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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-05 07:59:28 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-05 07:59:28 +0200 |
| commit | 35f2e3c267f07a42bc1bf08081e963b3a33e6d7c (patch) | |
| tree | cab274350db930656d6ea9a0c9989f210acf4722 /net/core/sysctl_net_core.c | |
| parent | e4cdd25cafac3f61c74c146db5de7a5c9bd7b6d0 (diff) | |
| parent | 7e18e42e4b280c85b76967a9106a13ca61c16179 (diff) | |
Merge 6.0-rc4 into tty-next
We need the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core/sysctl_net_core.c')
| -rw-r--r-- | net/core/sysctl_net_core.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index 71a13596ea2b..725891527814 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -234,14 +234,17 @@ static int set_default_qdisc(struct ctl_table *table, int write, static int proc_do_dev_weight(struct ctl_table *table, int write, void *buffer, size_t *lenp, loff_t *ppos) { - int ret; + static DEFINE_MUTEX(dev_weight_mutex); + int ret, weight; + mutex_lock(&dev_weight_mutex); ret = proc_dointvec(table, write, buffer, lenp, ppos); - if (ret != 0) - return ret; - - dev_rx_weight = weight_p * dev_weight_rx_bias; - dev_tx_weight = weight_p * dev_weight_tx_bias; + if (!ret && write) { + weight = READ_ONCE(weight_p); + WRITE_ONCE(dev_rx_weight, weight * dev_weight_rx_bias); + WRITE_ONCE(dev_tx_weight, weight * dev_weight_tx_bias); + } + mutex_unlock(&dev_weight_mutex); return ret; } |