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| author | Kees Cook <kees@kernel.org> | 2024-06-12 22:59:18 +0300 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2024-06-15 04:31:33 +0300 |
| commit | 51104c19d8570eb23208e08eac0e9ae09ced1c15 (patch) | |
| tree | e3667f8ff7dda66f1a79d5f848a9de66a1b6b530 /kernel/fork.c | |
| parent | 425ae3ab5a1fa744a00680f059cf1accaaaecb28 (diff) | |
| download | linux-51104c19d8570eb23208e08eac0e9ae09ced1c15.tar.xz | |
kunit: test: Add vm_mmap() allocation resource manager
For tests that need to allocate using vm_mmap() (e.g. usercopy and
execve), provide the interface to have the allocation tracked by KUnit
itself. This requires bringing up a placeholder userspace mm.
This combines my earlier attempt at this with Mark Rutland's version[1].
Normally alloc_mm() and arch_pick_mmap_layout() aren't exported for
modules, so export these only for KUnit testing.
Link: https://lore.kernel.org/lkml/20230321122514.1743889-2-mark.rutland@arm.com/ [1]
Co-developed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Kees Cook <kees@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 99076dbe27d8..cea203197136 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -115,6 +115,8 @@ #define CREATE_TRACE_POINTS #include <trace/events/task.h> +#include <kunit/visibility.h> + /* * Minimum number of threads to boot the kernel */ @@ -1334,6 +1336,7 @@ struct mm_struct *mm_alloc(void) memset(mm, 0, sizeof(*mm)); return mm_init(mm, current, current_user_ns()); } +EXPORT_SYMBOL_IF_KUNIT(mm_alloc); static inline void __mmput(struct mm_struct *mm) { |