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[RESEND,bpf-next,0/2] bpf: Use GFP_KERNEL in bpf_event_entry_gen()

Message ID 20231208103357.2637299-1-houtao@huaweicloud.com (mailing list archive)
Headers show
Series bpf: Use GFP_KERNEL in bpf_event_entry_gen() | expand

Message

Hou Tao Dec. 8, 2023, 10:33 a.m. UTC 
From: Hou Tao <houtao1@huawei.com>

Hi,

The simple patch set aims to replace GFP_ATOMIC in bpf_event_entry_gen().
These two patches in the patchset were preparatory patches in "Fix the
release of inner map" patchset [1] and are not needed for v2, so re-post
it to bpf-next tree.

Patch #1 reduces the scope of rcu_read_lock when updating fd map and
patch #2 replaces GFP_ATOMIC by GFP_KERNEL. Please see individual
patches for more details.

Comments are always welcome.

Regards,
Tao

[1]: https://lore.kernel.org/bpf/20231107140702.1891778-1-houtao@huaweicloud.com


Hou Tao (2):
  bpf: Reduce the scope of rcu_read_lock when updating fd map
  bpf: Use GFP_KERNEL in bpf_event_entry_gen()

 kernel/bpf/arraymap.c | 2 +-
 kernel/bpf/hashtab.c  | 2 ++
 kernel/bpf/syscall.c  | 4 ----
 3 files changed, 3 insertions(+), 5 deletions(-)