diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2023-03-21 21:32:21 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-03-21 21:32:21 -0700 |
| commit | 85496c9b3bf8dbe15e2433d3a0197954d323cadc (patch) | |
| tree | d2312716d8e90eff12270a472646f82aab0e6f42 /include/linux | |
| parent | f6f4e739b16487c89d29ef8b425d019bed64f541 (diff) | |
| parent | fe602c87df1b6927562f4ee61edd851bb9578a49 (diff) | |
Merge branch 'net-remove-some-rcu_bh-cruft'
Eric Dumazet says:
====================
net: remove some rcu_bh cruft
There is no point using rcu_bh variant hoping to free objects faster,
especially hen using call_rcu() or kfree_rcu().
Disabling/enabling BH has a non-zero cost, and adds distracting
hot spots in kernel profiles eg. in ip6_xmit().
====================
Link: https://lore.kernel.org/r/20230321040115.787497-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/rtnetlink.h | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h index 92ad75549e9c..f0c87baaf6c0 100644 --- a/include/linux/rtnetlink.h +++ b/include/linux/rtnetlink.h @@ -62,16 +62,6 @@ static inline bool lockdep_rtnl_is_held(void) rcu_dereference_check(p, lockdep_rtnl_is_held()) /** - * rcu_dereference_bh_rtnl - rcu_dereference_bh with debug checking - * @p: The pointer to read, prior to dereference - * - * Do an rcu_dereference_bh(p), but check caller either holds rcu_read_lock_bh() - * or RTNL. Note : Please prefer rtnl_dereference() or rcu_dereference_bh() - */ -#define rcu_dereference_bh_rtnl(p) \ - rcu_dereference_bh_check(p, lockdep_rtnl_is_held()) - -/** * rtnl_dereference - fetch RCU pointer when updates are prevented by RTNL * @p: The pointer to read, prior to dereferencing * |