-----Original Message-----
From: Michal Privoznik [mailto:mprivozn@redhat.com]
Sent: Tuesday, July 10, 2018 9:27 PM
To: shichangkuo (Cloud); 'libvir-list(a)redhat.com'; 'jferlan(a)redhat.com'
Subject: Re: [libvirt] [PATCH] storage: prefer using newDef to save configfile
On 07/10/2018 09:15 AM, Shichangkuo wrote:
> When re-defining an active storage pool, the configfile has not
> changed. This issue was introduced by bfcd8fc9,
> storage: Use virStoragePoolObjGetDef accessor for driver. So we prefer using
newDef to save configfile.
>
> Signed-off-by: Changkuo Shi <shi.changkuo(a)h3c.com>
> ---
> src/storage/storage_driver.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
The commit message seems to have long lines. Also, next time please send patch
rebased to the latest HEAD. I had to go all the way down to v4.4.0 only to apply this
patch cleanly.
Hi, Michal
Thanks for you reply. I will change the commit message format and use the latest HEAD
in patch V1.
>
> diff --git a/src/storage/storage_driver.c
> b/src/storage/storage_driver.c index b0de96d..fab3c5b 100644
> --- a/src/storage/storage_driver.c
> +++ b/src/storage/storage_driver.c
> @@ -844,13 +844,14 @@ storagePoolDefineXML(virConnectPtr conn,
>
> if (!(obj = virStoragePoolObjAssignDef(driver->pools, newDef)))
> goto cleanup;
> - newDef = NULL;
> + newDef = virStoragePoolObjGetNewDef(obj);
> def = virStoragePoolObjGetDef(obj);
>
> - if (virStoragePoolObjSaveDef(driver, obj, def) < 0) {
> + if (virStoragePoolObjSaveDef(driver, obj, newDef ? newDef : def)
> + < 0) {
Why wouldn't newDef be set at this point? It is always going to be a non-NULL
pointer.
I think the purpose of bfcd8fc9 'storage: Use virStoragePoolObjGetDef accessor
for driver' is avoiding to use newDef directly.
so I use virStoragePoolObjGetNewDef to set newDef again, and it will be NULL when we
define a storage pool at the first time or the pool is inactive already.
Also, the rest of the function is a bit misleading now.
Long story short, I think the proper solution is to:
s/virStoragePoolObjGetDef/virStoragePoolObjGetNewDef/
actually and do nothing more.
Sorry, I can't follow you, can you explain in more detail?
Changkuo
Michal
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