Release 4.14 drivers/nvdimm/dimm.c
/*
* Copyright(c) 2013-2015 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/vmalloc.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/sizes.h>
#include <linux/ndctl.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/nd.h>
#include "label.h"
#include "nd.h"
static int nvdimm_probe(struct device *dev)
{
struct nvdimm_drvdata *ndd;
int rc;
rc = nvdimm_check_config_data(dev);
if (rc) {
/* not required for non-aliased nvdimm, ex. NVDIMM-N */
if (rc == -ENOTTY)
rc = 0;
return rc;
}
ndd = kzalloc(sizeof(*ndd), GFP_KERNEL);
if (!ndd)
return -ENOMEM;
dev_set_drvdata(dev, ndd);
ndd->dpa.name = dev_name(dev);
ndd->ns_current = -1;
ndd->ns_next = -1;
ndd->dpa.start = 0;
ndd->dpa.end = -1;
ndd->dev = dev;
get_device(dev);
kref_init(&ndd->kref);
rc = nvdimm_init_nsarea(ndd);
if (rc == -EACCES)
nvdimm_set_locked(dev);
if (rc)
goto err;
rc = nvdimm_init_config_data(ndd);
if (rc)
goto err;
dev_dbg(dev, "config data size: %d\n", ndd->nsarea.config_size);
nvdimm_bus_lock(dev);
ndd->ns_current = nd_label_validate(ndd);
ndd->ns_next = nd_label_next_nsindex(ndd->ns_current);
nd_label_copy(ndd, to_next_namespace_index(ndd),
to_current_namespace_index(ndd));
rc = nd_label_reserve_dpa(ndd);
if (ndd->ns_current >= 0)
nvdimm_set_aliasing(dev);
nvdimm_bus_unlock(dev);
if (rc)
goto err;
return 0;
err:
put_ndd(ndd);
return rc;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dan J Williams | 247 | 89.82% | 5 | 83.33% |
| Toshi Kani | 28 | 10.18% | 1 | 16.67% |
| Total | 275 | 100.00% | 6 | 100.00% |
static int nvdimm_remove(struct device *dev)
{
struct nvdimm_drvdata *ndd = dev_get_drvdata(dev);
if (!ndd)
return 0;
nvdimm_bus_lock(dev);
dev_set_drvdata(dev, NULL);
nvdimm_bus_unlock(dev);
put_ndd(ndd);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dan J Williams | 46 | 85.19% | 3 | 75.00% |
| Toshi Kani | 8 | 14.81% | 1 | 25.00% |
| Total | 54 | 100.00% | 4 | 100.00% |
static struct nd_device_driver nvdimm_driver = {
.probe = nvdimm_probe,
.remove = nvdimm_remove,
.drv = {
.name = "nvdimm",
},
.type = ND_DRIVER_DIMM,
};
int __init nvdimm_init(void)
{
return nd_driver_register(&nvdimm_driver);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dan J Williams | 15 | 100.00% | 1 | 100.00% |
| Total | 15 | 100.00% | 1 | 100.00% |
void nvdimm_exit(void)
{
driver_unregister(&nvdimm_driver.drv);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dan J Williams | 15 | 100.00% | 1 | 100.00% |
| Total | 15 | 100.00% | 1 | 100.00% |
MODULE_ALIAS_ND_DEVICE(ND_DEVICE_DIMM);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dan J Williams | 391 | 91.57% | 5 | 83.33% |
| Toshi Kani | 36 | 8.43% | 1 | 16.67% |
| Total | 427 | 100.00% | 6 | 100.00% |
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