diff options
Diffstat (limited to 'drivers/dax')
| -rw-r--r-- | drivers/dax/dax-private.h | 3 | ||||
| -rw-r--r-- | drivers/dax/kmem.c | 20 |
2 files changed, 7 insertions, 16 deletions
diff --git a/drivers/dax/dax-private.h b/drivers/dax/dax-private.h index 6779f683671d..12a2dbc43b40 100644 --- a/drivers/dax/dax-private.h +++ b/drivers/dax/dax-private.h @@ -42,8 +42,6 @@ struct dax_region { * @dev - device core * @pgmap - pgmap for memmap setup / lifetime (driver owned) * @range: resource range for the instance - * @dax_mem_res: physical address range of hotadded DAX memory - * @dax_mem_name: name for hotadded DAX memory via add_memory_driver_managed() */ struct dev_dax { struct dax_region *region; @@ -52,7 +50,6 @@ struct dev_dax { struct device dev; struct dev_pagemap *pgmap; struct range range; - struct resource *dax_kmem_res; }; static inline u64 range_len(struct range *range) diff --git a/drivers/dax/kmem.c b/drivers/dax/kmem.c index 6fe2cb1c5f7c..e56fc688bdc5 100644 --- a/drivers/dax/kmem.c +++ b/drivers/dax/kmem.c @@ -33,7 +33,7 @@ int dev_dax_kmem_probe(struct device *dev) { struct dev_dax *dev_dax = to_dev_dax(dev); struct range range = dax_kmem_range(dev_dax); - struct resource *new_res; + struct resource *res; char *res_name; int numa_node; int rc; @@ -56,8 +56,8 @@ int dev_dax_kmem_probe(struct device *dev) return -ENOMEM; /* Region is permanently reserved if hotremove fails. */ - new_res = request_mem_region(range.start, range_len(&range), res_name); - if (!new_res) { + res = request_mem_region(range.start, range_len(&range), res_name); + if (!res) { dev_warn(dev, "could not reserve region [%#llx-%#llx]\n", range.start, range.end); kfree(res_name); return -EBUSY; @@ -69,23 +69,20 @@ int dev_dax_kmem_probe(struct device *dev) * inherit flags from the parent since it may set new flags * unknown to us that will break add_memory() below. */ - new_res->flags = IORESOURCE_SYSTEM_RAM; + res->flags = IORESOURCE_SYSTEM_RAM; /* * Ensure that future kexec'd kernels will not treat this as RAM * automatically. */ - rc = add_memory_driver_managed(numa_node, new_res->start, - resource_size(new_res), kmem_name); + rc = add_memory_driver_managed(numa_node, range.start, range_len(&range), kmem_name); if (rc) { - release_resource(new_res); - kfree(new_res); + release_mem_region(range.start, range_len(&range)); kfree(res_name); return rc; } dev_set_drvdata(dev, res_name); - dev_dax->dax_kmem_res = new_res; return 0; } @@ -95,7 +92,6 @@ static int dev_dax_kmem_remove(struct device *dev) { struct dev_dax *dev_dax = to_dev_dax(dev); struct range range = dax_kmem_range(dev_dax); - struct resource *res = dev_dax->dax_kmem_res; const char *res_name = dev_get_drvdata(dev); int rc; @@ -114,10 +110,8 @@ static int dev_dax_kmem_remove(struct device *dev) } /* Release and free dax resources */ - release_resource(res); - kfree(res); + release_mem_region(range.start, range_len(&range)); kfree(res_name); - dev_dax->dax_kmem_res = NULL; return 0; } |