[PATCH v3 bpf-next 0/2] bpf: enable stackmap with build_id in nmi

From: Song Liu <songliubraving@fb.com>
To: <netdev@vger.kernel.org>
Cc: Song Liu <songliubraving@fb.com>, <kernel-team@fb.com>,
	<qinteng@fb.com>, <tobin@apporbit.com>
Subject: [PATCH v3 bpf-next 0/2] bpf: enable stackmap with build_id in nmi
Date: Mon, 7 May 2018 10:50:47 -0700	[thread overview]
Message-ID: <20180507175049.1541963-1-songliubraving@fb.com> (raw)

Changes v2 -> v3:
  Improve syntax based on suggestion by Tobin C. Harding.

Changes v1 -> v2:
  1. Rename some variables to (hopefully) reduce confusion;
  2. Check irq_work status with IRQ_WORK_BUSY (instead of work->sem);
  3. In Kconfig, let BPF_SYSCALL select IRQ_WORK;
  4. Add static to DEFINE_PER_CPU();
   5. Remove pr_info() in stack_map_init().

Song Liu (2):
  bpf: enable stackmap with build_id in nmi context
  bpf: add selftest for stackmap with build_id in NMI context

 init/Kconfig                               |   1 +
 kernel/bpf/stackmap.c                      |  59 +++++++++++--
 tools/testing/selftests/bpf/test_progs.c   | 134 +++++++++++++++++++++++++++++
 tools/testing/selftests/bpf/urandom_read.c |  10 ++-
 4 files changed, 196 insertions(+), 8 deletions(-)