Re: [bpf-next 0/2] bpf: Add flag for batch operation

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On 11/10/2024 7:29 PM, Florian Lehner wrote:
> Introduce a new flag for batch operations that allows the deletion process
> to continue even if certain keys are missing. This simplifies map flushing
> by eliminating the requirement to maintain a separate list of keys and
> makes sure maps can be flushed with a single batch delete operation.

Is it expensive to close and recreate a new map instead ? If it is
expensive, does it make more sense to add a new command to delete all
elements in the map ? Because reusing the deletion logic will make each
deletion involve an unnecessary lookup operation.
>
> Florian Lehner (2):
>   bpf: Add flag to continue batch operation
>   selftests/bpf: Add a test for batch operation flag
>
>  include/uapi/linux/bpf.h                      |  5 +++++
>  kernel/bpf/syscall.c                          | 14 ++++++++++---
>  tools/include/uapi/linux/bpf.h                |  5 +++++
>  .../bpf/map_tests/htab_map_batch_ops.c        | 20 ++++++++++++++++++-
>  4 files changed, 40 insertions(+), 4 deletions(-)
>





[Index of Archives]     [Linux Samsung SoC]     [Linux Rockchip SoC]     [Linux Actions SoC]     [Linux for Synopsys ARC Processors]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]


  Powered by Linux