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| author |   Dan Williams <dan.j.williams@intel.com> | 2019-06-13 15:56:21 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-06-13 17:34:56 -1000 |
| commit | 2e3f139e8ecebf177fe01299285a56855e93fb84 (patch) | |
| tree | 87227a7000e22b20b44b2c7468cf73e51c37b1af /include/linux/memremap.h | |
| parent | drivers/base/devres: introduce devm_release_action() (diff) | |
| download | linux-dev-2e3f139e8ecebf177fe01299285a56855e93fb84.tar.xz linux-dev-2e3f139e8ecebf177fe01299285a56855e93fb84.zip | |
mm/devm_memremap_pages: introduce devm_memunmap_pages
Use the new devm_release_action() facility to allow
devm_memremap_pages_release() to be manually triggered.
Link: http://lkml.kernel.org/r/155727337088.292046.5774214552136776763.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/memremap.h')
| -rw-r--r-- | include/linux/memremap.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/memremap.h b/include/linux/memremap.h index f0628660d541..7601ee314c4a 100644 --- a/include/linux/memremap.h +++ b/include/linux/memremap.h @@ -100,6 +100,7 @@ struct dev_pagemap { #ifdef CONFIG_ZONE_DEVICE void *devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap); +void devm_memunmap_pages(struct device *dev, struct dev_pagemap *pgmap); struct dev_pagemap *get_dev_pagemap(unsigned long pfn, struct dev_pagemap *pgmap); @@ -118,6 +119,11 @@ static inline void *devm_memremap_pages(struct device *dev, return ERR_PTR(-ENXIO); } +static inline void devm_memunmap_pages(struct device *dev, + struct dev_pagemap *pgmap) +{ +} + static inline struct dev_pagemap *get_dev_pagemap(unsigned long pfn, struct dev_pagemap *pgmap) { |