kernel_realme_nemo

Files

Song Liu 392ea572e9 BACKPORT: bpf: enable stackmap with build_id in nmi context

Currently, we cannot parse build_id in nmi context because of
up_read(&current->mm->mmap_sem), this makes stackmap with build_id
less useful. This patch enables parsing build_id in nmi by putting
the up_read() call in irq_work. To avoid memory allocation in nmi
context, we use per cpu variable for the irq_work. As a result, only
one irq_work per cpu is allowed. If the irq_work is in-use, we
fallback to only report ips.

Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Change-Id: I482218bf334ff9486b1c43db0105a6de5e0b1de6
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Naveen <133593113+elohim-etz@users.noreply.github.com>

2025-12-24 11:38:02 +00:00

calibrate.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

do_mounts_dm.c

[ALPS04672712] Revert "ANDROID: dm: do_mounts_dm: Rebase on top of 4.9"

2020-03-03 04:04:51 +08:00

do_mounts_initrd.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

do_mounts_md.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license