From: Hou Tao <houtao1@xxxxxxxxxx>
Hi,
The patch set aims to fix the warnings in kvmalloc_node() when passing
an abnormally big cnt during multiple kprobes/uprobes attachment.
Patch #1 fixes the warning in multiple uprobes attachment and patch #4
is the corresponding test case. Patch #2 fixes the warning for multiple
kprobes attachment and patch #3 is the corresponding test case.
Please see individual patches for more details. Comments are always
welcome.
Hou Tao (4):
bpf: Use __GFP_NOWARN for kvcalloc when attaching multiple uprobes
bpf: Use __GFP_NOWARN for kvmalloc_array() when attaching multiple
kprobes
selftests/bpf: Add test for abnormal cnt during multi-kprobe
attachment
selftests/bpf: Add test for abnormal cnt during multi-uprobe
attachment
kernel/trace/bpf_trace.c | 10 ++---
.../bpf/prog_tests/kprobe_multi_test.c | 14 ++++++
.../bpf/prog_tests/uprobe_multi_test.c | 43 ++++++++++++++++++-
3 files changed, 61 insertions(+), 6 deletions(-)
--
2.29.2
