mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/
synced 2026-04-03 23:37:40 -04:00
bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
127 lines
2.8 KiB
C
127 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright(c) 2013-2016 Intel Corporation. All rights reserved.
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*/
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#include <linux/device.h>
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#include <linux/sizes.h>
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#include <linux/slab.h>
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#include <linux/mm.h>
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#include "nd-core.h"
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#include "pfn.h"
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#include "nd.h"
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static void nd_dax_release(struct device *dev)
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{
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struct nd_region *nd_region = to_nd_region(dev->parent);
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struct nd_dax *nd_dax = to_nd_dax(dev);
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struct nd_pfn *nd_pfn = &nd_dax->nd_pfn;
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dev_dbg(dev, "trace\n");
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nd_detach_ndns(dev, &nd_pfn->ndns);
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ida_free(&nd_region->dax_ida, nd_pfn->id);
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kfree(nd_pfn->uuid);
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kfree(nd_dax);
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}
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struct nd_dax *to_nd_dax(struct device *dev)
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{
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struct nd_dax *nd_dax = container_of(dev, struct nd_dax, nd_pfn.dev);
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WARN_ON(!is_nd_dax(dev));
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return nd_dax;
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}
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EXPORT_SYMBOL(to_nd_dax);
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static const struct device_type nd_dax_device_type = {
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.name = "nd_dax",
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.release = nd_dax_release,
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.groups = nd_pfn_attribute_groups,
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};
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bool is_nd_dax(const struct device *dev)
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{
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return dev ? dev->type == &nd_dax_device_type : false;
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}
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EXPORT_SYMBOL(is_nd_dax);
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static struct nd_dax *nd_dax_alloc(struct nd_region *nd_region)
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{
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struct nd_pfn *nd_pfn;
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struct nd_dax *nd_dax;
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struct device *dev;
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nd_dax = kzalloc_obj(*nd_dax);
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if (!nd_dax)
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return NULL;
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nd_pfn = &nd_dax->nd_pfn;
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nd_pfn->id = ida_alloc(&nd_region->dax_ida, GFP_KERNEL);
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if (nd_pfn->id < 0) {
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kfree(nd_dax);
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return NULL;
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}
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dev = &nd_pfn->dev;
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dev_set_name(dev, "dax%d.%d", nd_region->id, nd_pfn->id);
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dev->type = &nd_dax_device_type;
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dev->parent = &nd_region->dev;
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return nd_dax;
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}
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struct device *nd_dax_create(struct nd_region *nd_region)
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{
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struct device *dev = NULL;
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struct nd_dax *nd_dax;
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if (!is_memory(&nd_region->dev))
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return NULL;
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nd_dax = nd_dax_alloc(nd_region);
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if (nd_dax)
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dev = nd_pfn_devinit(&nd_dax->nd_pfn, NULL);
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nd_device_register(dev);
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return dev;
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}
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int nd_dax_probe(struct device *dev, struct nd_namespace_common *ndns)
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{
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int rc;
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struct nd_dax *nd_dax;
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struct device *dax_dev;
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struct nd_pfn *nd_pfn;
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struct nd_pfn_sb *pfn_sb;
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struct nd_region *nd_region = to_nd_region(ndns->dev.parent);
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if (ndns->force_raw)
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return -ENODEV;
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switch (ndns->claim_class) {
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case NVDIMM_CCLASS_NONE:
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case NVDIMM_CCLASS_DAX:
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break;
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default:
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return -ENODEV;
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}
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scoped_guard(nvdimm_bus, &ndns->dev) {
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nd_dax = nd_dax_alloc(nd_region);
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dax_dev = nd_dax_devinit(nd_dax, ndns);
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if (!dax_dev)
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return -ENOMEM;
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}
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pfn_sb = devm_kmalloc(dev, sizeof(*pfn_sb), GFP_KERNEL);
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nd_pfn = &nd_dax->nd_pfn;
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nd_pfn->pfn_sb = pfn_sb;
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rc = nd_pfn_validate(nd_pfn, DAX_SIG);
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dev_dbg(dev, "dax: %s\n", rc == 0 ? dev_name(dax_dev) : "<none>");
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if (rc < 0) {
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nd_detach_ndns(dax_dev, &nd_pfn->ndns);
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put_device(dax_dev);
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} else
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nd_device_register(dax_dev);
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return rc;
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}
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EXPORT_SYMBOL(nd_dax_probe);
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