Hi Florian, Mat,
On 21/08/2020 15:39, Florian Westphal wrote:
After subflow lock is dropped, more wmem might have been made
This fixes a deadlock in mptcp_connect.sh 'mmap' mode: wmem is exhausted.
But as the mptcp socket holds on to already-acked data (for retransmit)
no wakeup will occur.
Using 'goto restart' calls mptcp_clean_una(sk) which will free pages
that have been acked completely in the mean time.
Fixes: fb529e62d3f3 ("mptcp: break and restart in case mptcp sndbuf is full")
Signed-off-by: Florian Westphal <fw(a)strlen.de>
Thank you for the patch and the review!
Applied at the beginning of the series because it was already applied in
Tests + export are in progress!
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