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| author | Kuniyuki Iwashima <[email protected]> | 2022-08-23 17:46:53 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2022-08-24 12:46:58 +0000 |
| commit | 2e0c42374ee32e72948559d2ae2f7ba3dc6b977c (patch) | |
| tree | dedb5016d36856fd34d13fbcfc7d93823b9b8cd9 /net/core/dev.c | |
| parent | net: Fix a data-race around sysctl_net_busy_read. (diff) | |
| download | kernel-2e0c42374ee32e72948559d2ae2f7ba3dc6b977c.tar.gz kernel-2e0c42374ee32e72948559d2ae2f7ba3dc6b977c.zip | |
net: Fix a data-race around netdev_budget.
While reading netdev_budget, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.
Fixes: 51b0bdedb8e7 ("[NET]: Separate two usages of netdev_max_backlog.")
Signed-off-by: Kuniyuki Iwashima <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 4705e6630efa..c83e23cfc57d 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -6666,7 +6666,7 @@ static __latent_entropy void net_rx_action(struct softirq_action *h) struct softnet_data *sd = this_cpu_ptr(&softnet_data); unsigned long time_limit = jiffies + usecs_to_jiffies(netdev_budget_usecs); - int budget = netdev_budget; + int budget = READ_ONCE(netdev_budget); LIST_HEAD(list); LIST_HEAD(repoll); |