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-rw-r--r--net/Kconfig2
-rw-r--r--net/core/dev.c9
2 files changed, 7 insertions, 4 deletions
diff --git a/net/Kconfig b/net/Kconfig
index 7d39c1773eb4..2fb25b534df5 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -324,7 +324,7 @@ config CGROUP_NET_CLASSID
config NET_RX_BUSY_POLL
bool
- default y if !PREEMPT_RT
+ default y if !PREEMPT_RT || (PREEMPT_RT && !NETCONSOLE)
config BQL
bool
diff --git a/net/core/dev.c b/net/core/dev.c
index b3c13e041935..3393c2f3dbe8 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6197,7 +6197,8 @@ restart:
if (!napi)
goto out;
- preempt_disable();
+ if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+ preempt_disable();
for (;;) {
int work = 0;
@@ -6239,7 +6240,8 @@ count:
if (unlikely(need_resched())) {
if (napi_poll)
busy_poll_stop(napi, have_poll_lock, prefer_busy_poll, budget);
- preempt_enable();
+ if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+ preempt_enable();
rcu_read_unlock();
cond_resched();
if (loop_end(loop_end_arg, start_time))
@@ -6250,7 +6252,8 @@ count:
}
if (napi_poll)
busy_poll_stop(napi, have_poll_lock, prefer_busy_poll, budget);
- preempt_enable();
+ if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+ preempt_enable();
out:
rcu_read_unlock();
}