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| author | Anshuman Khandual <[email protected]> | 2019-06-28 19:06:37 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2019-06-29 08:43:44 +0000 |
| commit | 36d6cb73d5e60cdb2724c21ccba93c964e6a16f9 (patch) | |
| tree | b73c6c6c3a6d893be4c21c4d8a14f7e7f771df4e /fs/proc/array.c | |
| parent | Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/... (diff) | |
| download | kernel-36d6cb73d5e60cdb2724c21ccba93c964e6a16f9.tar.gz kernel-36d6cb73d5e60cdb2724c21ccba93c964e6a16f9.zip | |
mm/dev_pfn: exclude MEMORY_DEVICE_PRIVATE while computing virtual address
The presence of struct page does not guarantee linear mapping for the pfn
physical range. Device private memory which is non-coherent is excluded
from linear mapping during devm_memremap_pages() though they will still
have struct page coverage.
Change pfn_t_to_virt() to just check for device private memory before
giving out virtual address for a given pfn.
pfn_t_to_virt() actually has no callers. Let's fix it for the 5.2 kernel
and remove it in 5.3.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Anshuman Khandual <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Jérôme Glisse <[email protected]>
Cc: Laurent Dufour <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'fs/proc/array.c')
0 files changed, 0 insertions, 0 deletions