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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 /kernel | |
| parent | 2374b682255184d7ef75fcb507ce5af4995ead32 (diff) | |
| download | linux-2e3f139e8ecebf177fe01299285a56855e93fb84.tar.gz linux-2e3f139e8ecebf177fe01299285a56855e93fb84.tar.bz2 linux-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 'kernel')
| -rw-r--r-- | kernel/memremap.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/memremap.c b/kernel/memremap.c index 1490e63f69a9..715b434bd316 100644 --- a/kernel/memremap.c +++ b/kernel/memremap.c @@ -271,6 +271,12 @@ void *devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap) } EXPORT_SYMBOL_GPL(devm_memremap_pages); +void devm_memunmap_pages(struct device *dev, struct dev_pagemap *pgmap) +{ + devm_release_action(dev, devm_memremap_pages_release, pgmap); +} +EXPORT_SYMBOL_GPL(devm_memunmap_pages); + unsigned long vmem_altmap_offset(struct vmem_altmap *altmap) { /* number of pfns from base where pfn_to_page() is valid */ |