[PATCH bpf 0/4] bpf_prog_pack and vmalloc-on-huge-page fixes

Song Liu
2022-04-22T05:24:22Z

NOTE: This set is based on Linus' master branch (d569e86915b7), not
bpf/master.

There are various discussion about these changes, check out [1] [2].
I guess we can use this thread to discuss which patches should go in 5.18.
AFAICT, 1/4 need to with 5.18; 2/4 seems safe to go as well; 3/4 and 4/4
may still need more work/discussion.

Thanks!

[1] https://lore.kernel.org/linux-mm/20220415164413.2727220-1-song@kernel.org/
[2] https://lore.kernel.org/linux-mm/20220421072212.608884-1-song@kernel.org/

Song Liu (4):
bpf: invalidate unused part of bpf_prog_pack
page_alloc: use vmalloc_huge for large system hash
module: introduce module_alloc_huge
bpf: use module_alloc_huge for bpf_prog_pack

arch/x86/kernel/module.c | 21 +++++++++++++++++++++
arch/x86/net/bpf_jit_comp.c | 22 ++++++++++++++++++++++
include/linux/bpf.h | 2 ++
include/linux/moduleloader.h | 5 +++++
kernel/bpf/core.c | 28 +++++++++++++++++++++-------
kernel/module.c | 8 ++++++++
mm/page_alloc.c | 2 +-
7 files changed, 80 insertions(+), 8 deletions(-)

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2.30.2