[libvirt] [PATCH 2/2] libxl: use init and dispose functions with libxl_physinfo
Joao Martins
joao.m.martins at oracle.com
Wed Feb 8 13:28:16 UTC 2017
On 02/02/2017 10:39 PM, Jim Fehlig wrote:
> The typical pattern when calling libxl functions that populate a
> structure is
>
> libxl_foo foo;
> libxl_foo_init(&foo);
> libxl_get_foo(ctx, &foo);
> ...
> libxl_foo_dispose(&foo);
>
> Fix several instances of libxl_physinfo missing the init and
> dispose calls.
Indeed,
>
> Signed-off-by: Jim Fehlig <jfehlig at suse.com>
Reviewed-by: Joao Martins <joao.m.martins at oracle.com>
See also one comment/nit below, perhaps one libxl_physinfo_init could be moved
slightly up..
> [...]
> diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c
> index 3a69720..8951bef 100644
> --- a/src/libxl/libxl_driver.c
> +++ b/src/libxl/libxl_driver.c
> @@ -4286,6 +4286,7 @@ libxlNodeGetFreeMemory(virConnectPtr conn)
> if (virNodeGetFreeMemoryEnsureACL(conn) < 0)
> goto cleanup;
>
> + libxl_physinfo_init(&phy_info);
.. namely here? That is before virNodeGetFreeMemoryEnsureACL.
Not that it matters much, as init/dispose in this case just zeroes out phy_info
region. But just perhaps consistency as you would end disposing an non
initialized object.
> if (libxl_get_physinfo(cfg->ctx, &phy_info)) {
> virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
> _("libxl_get_physinfo_info failed"));
> @@ -4295,6 +4296,7 @@ libxlNodeGetFreeMemory(virConnectPtr conn)
> ret = phy_info.free_pages * cfg->verInfo->pagesize;
>
> cleanup:
> + libxl_physinfo_dispose(&phy_info);
> virObjectUnref(cfg);
> return ret;
> }
>
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