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OpenCloudOS-Kernel/tools/testing
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Peter Collingbourne 0db282ba2c selftest: use mmap instead of posix_memalign to allocate memory 
This test passes pointers obtained from anon_allocate_area to the
userfaultfd and mremap APIs.  This causes a problem if the system
allocator returns tagged pointers because with the tagged address ABI
the kernel rejects tagged addresses passed to these APIs, which would
end up causing the test to fail.  To make this test compatible with such
system allocators, stop using the system allocator to allocate memory in
anon_allocate_area, and instead just use mmap.

Link: https://lkml.kernel.org/r/20210714195437.118982-3-pcc@google.com
Link: https://linux-review.googlesource.com/id/Icac91064fcd923f77a83e8e133f8631c5b8fc241
Fixes: c47174fc36 ("userfaultfd: selftest")
Co-developed-by: Lokesh Gidra <lokeshgidra@google.com>
Signed-off-by: Lokesh Gidra <lokeshgidra@google.com>
Signed-off-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Alistair Delva <adelva@google.com>
Cc: William McVicker <willmcvicker@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mitch Phillips <mitchp@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: <stable@vger.kernel.org>	[5.4]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2021-07-23 17:43:28 -07:00
..
fault-injection
…
ktest bootconfig/tracing/ktest: Add ktest examples of testing bootconfig 2021-06-24 15:34:33 -04:00
kunit kunit: tool: Assert the version requirement 2021-07-12 14:02:32 -06:00
nvdimm ACPI: NFIT: Fix support for variable 'SPA' structure size 2021-05-12 12:38:25 -07:00
radix-tree idr test suite: Improve reporting from idr_find_test_1 2021-04-01 07:50:42 -04:00
scatterlist tools/testing/scatterlist: Fix overflow of max segment size 2021-01-28 15:17:39 -04:00
selftests selftest: use mmap instead of posix_memalign to allocate memory 2021-07-23 17:43:28 -07:00
vsock vsock_test: add SOCK_SEQPACKET tests 2021-06-11 13:32:47 -07:00