On Tue, 27 Oct 2020, Greg Kroah-Hartman wrote:
From: Alan Maguire alan.maguire@oracle.com
[ Upstream commit eb58bbf2e5c7917aa30bf8818761f26bbeeb2290 ]
bpf iter size increase to PAGE_SIZE << 3 means overflow tests assuming page size need to be bumped also.
Alexei can correct me if I've got this wrong but I don't believe it's a stable backport candidate.
This selftests change should only be relevant when the BPF iterator size has been bumped up as it was in
af65320 bpf: Bump iter seq size to support BTF representation of large data structures
...so I don't _think_ this commit belongs in stable unless the above commit is backported also (and unless I'm missing something I don't see a burning reason to do that currently).
Backporting this alone will likely induce bpf test failures. Apologies if the "Fix" in the title was misleading; it should probably have been "Update" to reflect the fact it's not fixing an existing bug but rather updating the test to operate correctly in the context of other changes in the for-next patch series it was part of.
Thanks!
Alan