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kernel_arpi/tools/testing/selftests
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Peter Collingbourne 1077e2b152 selftest: use mmap instead of posix_memalign to allocate memory 
commit 0db282ba2c upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-28 14:35:46 +02:00
..
android
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arm64
kselftest/arm64: mte: Fix MTE feature detection
2021-05-11 14:47:18 +02:00
bpf
selftests/bpf: Whitelist test_progs.h from .gitignore
2021-07-14 16:56:23 +02:00
breakpoints
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capabilities
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cgroup
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clone3
selftests: clone3: use SKIP instead of XFAIL
2020-11-05 10:08:15 -07:00
core
selftests: core: use SKIP instead of XFAIL in close_range_test.c
2020-11-05 10:08:15 -07:00
cpu-hotplug
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cpufreq
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dmabuf-heaps
kselftests: dmabuf-heaps: Fix Makefile's inclusion of the kernel's usr/include dir
2021-03-04 11:38:05 +01:00
drivers
selftests: Clean forgotten resources as part of cleanup()
2021-07-19 09:44:49 +02:00
efivarfs
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exec
tools/testing/selftests/exec: fix link error
2021-05-26 12:06:49 +02:00
filesystems
Merge tag 'linux-kselftest-fixes-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
2020-11-06 15:42:42 -08:00
firmware
Merge tag 'linux-kselftest-next-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
2020-10-15 15:14:32 -07:00
fpu
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ftrace
selftests/ftrace: fix event-no-pid on 1-core machine
2021-07-14 16:56:49 +02:00
futex
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gpio
selftests/gpio: Fix build when source tree is read only
2021-06-03 09:00:31 +02:00
ia64
…
intel_pstate
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ipc
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ir
…
kcmp
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kexec
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kmod
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kselftest
tweewide: Fix most Shebang lines
2021-05-22 11:40:55 +02:00
kvm
KVM: selftests: Fix kvm_check_cap() assertion
2021-06-30 08:47:22 -04:00
lib
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livepatch
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lkdtm
selftests/lkdtm: Fix expected text for CR4 pinning
2021-07-19 09:45:00 +02:00
locking
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media_tests
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membarrier
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memfd
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memory-hotplug
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mincore
…
mount
…
mqueue
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net
selftests: icmp_redirect: IPv6 PMTU info should be cleared after redirect
2021-07-28 14:35:34 +02:00
netfilter
selftests: netfilter: fix current year
2021-02-17 11:02:25 +01:00
nsfs
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ntb
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openat2
…
pid_namespace
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pidfd
selftests: pidfd: drop needless linux/kcmp.h inclusion in pidfd_setns_test.c
2020-10-27 17:04:01 -06:00
powerpc
selftests/powerpc: Fix "no_handler" EBB selftest
2021-07-20 16:05:43 +02:00
prctl
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proc
selftests: proc: fix warning: _GNU_SOURCE redefined
2020-11-05 10:08:14 -07:00
pstore
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ptp
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ptrace
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rcutorture
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resctrl
selftests/resctrl: Fix incorrect parsing of option "-t"
2021-07-19 09:44:55 +02:00
rseq
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rtc
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safesetid
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seccomp
powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls
2021-05-26 12:06:53 +02:00
sigaltstack
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size
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sparc64
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splice
selftests: splice: Adjust for handler fallback removal
2021-07-14 16:56:42 +02:00
static_keys
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sync
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sysctl
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tc-testing
tc-testing: fix list handling
2021-07-14 16:56:26 +02:00
timens
selftests/timens: Add a test for futex()
2020-10-20 17:02:57 +02:00
timers
selftests: timers: rtcpie: skip test if default RTC device does not exist
2021-07-20 16:05:42 +02:00
tmpfs
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tpm2
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uevent
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user
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vDSO
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vm
selftest: use mmap instead of posix_memalign to allocate memory
2021-07-28 14:35:46 +02:00
watchdog
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wireguard
wireguard: selftests: make sure rp_filter is disabled on vethc
2021-06-10 13:39:24 +02:00
x86
Merge tag 'x86_fsgsbase_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-10-12 10:44:24 -07:00
zram
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.gitignore
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gen_kselftest_tar.sh
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kselftest_deps.sh
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kselftest_harness.h
Merge tag 'linux-kselftest-fixes-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
2020-11-06 15:42:42 -08:00
kselftest_install.sh
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kselftest_module.h
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kselftest.h
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lib.mk
selftests: Set CC to clang in lib.mk if LLVM is set
2021-05-19 10:12:56 +02:00
Makefile
selftests: Extract run_kselftest.sh and generate stand-alone test list
2020-10-07 07:58:54 -06:00
run_kselftest.sh
selftests/run_kselftest.sh: fix dry-run typo
2020-12-30 11:53:07 +01:00