/*
* file for managing the edac_device class of devices for EDAC
*
- * (C) 2007 SoftwareBitMaker(http://www.softwarebitmaker.com)
+ * (C) 2007 SoftwareBitMaker (http://www.softwarebitmaker.com)
+ *
* This file may be distributed under the terms of the
* GNU General Public License.
*
*/
#include <linux/ctype.h>
+#include <linux/module.h>
+#include <linux/slab.h>
#include "edac_core.h"
#include "edac_module.h"
#define to_edacdev(k) container_of(k, struct edac_device_ctl_info, kobj)
#define to_edacdev_attr(a) container_of(a, struct edacdev_attribute, attr)
-/************************** edac_device sysfs code and data **************/
/*
* Set of edac_device_ctl_info attribute store/show functions
/* edac_device_ctl_info specific attribute structure */
struct ctl_info_attribute {
struct attribute attr;
- ssize_t(*show) (struct edac_device_ctl_info *, char *);
- ssize_t(*store) (struct edac_device_ctl_info *, const char *, size_t);
+ ssize_t(*show) (struct edac_device_ctl_info *, char *);
+ ssize_t(*store) (struct edac_device_ctl_info *, const char *, size_t);
};
#define to_ctl_info(k) container_of(k, struct edac_device_ctl_info, kobj)
}
/* edac_dev file operations for an 'ctl_info' */
-static struct sysfs_ops device_ctl_info_ops = {
+static const struct sysfs_ops device_ctl_info_ops = {
.show = edac_dev_ctl_info_show,
.store = edac_dev_ctl_info_store
};
NULL,
};
-/* Main DEVICE kobject release() function */
+/*
+ * edac_device_ctrl_master_release
+ *
+ * called when the reference count for the 'main' kobj
+ * for a edac_device control struct reaches zero
+ *
+ * Reference count model:
+ * One 'main' kobject for each control structure allocated.
+ * That main kobj is initially set to one AND
+ * the reference count for the EDAC 'core' module is
+ * bumped by one, thus added 'keep in memory' dependency.
+ *
+ * Each new internal kobj (in instances and blocks) then
+ * bumps the 'main' kobject.
+ *
+ * When they are released their release functions decrement
+ * the 'main' kobj.
+ *
+ * When the main kobj reaches zero (0) then THIS function
+ * is called which then decrements the EDAC 'core' module.
+ * When the module reference count reaches zero then the
+ * module no longer has dependency on keeping the release
+ * function code in memory and module can be unloaded.
+ *
+ * This will support several control objects as well, each
+ * with its own 'main' kobj.
+ */
static void edac_device_ctrl_master_release(struct kobject *kobj)
{
- struct edac_device_ctl_info *edac_dev;
+ struct edac_device_ctl_info *edac_dev = to_edacdev(kobj);
- edac_dev = to_edacdev(kobj);
+ debugf4("%s() control index=%d\n", __func__, edac_dev->dev_idx);
- debugf1("%s()\n", __func__);
- complete(&edac_dev->kobj_complete);
+ /* decrement the EDAC CORE module ref count */
+ module_put(edac_dev->owner);
+
+ /* free the control struct containing the 'main' kobj
+ * passed in to this routine
+ */
+ kfree(edac_dev);
}
+/* ktype for the main (master) kobject */
static struct kobj_type ktype_device_ctrl = {
.release = edac_device_ctrl_master_release,
.sysfs_ops = &device_ctl_info_ops,
.default_attrs = (struct attribute **)device_ctrl_attr,
};
-/**************** edac_device main kobj ctor/dtor code *********************/
-
/*
- * edac_device_register_main_kobj
+ * edac_device_register_sysfs_main_kobj
*
* perform the high level setup for the new edac_device instance
*
* Return: 0 SUCCESS
* !0 FAILURE
*/
-static int edac_device_register_main_kobj(struct edac_device_ctl_info *edac_dev)
+int edac_device_register_sysfs_main_kobj(struct edac_device_ctl_info *edac_dev)
{
- int err = 0;
struct sysdev_class *edac_class;
+ int err;
debugf1("%s()\n", __func__);
/* get the /sys/devices/system/edac reference */
edac_class = edac_get_edac_class();
if (edac_class == NULL) {
- debugf1("%s() no edac_class error=%d\n", __func__, err);
- return err;
+ debugf1("%s() no edac_class error\n", __func__);
+ err = -ENODEV;
+ goto err_out;
}
/* Point to the 'edac_class' this instance 'reports' to */
/* Init the devices's kobject */
memset(&edac_dev->kobj, 0, sizeof(struct kobject));
- edac_dev->kobj.ktype = &ktype_device_ctrl;
- /* set this new device under the edac_class kobject */
- edac_dev->kobj.parent = &edac_class->kset.kobj;
+ /* Record which module 'owns' this control structure
+ * and bump the ref count of the module
+ */
+ edac_dev->owner = THIS_MODULE;
+
+ if (!try_module_get(edac_dev->owner)) {
+ err = -ENODEV;
+ goto err_out;
+ }
- /* generate sysfs "..../edac/<name>" */
- debugf1("%s() set name of kobject to: %s\n", __func__, edac_dev->name);
- err = kobject_set_name(&edac_dev->kobj, "%s", edac_dev->name);
- if (err)
- return err;
- err = kobject_register(&edac_dev->kobj);
+ /* register */
+ err = kobject_init_and_add(&edac_dev->kobj, &ktype_device_ctrl,
+ &edac_class->kset.kobj,
+ "%s", edac_dev->name);
if (err) {
debugf1("%s()Failed to register '.../edac/%s'\n",
__func__, edac_dev->name);
- return err;
+ goto err_kobj_reg;
}
+ kobject_uevent(&edac_dev->kobj, KOBJ_ADD);
- debugf1("%s() Registered '.../edac/%s' kobject\n",
+ /* At this point, to 'free' the control struct,
+ * edac_device_unregister_sysfs_main_kobj() must be used
+ */
+
+ debugf4("%s() Registered '.../edac/%s' kobject\n",
__func__, edac_dev->name);
return 0;
+
+ /* Error exit stack */
+err_kobj_reg:
+ module_put(edac_dev->owner);
+
+err_out:
+ return err;
}
/*
- * edac_device_unregister_main_kobj:
+ * edac_device_unregister_sysfs_main_kobj:
* the '..../edac/<name>' kobject
*/
-static void edac_device_unregister_main_kobj(struct edac_device_ctl_info
- *edac_dev)
+void edac_device_unregister_sysfs_main_kobj(
+ struct edac_device_ctl_info *edac_dev)
{
debugf0("%s()\n", __func__);
- debugf1("%s() name of kobject is: %s\n",
+ debugf4("%s() name of kobject is: %s\n",
__func__, kobject_name(&edac_dev->kobj));
- init_completion(&edac_dev->kobj_complete);
-
/*
* Unregister the edac device's kobject and
- * wait for reference count to reach 0.
+ * allow for reference count to reach 0 at which point
+ * the callback will be called to:
+ * a) module_put() this module
+ * b) 'kfree' the memory
*/
- kobject_unregister(&edac_dev->kobj);
- wait_for_completion(&edac_dev->kobj_complete);
+ kobject_put(&edac_dev->kobj);
}
-/*************** edac_dev -> instance information ***********/
+/* edac_dev -> instance information */
/*
* Set of low-level instance attribute show functions
debugf1("%s()\n", __func__);
+ /* map from this kobj to the main control struct
+ * and then dec the main kobj count
+ */
instance = to_instance(kobj);
- complete(&instance->kobj_complete);
+ kobject_put(&instance->ctl->kobj);
}
/* instance specific attribute structure */
struct instance_attribute {
struct attribute attr;
- ssize_t(*show) (struct edac_device_instance *, char *);
- ssize_t(*store) (struct edac_device_instance *, const char *, size_t);
+ ssize_t(*show) (struct edac_device_instance *, char *);
+ ssize_t(*store) (struct edac_device_instance *, const char *, size_t);
};
/* Function to 'show' fields from the edac_dev 'instance' structure */
}
/* edac_dev file operations for an 'instance' */
-static struct sysfs_ops device_instance_ops = {
+static const struct sysfs_ops device_instance_ops = {
.show = edac_dev_instance_show,
.store = edac_dev_instance_store
};
.default_attrs = (struct attribute **)device_instance_attr,
};
-/*************** edac_dev -> instance -> block information *********/
+/* edac_dev -> instance -> block information */
+
+#define to_block(k) container_of(k, struct edac_device_block, kobj)
+#define to_block_attr(a) \
+ container_of(a, struct edac_dev_sysfs_block_attribute, attr)
/*
* Set of low-level block attribute show functions
*/
-static ssize_t block_ue_count_show(struct edac_device_block *block, char *data)
+static ssize_t block_ue_count_show(struct kobject *kobj,
+ struct attribute *attr, char *data)
{
+ struct edac_device_block *block = to_block(kobj);
+
return sprintf(data, "%u\n", block->counters.ue_count);
}
-static ssize_t block_ce_count_show(struct edac_device_block *block, char *data)
+static ssize_t block_ce_count_show(struct kobject *kobj,
+ struct attribute *attr, char *data)
{
+ struct edac_device_block *block = to_block(kobj);
+
return sprintf(data, "%u\n", block->counters.ce_count);
}
-#define to_block(k) container_of(k, struct edac_device_block, kobj)
-#define to_block_attr(a) container_of(a,struct block_attribute,attr)
-
/* DEVICE block kobject release() function */
static void edac_device_ctrl_block_release(struct kobject *kobj)
{
debugf1("%s()\n", __func__);
+ /* get the container of the kobj */
block = to_block(kobj);
- complete(&block->kobj_complete);
+
+ /* map from 'block kobj' to 'block->instance->controller->main_kobj'
+ * now 'release' the block kobject
+ */
+ kobject_put(&block->instance->ctl->kobj);
}
-/* block specific attribute structure */
-struct block_attribute {
- struct attribute attr;
- ssize_t(*show) (struct edac_device_block *, char *);
- ssize_t(*store) (struct edac_device_block *, const char *, size_t);
-};
/* Function to 'show' fields from the edac_dev 'block' structure */
static ssize_t edac_dev_block_show(struct kobject *kobj,
struct attribute *attr, char *buffer)
{
- struct edac_device_block *block = to_block(kobj);
- struct block_attribute *block_attr = to_block_attr(attr);
+ struct edac_dev_sysfs_block_attribute *block_attr =
+ to_block_attr(attr);
if (block_attr->show)
- return block_attr->show(block, buffer);
+ return block_attr->show(kobj, attr, buffer);
return -EIO;
}
struct attribute *attr,
const char *buffer, size_t count)
{
- struct edac_device_block *block = to_block(kobj);
- struct block_attribute *block_attr = to_block_attr(attr);
+ struct edac_dev_sysfs_block_attribute *block_attr;
+
+ block_attr = to_block_attr(attr);
if (block_attr->store)
- return block_attr->store(block, buffer, count);
+ return block_attr->store(kobj, attr, buffer, count);
return -EIO;
}
/* edac_dev file operations for a 'block' */
-static struct sysfs_ops device_block_ops = {
+static const struct sysfs_ops device_block_ops = {
.show = edac_dev_block_show,
.store = edac_dev_block_store
};
#define BLOCK_ATTR(_name,_mode,_show,_store) \
-static struct block_attribute attr_block_##_name = { \
+static struct edac_dev_sysfs_block_attribute attr_block_##_name = { \
.attr = {.name = __stringify(_name), .mode = _mode }, \
.show = _show, \
.store = _store, \
BLOCK_ATTR(ue_count, S_IRUGO, block_ue_count_show, NULL);
/* list of edac_dev 'block' attributes */
-static struct block_attribute *device_block_attr[] = {
+static struct edac_dev_sysfs_block_attribute *device_block_attr[] = {
&attr_block_ce_count,
&attr_block_ue_count,
NULL,
.default_attrs = (struct attribute **)device_block_attr,
};
-/************** block ctor/dtor code ************/
+/* block ctor/dtor code */
/*
* edac_device_create_block
*/
static int edac_device_create_block(struct edac_device_ctl_info *edac_dev,
struct edac_device_instance *instance,
- int idx)
+ struct edac_device_block *block)
{
+ int i;
int err;
- struct edac_device_block *block;
-
- block = &instance->blocks[idx];
+ struct edac_dev_sysfs_block_attribute *sysfs_attrib;
+ struct kobject *main_kobj;
- debugf1("%s() Instance '%s' block[%d] '%s'\n",
- __func__, instance->name, idx, block->name);
+ debugf4("%s() Instance '%s' inst_p=%p block '%s' block_p=%p\n",
+ __func__, instance->name, instance, block->name, block);
+ debugf4("%s() block kobj=%p block kobj->parent=%p\n",
+ __func__, &block->kobj, &block->kobj.parent);
/* init this block's kobject */
memset(&block->kobj, 0, sizeof(struct kobject));
- block->kobj.parent = &instance->kobj;
- block->kobj.ktype = &ktype_block_ctrl;
- err = kobject_set_name(&block->kobj, "%s", block->name);
- if (err)
- return err;
+ /* bump the main kobject's reference count for this controller
+ * and this instance is dependant on the main
+ */
+ main_kobj = kobject_get(&edac_dev->kobj);
+ if (!main_kobj) {
+ err = -ENODEV;
+ goto err_out;
+ }
- err = kobject_register(&block->kobj);
+ /* Add this block's kobject */
+ err = kobject_init_and_add(&block->kobj, &ktype_block_ctrl,
+ &instance->kobj,
+ "%s", block->name);
if (err) {
- debugf1("%s()Failed to register instance '%s'\n",
+ debugf1("%s() Failed to register instance '%s'\n",
__func__, block->name);
- return err;
+ kobject_put(main_kobj);
+ err = -ENODEV;
+ goto err_out;
+ }
+
+ /* If there are driver level block attributes, then added them
+ * to the block kobject
+ */
+ sysfs_attrib = block->block_attributes;
+ if (sysfs_attrib && block->nr_attribs) {
+ for (i = 0; i < block->nr_attribs; i++, sysfs_attrib++) {
+
+ debugf4("%s() creating block attrib='%s' "
+ "attrib->%p to kobj=%p\n",
+ __func__,
+ sysfs_attrib->attr.name,
+ sysfs_attrib, &block->kobj);
+
+ /* Create each block_attribute file */
+ err = sysfs_create_file(&block->kobj,
+ &sysfs_attrib->attr);
+ if (err)
+ goto err_on_attrib;
+ }
}
+ kobject_uevent(&block->kobj, KOBJ_ADD);
return 0;
+
+ /* Error unwind stack */
+err_on_attrib:
+ kobject_put(&block->kobj);
+
+err_out:
+ return err;
}
/*
- * edac_device_delete_block(edac_dev,j);
+ * edac_device_delete_block(edac_dev,block);
*/
static void edac_device_delete_block(struct edac_device_ctl_info *edac_dev,
- struct edac_device_instance *instance,
- int idx)
+ struct edac_device_block *block)
{
- struct edac_device_block *block;
+ struct edac_dev_sysfs_block_attribute *sysfs_attrib;
+ int i;
- block = &instance->blocks[idx];
+ /* if this block has 'attributes' then we need to iterate over the list
+ * and 'remove' the attributes on this block
+ */
+ sysfs_attrib = block->block_attributes;
+ if (sysfs_attrib && block->nr_attribs) {
+ for (i = 0; i < block->nr_attribs; i++, sysfs_attrib++) {
- /* unregister this block's kobject */
- init_completion(&block->kobj_complete);
- kobject_unregister(&block->kobj);
- wait_for_completion(&block->kobj_complete);
+ /* remove each block_attrib file */
+ sysfs_remove_file(&block->kobj,
+ (struct attribute *) sysfs_attrib);
+ }
+ }
+
+ /* unregister this block's kobject, SEE:
+ * edac_device_ctrl_block_release() callback operation
+ */
+ kobject_put(&block->kobj);
}
-/************** instance ctor/dtor code ************/
+/* instance ctor/dtor code */
/*
* edac_device_create_instance
int i, j;
int err;
struct edac_device_instance *instance;
+ struct kobject *main_kobj;
instance = &edac_dev->instances[idx];
/* Init the instance's kobject */
memset(&instance->kobj, 0, sizeof(struct kobject));
- /* set this new device under the edac_device main kobject */
- instance->kobj.parent = &edac_dev->kobj;
- instance->kobj.ktype = &ktype_instance_ctrl;
+ instance->ctl = edac_dev;
- err = kobject_set_name(&instance->kobj, "%s", instance->name);
- if (err)
- return err;
+ /* bump the main kobject's reference count for this controller
+ * and this instance is dependant on the main
+ */
+ main_kobj = kobject_get(&edac_dev->kobj);
+ if (!main_kobj) {
+ err = -ENODEV;
+ goto err_out;
+ }
- err = kobject_register(&instance->kobj);
+ /* Formally register this instance's kobject under the edac_device */
+ err = kobject_init_and_add(&instance->kobj, &ktype_instance_ctrl,
+ &edac_dev->kobj, "%s", instance->name);
if (err != 0) {
debugf2("%s() Failed to register instance '%s'\n",
__func__, instance->name);
- return err;
+ kobject_put(main_kobj);
+ goto err_out;
}
- debugf1("%s() now register '%d' blocks for instance %d\n",
+ debugf4("%s() now register '%d' blocks for instance %d\n",
__func__, instance->nr_blocks, idx);
/* register all blocks of this instance */
for (i = 0; i < instance->nr_blocks; i++) {
- err = edac_device_create_block(edac_dev, instance, i);
+ err = edac_device_create_block(edac_dev, instance,
+ &instance->blocks[i]);
if (err) {
- for (j = 0; j < i; j++) {
- edac_device_delete_block(edac_dev, instance, j);
- }
- return err;
+ /* If any fail, remove all previous ones */
+ for (j = 0; j < i; j++)
+ edac_device_delete_block(edac_dev,
+ &instance->blocks[j]);
+ goto err_release_instance_kobj;
}
}
+ kobject_uevent(&instance->kobj, KOBJ_ADD);
- debugf1("%s() Registered instance %d '%s' kobject\n",
+ debugf4("%s() Registered instance %d '%s' kobject\n",
__func__, idx, instance->name);
return 0;
+
+ /* error unwind stack */
+err_release_instance_kobj:
+ kobject_put(&instance->kobj);
+
+err_out:
+ return err;
}
/*
static void edac_device_delete_instance(struct edac_device_ctl_info *edac_dev,
int idx)
{
- int i;
struct edac_device_instance *instance;
+ int i;
instance = &edac_dev->instances[idx];
/* unregister all blocks in this instance */
- for (i = 0; i < instance->nr_blocks; i++) {
- edac_device_delete_block(edac_dev, instance, i);
- }
+ for (i = 0; i < instance->nr_blocks; i++)
+ edac_device_delete_block(edac_dev, &instance->blocks[i]);
- /* unregister this instance's kobject */
- init_completion(&instance->kobj_complete);
- kobject_unregister(&instance->kobj);
- wait_for_completion(&instance->kobj_complete);
+ /* unregister this instance's kobject, SEE:
+ * edac_device_ctrl_instance_release() for callback operation
+ */
+ kobject_put(&instance->kobj);
}
/*
err = edac_device_create_instance(edac_dev, i);
if (err) {
/* unwind previous instances on error */
- for (j = 0; j < i; j++) {
+ for (j = 0; j < i; j++)
edac_device_delete_instance(edac_dev, j);
- }
return err;
}
}
int i;
/* iterate over creation of the instances */
- for (i = 0; i < edac_dev->nr_instances; i++) {
+ for (i = 0; i < edac_dev->nr_instances; i++)
edac_device_delete_instance(edac_dev, i);
- }
}
-/******************* edac_dev sysfs ctor/dtor code *************/
+/* edac_dev sysfs ctor/dtor code */
/*
- * edac_device_add_sysfs_attributes
+ * edac_device_add_main_sysfs_attributes
* add some attributes to this instance's main kobject
*/
-static int edac_device_add_sysfs_attributes(
+static int edac_device_add_main_sysfs_attributes(
struct edac_device_ctl_info *edac_dev)
{
- int err;
struct edac_dev_sysfs_attribute *sysfs_attrib;
+ int err = 0;
- /* point to the start of the array and iterate over it
- * adding each attribute listed to this mci instance's kobject
- */
sysfs_attrib = edac_dev->sysfs_attributes;
-
- while (sysfs_attrib->attr.name != NULL) {
- err = sysfs_create_file(&edac_dev->kobj,
+ if (sysfs_attrib) {
+ /* iterate over the array and create an attribute for each
+ * entry in the list
+ */
+ while (sysfs_attrib->attr.name != NULL) {
+ err = sysfs_create_file(&edac_dev->kobj,
(struct attribute*) sysfs_attrib);
- if (err) {
- return err;
- }
+ if (err)
+ goto err_out;
- sysfs_attrib++;
+ sysfs_attrib++;
+ }
}
- return 0;
+err_out:
+ return err;
+}
+
+/*
+ * edac_device_remove_main_sysfs_attributes
+ * remove any attributes to this instance's main kobject
+ */
+static void edac_device_remove_main_sysfs_attributes(
+ struct edac_device_ctl_info *edac_dev)
+{
+ struct edac_dev_sysfs_attribute *sysfs_attrib;
+
+ /* if there are main attributes, defined, remove them. First,
+ * point to the start of the array and iterate over it
+ * removing each attribute listed from this device's instance's kobject
+ */
+ sysfs_attrib = edac_dev->sysfs_attributes;
+ if (sysfs_attrib) {
+ while (sysfs_attrib->attr.name != NULL) {
+ sysfs_remove_file(&edac_dev->kobj,
+ (struct attribute *) sysfs_attrib);
+ sysfs_attrib++;
+ }
+ }
}
/*
* edac_device_create_sysfs() Constructor
*
- * Create a new edac_device kobject instance,
+ * accept a created edac_device control structure
+ * and 'export' it to sysfs. The 'main' kobj should already have been
+ * created. 'instance' and 'block' kobjects should be registered
+ * along with any 'block' attributes from the low driver. In addition,
+ * the main attributes (if any) are connected to the main kobject of
+ * the control structure.
*
* Return:
* 0 Success
int err;
struct kobject *edac_kobj = &edac_dev->kobj;
- /* register this instance's main kobj with the edac class kobj */
- err = edac_device_register_main_kobj(edac_dev);
- if (err)
- return err;
-
debugf0("%s() idx=%d\n", __func__, edac_dev->dev_idx);
- /* If the low level driver requests some sysfs entries
- * then go create them here
- */
- if (edac_dev->sysfs_attributes != NULL) {
- err = edac_device_add_sysfs_attributes(edac_dev);
- if (err) {
- debugf0("%s() failed to add sysfs attribs\n",
- __func__);
- goto err_unreg_object;
- }
+ /* go create any main attributes callers wants */
+ err = edac_device_add_main_sysfs_attributes(edac_dev);
+ if (err) {
+ debugf0("%s() failed to add sysfs attribs\n", __func__);
+ goto err_out;
}
/* create a symlink from the edac device
if (err) {
debugf0("%s() sysfs_create_link() returned err= %d\n",
__func__, err);
- goto err_unreg_object;
+ goto err_remove_main_attribs;
}
- debugf0("%s() calling create-instances, idx=%d\n",
- __func__, edac_dev->dev_idx);
-
- /* Create the first level instance directories */
+ /* Create the first level instance directories
+ * In turn, the nested blocks beneath the instances will
+ * be registered as well
+ */
err = edac_device_create_instances(edac_dev);
if (err) {
+ debugf0("%s() edac_device_create_instances() "
+ "returned err= %d\n", __func__, err);
goto err_remove_link;
}
+
+ debugf4("%s() create-instances done, idx=%d\n",
+ __func__, edac_dev->dev_idx);
+
return 0;
/* Error unwind stack */
/* remove the sym link */
sysfs_remove_link(&edac_dev->kobj, EDAC_DEVICE_SYMLINK);
-err_unreg_object:
- edac_device_unregister_main_kobj(edac_dev);
+err_remove_main_attribs:
+ edac_device_remove_main_sysfs_attributes(edac_dev);
+err_out:
return err;
}
/*
* edac_device_remove_sysfs() destructor
*
- * remove a edac_device instance
+ * given an edac_device struct, tear down the kobject resources
*/
void edac_device_remove_sysfs(struct edac_device_ctl_info *edac_dev)
{
debugf0("%s()\n", __func__);
- edac_device_delete_instances(edac_dev);
+ /* remove any main attributes for this device */
+ edac_device_remove_main_sysfs_attributes(edac_dev);
- /* remove the sym link */
+ /* remove the device sym link */
sysfs_remove_link(&edac_dev->kobj, EDAC_DEVICE_SYMLINK);
- /* unregister the instance's main kobj */
- edac_device_unregister_main_kobj(edac_dev);
+ /* walk the instance/block kobject tree, deconstructing it */
+ edac_device_delete_instances(edac_dev);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff