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| author | Ralph Campbell <[email protected]> | 2022-07-25 18:36:15 +0000 |
|---|---|---|
| committer | akpm <[email protected]> | 2022-07-30 01:07:18 +0000 |
| commit | f6c3e1ae0114cd0f5123cf38187d450c1b119e67 (patch) | |
| tree | 73c02549c0758ccb1cc3af1a286fe82e30754da5 /drivers/fpga/fpga-region.c | |
| parent | selftests: add soft-dirty into run_vmtests.sh (diff) | |
| download | kernel-f6c3e1ae0114cd0f5123cf38187d450c1b119e67.tar.gz kernel-f6c3e1ae0114cd0f5123cf38187d450c1b119e67.zip | |
mm/hmm: add a test for cross device private faults
Add a simple test case for when hmm_range_fault() is called with the
HMM_PFN_REQ_FAULT flag and a device private PTE is found for a device
other than the hmm_range::dev_private_owner. This should cause the page
to be faulted back to system memory from the other device and the PFN
returned in the output array.
Also, remove a piece of code that unnecessarily unmaps part of the buffer.
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Ralph Campbell <[email protected]>
Reviewed-by: Alistair Popple <[email protected]>
Cc: Felix Kuehling <[email protected]>
Cc: Philip Yang <[email protected]>
Cc: Jason Gunthorpe <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-region.c')
0 files changed, 0 insertions, 0 deletions