git: wg: Port #35: refactor noise keypair functions to avoid epoch

[Aaron LI]

commit 13a64e4bd4b7331d26512c60470c49c295cc15ae
Author: Aaron LI <aly at aaronly.me>
Date:   Fri Jan 5 21:09:33 2024 +0800

    wg: Port #35: refactor noise keypair functions to avoid epoch
    
    - Refactor the functions to avoid using epoch or deferred operations.
      So noise_keypair_put() is simplified and remove the obsolete
      noise_keypair_smr_free() function.
    - Remove 'refcount_acquire_if_not_zero()' and use plain refcount instead,
      since there's no more deferred frees.
    - Use shared locks instead of epoch sections; meanwhile, rename
      'r_keypair_mtx' to 'r_keypair_lock' because it now supports both
      shared and exclusive locks.

Summary of changes:
 sys/net/wg/wg_noise.c | 92 ++++++++++++++++++++++++---------------------------
 1 file changed, 44 insertions(+), 48 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/13a64e4bd4b7331d26512c60470c49c295cc15ae


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