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This patch tests the map creation failure when the map_value
has unsupported uptr. The three cases are the struct is larger
than one page, the struct is empty, and the struct is a kernel struct.
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20241023234759.860539-13-martin.lau@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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This patch test the following failures in syscall update_elem
1. The first update_elem(BPF_F_LOCK) should be EOPNOTSUPP. syscall.c takes
care of unpinning the uptr.
2. The second update_elem(BPF_EXIST) fails. syscall.c takes care of
unpinning the uptr.
3. The forth update_elem(BPF_NOEXIST) fails. bpf_local_storage_update
takes care of unpinning the uptr.
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20241023234759.860539-11-martin.lau@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Make sure the memory of uptrs have been mapped to the kernel properly.
Also ensure the values of uptrs in the kernel haven't been copied
to userspace.
It also has the syscall update_elem/delete_elem test to test the
pin/unpin code paths.
Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20241023234759.860539-9-martin.lau@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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