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(parent: c9328c3) | patch
net: Fix a data-race around netdev_budget_usecs.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Tue, 23 Aug 2022 17:46:55 +0000 (10:46 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 5 Sep 2022 08:25:04 +0000 (10:25 +0200)
commit19ea2bedbd74aff3d35f5cc0d8c6a0ac3da2a6ed
tree5da61ba6af5133b40dba9b96532132e17742aa5dtree | snapshot (tar.gz zip)
parentc9328c3d5a9eb21da020c7a9490964554963d2ebcommit | diff
net: Fix a data-race around netdev_budget_usecs.

[ Upstream commit fa45d484c52c73f79db2c23b0cdfc6c6455093ad ]

While reading netdev_budget_usecs, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 7acf8a1e8a28 ("Replace 2 jiffies with sysctl netdev_budget_usecs to enable softirq tuning")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
net/core/dev.c diff | blob | blame | history