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(parent: 12a34d7) | 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>
Wed, 31 Aug 2022 15:15:20 +0000 (17:15 +0200)
commitc3bda708e9c40d0a88f3c86c3d9103db44b38c0b
tree5c53fdf5f10a36164e0171d160206b1a433e0504tree
parent12a34d7f0463ebb6db01977091b5cda46d9060bccommit | 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
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git