diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-06-26 14:27:12 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-07-02 19:32:44 +0200 |
| commit | 80a72d0af05ae97a8b106c172e431072ba587492 (patch) | |
| tree | 9f7ace9e0b44dc866a6ac1fda624813a608b11ed | |
| parent | memremap: add a migrate_to_ram method to struct dev_pagemap_ops (diff) | |
| download | linux-80a72d0af05ae97a8b106c172e431072ba587492.tar.xz linux-80a72d0af05ae97a8b106c172e431072ba587492.zip | |
memremap: remove the data field in struct dev_pagemap
struct dev_pagemap is always embedded into a containing structure, so
there is no need to an additional private data field.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
| -rw-r--r-- | drivers/nvdimm/pmem.c | 2 | ||||
| -rw-r--r-- | include/linux/memremap.h | 3 | ||||
| -rw-r--r-- | kernel/memremap.c | 2 | ||||
| -rw-r--r-- | mm/hmm.c | 9 |
4 files changed, 8 insertions, 8 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 48767171a4df..093408ce40ad 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -334,7 +334,7 @@ static void pmem_release_disk(void *__pmem) put_disk(pmem->disk); } -static void pmem_pagemap_page_free(struct page *page, void *data) +static void pmem_pagemap_page_free(struct page *page) { wake_up_var(&page->_refcount); } diff --git a/include/linux/memremap.h b/include/linux/memremap.h index ac985bd03a7f..336eca601dad 100644 --- a/include/linux/memremap.h +++ b/include/linux/memremap.h @@ -69,7 +69,7 @@ struct dev_pagemap_ops { * reach 0 refcount unless there is a refcount bug. This allows the * device driver to implement its own memory management.) */ - void (*page_free)(struct page *page, void *data); + void (*page_free)(struct page *page); /* * Transition the refcount in struct dev_pagemap to the dead state. @@ -104,7 +104,6 @@ struct dev_pagemap { struct resource res; struct percpu_ref *ref; struct device *dev; - void *data; enum memory_type type; u64 pci_p2pdma_bus_offset; const struct dev_pagemap_ops *ops; diff --git a/kernel/memremap.c b/kernel/memremap.c index c06a5487dda7..6c3dbb692037 100644 --- a/kernel/memremap.c +++ b/kernel/memremap.c @@ -376,7 +376,7 @@ void __put_devmap_managed_page(struct page *page) mem_cgroup_uncharge(page); - page->pgmap->ops->page_free(page, page->pgmap->data); + page->pgmap->ops->page_free(page); } else if (!count) __put_page(page); } @@ -1368,15 +1368,17 @@ static void hmm_devmem_ref_kill(struct dev_pagemap *pgmap) static vm_fault_t hmm_devmem_migrate_to_ram(struct vm_fault *vmf) { - struct hmm_devmem *devmem = vmf->page->pgmap->data; + struct hmm_devmem *devmem = + container_of(vmf->page->pgmap, struct hmm_devmem, pagemap); return devmem->ops->fault(devmem, vmf->vma, vmf->address, vmf->page, vmf->flags, vmf->pmd); } -static void hmm_devmem_free(struct page *page, void *data) +static void hmm_devmem_free(struct page *page) { - struct hmm_devmem *devmem = data; + struct hmm_devmem *devmem = + container_of(page->pgmap, struct hmm_devmem, pagemap); devmem->ops->free(devmem, page); } @@ -1442,7 +1444,6 @@ struct hmm_devmem *hmm_devmem_add(const struct hmm_devmem_ops *ops, devmem->pagemap.ops = &hmm_pagemap_ops; devmem->pagemap.altmap_valid = false; devmem->pagemap.ref = &devmem->ref; - devmem->pagemap.data = devmem; result = devm_memremap_pages(devmem->device, &devmem->pagemap); if (IS_ERR(result)) |