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| author | Christoph Hellwig <hch@lst.de> | 2021-04-29 22:57:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-30 11:20:39 -0700 |
| commit | 1fbaf8fc12a0136c7e62e7ad6fe886fe1749912c (patch) | |
| tree | 272f224698d871cd2ff65a5fc1fefb02de87fbcc /mm/Makefile | |
| parent | 74ffa5a3e68504dd289135b1cf0422c19ffb3f2e (diff) | |
| download | lwn-1fbaf8fc12a0136c7e62e7ad6fe886fe1749912c.tar.gz lwn-1fbaf8fc12a0136c7e62e7ad6fe886fe1749912c.zip | |
mm: add a io_mapping_map_user helper
Add a helper that calls remap_pfn_range for an struct io_mapping, relying
on the pgprot pre-validation done when creating the mapping instead of
doing it at runtime.
Link: https://lkml.kernel.org/r/20210326055505.1424432-3-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/Makefile')
| -rw-r--r-- | mm/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/Makefile b/mm/Makefile index 72227b24a616..c0135e385984 100644 --- a/mm/Makefile +++ b/mm/Makefile @@ -120,3 +120,4 @@ obj-$(CONFIG_MEMFD_CREATE) += memfd.o obj-$(CONFIG_MAPPING_DIRTY_HELPERS) += mapping_dirty_helpers.o obj-$(CONFIG_PTDUMP_CORE) += ptdump.o obj-$(CONFIG_PAGE_REPORTING) += page_reporting.o +obj-$(CONFIG_IO_MAPPING) += io-mapping.o |