOCK|O_NDELAY), 0,
>> diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
>> index f9e3ef5..c55094b 100644
>> --- a/tools/libxl/libxl.h
>> +++ b/tools/libxl/libxl.h
>> @@ -879,7 +879,9 @@ void libxl_mac_copy(libxl_ctx *ctx, libxl_mac *dst, libxl_mac *src);
>> /*
>> * LIBXL_HAVE_CHECKPOINTED_STREAM
>> *
>> - * If this is defined, then libxl_checkpointed_stream exists.
>> + * If this is defined, then libxl_checkpointed_stream exists, and the
>> + * libxl_domain_create_restore() interface's parameter checkpointed_stream
>> + * is renamed to stream_type
>> */
>> #define LIBXL_HAVE_CHECKPOINTED_STREAM 1
>
> I just realised this patch have not provided compatibility shim for
> older version of LIBXL_API.
>
> It now breaks backward compatibility because it changes existing API.
> It's my fault for not observing this earlier, sorry.
>
> On the other hand, I don't think this patch is strictly necessary.
> Andrew's original complain was about libxc not exporting XC_MIG_* types.
> I think libxl can function just fine as is with the old name.
>
> So if you really wish to change the name of that field, I'm afraid
> compatibility shim for all functions that accept
> libxl_domain_restore_params is required.
>
> I suggest we drop this patch for now and focus on core COLO
> functionality, what do you think?
It is OK to drop this patch.
Thanks
Wen Congyang
>
> Wei.
>
>
> .
>
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prev parent reply other threads:[~2016-03-16 1:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-15 1:58 [PATCH v4 1/3] libxc: move migration_stream's definition to xenguest.h Wen Congyang
2016-03-15 1:58 ` [PATCH v4 2/3] tools: change checkpointed_stream's type from int to xc_migration_stream_t Wen Congyang
2016-03-17 13:53 ` Ian Jackson
2016-03-15 1:58 ` [PATCH v4 3/3] libxl: rename checkpointed_stream to stream_type Wen Congyang
2016-03-15 12:54 ` Wei Liu
2016-03-16 1:08 ` Wen Congyang [this message]
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