[rds-devel] [PATCH v4 1/1] net:rds: Fix possible deadlock in rds_message_put

[patchwork-bot+netdevbpf at kernel.org]

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni at redhat.com>:

On Thu,  8 Feb 2024 19:28:54 -0700 you wrote:
> From: Allison Henderson <allison.henderson at oracle.com>
> 
> Functions rds_still_queued and rds_clear_recv_queue lock a given socket
> in order to safely iterate over the incoming rds messages. However
> calling rds_inc_put while under this lock creates a potential deadlock.
> rds_inc_put may eventually call rds_message_purge, which will lock
> m_rs_lock. This is the incorrect locking order since m_rs_lock is
> meant to be locked before the socket. To fix this, we move the message
> item to a local list or variable that wont need rs_recv_lock protection.
> Then we can safely call rds_inc_put on any item stored locally after
> rs_recv_lock is released.
> 
> [...]

Here is the summary with links:
  - [v4,1/1] net:rds: Fix possible deadlock in rds_message_put
    https://git.kernel.org/netdev/net/c/f1acf1ac84d2

You are awesome, thank you!
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