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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v1 04/12] libxl: pack hotplug related variables
Create a new struct to hold hotplug related variables that are
scattered in libxl__ao_device. We will later expand the number of
hotplug related variables, so it's best to have them packed
Signed-off-by: Roger Pau Monnà <roger.pau@xxxxxxxxxx>
Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
tools/libxl/libxl_device.c | 6 +++---
tools/libxl/libxl_internal.h | 15 ++++++++++-----
tools/libxl/libxl_linux.c | 10 +++++-----
tools/libxl/libxl_netbsd.c | 4 ++--
4 files changed, 20 insertions(+), 15 deletions(-)
diff --git a/tools/libxl/libxl_device.c b/tools/libxl/libxl_device.c
index eeea9d9..044cac5 100644
--- a/tools/libxl/libxl_device.c
+++ b/tools/libxl/libxl_device.c
@@ -409,7 +409,7 @@ void libxl__prepare_ao_device(libxl__ao *ao,
libxl__ao_device *aodev)
aodev->ao = ao;
aodev->rc = 0;
aodev->dev = NULL;
- aodev->num_exec = 0;
+ aodev->hotplug.num_exec = 0;
/* Initialize timer for QEMU Bodge and hotplug execution */
libxl__ev_time_init(&aodev->timeout);
aodev->active = 1;
@@ -892,7 +892,7 @@ static void device_hotplug(libxl__egc *egc,
libxl__ao_device *aodev)
* and return the necessary args/env vars for execution */
hotplug = libxl__get_hotplug_script_info(gc, aodev->dev, &args, &env,
aodev->action,
- aodev->num_exec);
+ &aodev->hotplug);
switch (hotplug) {
case 0:
/* no hotplug script to execute */
@@ -994,7 +994,7 @@ static void device_hotplug_child_death_cb(libxl__egc *egc,
* If no more executions are needed, device_hotplug will call
* device_hotplug_done breaking the loop.
*/
- aodev->num_exec++;
+ aodev->hotplug.num_exec++;
device_hotplug(egc, aodev);
return;
diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index f127f8a..d69d819 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -1831,6 +1831,7 @@ _hidden const char *libxl__run_dir_path(void);
typedef struct libxl__ao_device libxl__ao_device;
typedef struct libxl__multidev libxl__multidev;
+typedef struct libxl__hotplug libxl__hotplug;
typedef void libxl__device_callback(libxl__egc*, libxl__ao_device*);
/* This functions sets the necessary libxl__ao_device struct values to use
@@ -1849,6 +1850,10 @@ typedef void libxl__device_callback(libxl__egc*,
libxl__ao_device*);
*/
_hidden void libxl__prepare_ao_device(libxl__ao *ao, libxl__ao_device *aodev);
+struct libxl__hotplug {
+ int num_exec;
+};
+
struct libxl__ao_device {
/* filled in by user */
libxl__ao *ao;
@@ -1867,7 +1872,7 @@ struct libxl__ao_device {
libxl__ev_time timeout;
/* device hotplug execution */
const char *what;
- int num_exec;
+ libxl__hotplug hotplug;
libxl__ev_child child;
};
@@ -2048,18 +2053,18 @@ _hidden void libxl__initiate_device_remove(libxl__egc
*egc,
* 0: No need to execute hotplug script
* 1: Execute hotplug script
*
- * The last parameter, "num_exec" refeers to the number of times hotplug
- * scripts have been called for this device.
+ * The last parameter, libxl__hotplug contains information related to hotplug
+ * execution.
*
* The main body of libxl will, for each device, keep calling
* libxl__get_hotplug_script_info, with incrementing values of
- * num_exec, and executing the resulting script accordingly,
+ * hotplug->num_exec, and executing the resulting script accordingly,
* until libxl__get_hotplug_script_info returns<=0.
*/
_hidden int libxl__get_hotplug_script_info(libxl__gc *gc, libxl__device *dev,
char ***args, char ***env,
libxl__device_action action,
- int num_exec);
+ libxl__hotplug *hotplug);
/*----- local disk attach: attach a disk locally to run the bootloader -----*/
diff --git a/tools/libxl/libxl_linux.c b/tools/libxl/libxl_linux.c
index 1ef13c0..531bc7e 100644
--- a/tools/libxl/libxl_linux.c
+++ b/tools/libxl/libxl_linux.c
@@ -227,7 +227,7 @@ error:
int libxl__get_hotplug_script_info(libxl__gc *gc, libxl__device *dev,
char ***args, char ***env,
libxl__device_action action,
- int num_exec)
+ libxl__hotplug *hotplug)
{
char *disable_udev = libxl__xs_read(gc, XBT_NULL, DISABLE_UDEV_PATH);
int rc;
@@ -240,7 +240,7 @@ int libxl__get_hotplug_script_info(libxl__gc *gc,
libxl__device *dev,
switch (dev->backend_kind) {
case LIBXL__DEVICE_KIND_VBD:
- if (num_exec != 0) {
+ if (hotplug->num_exec != 0) {
rc = 0;
goto out;
}
@@ -251,12 +251,12 @@ int libxl__get_hotplug_script_info(libxl__gc *gc,
libxl__device *dev,
* If domain has a stubdom we don't have to execute hotplug scripts
* for emulated interfaces
*/
- if ((num_exec > 1) ||
- (libxl_get_stubdom_id(CTX, dev->domid) && num_exec)) {
+ if ((hotplug->num_exec > 1) ||
+ (libxl_get_stubdom_id(CTX, dev->domid) && hotplug->num_exec)) {
rc = 0;
goto out;
}
- rc = libxl__hotplug_nic(gc, dev, args, env, action, num_exec);
+ rc = libxl__hotplug_nic(gc, dev, args, env, action, hotplug->num_exec);
break;
default:
/* No need to execute any hotplug scripts */
diff --git a/tools/libxl/libxl_netbsd.c b/tools/libxl/libxl_netbsd.c
index 0ad69af..fa5e418 100644
--- a/tools/libxl/libxl_netbsd.c
+++ b/tools/libxl/libxl_netbsd.c
@@ -62,13 +62,13 @@ out:
int libxl__get_hotplug_script_info(libxl__gc *gc, libxl__device *dev,
char ***args, char ***env,
libxl__device_action action,
- int num_exec)
+ libxl__hotplug *hotplug)
{
char *disable_udev = libxl__xs_read(gc, XBT_NULL, DISABLE_UDEV_PATH);
int rc;
/* Check if we have to run hotplug scripts */
- if (!disable_udev || num_exec > 0) {
+ if (!disable_udev || hotplug->num_exec > 0) {
rc = 0;
goto out;
}
--
1.7.7.5 (Apple Git-26)
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