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| author | Paolo Abeni <pabeni@redhat.com> | 2020-11-08 19:49:59 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-09 17:34:34 -0800 |
| commit | 989ef49bdf100cc772b3a8737089df36b1ab1e30 (patch) | |
| tree | 0e903624bb04a09f56a996378eb3f0200d314921 /net/mptcp/protocol.c | |
| parent | 16eb0eb835c77c5e8824b8aa90b11b00ddc5c122 (diff) | |
| download | linux-989ef49bdf100cc772b3a8737089df36b1ab1e30.tar.gz linux-989ef49bdf100cc772b3a8737089df36b1ab1e30.tar.bz2 linux-989ef49bdf100cc772b3a8737089df36b1ab1e30.zip | |
mptcp: provide rmem[0] limit
The mptcp proto struct currently does not provide the
required limit for forward memory scheduling. Under
pressure sk_rmem_schedule() will unconditionally try
to use such field and will oops.
Address the issue inheriting the tcp limit, as we already
do for the wmem one.
Fixes: 9c3f94e1681b ("mptcp: add missing memory scheduling in the rx path")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Link: https://lore.kernel.org/r/37af798bd46f402fb7c79f57ebbdd00614f5d7fa.1604861097.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp/protocol.c')
| -rw-r--r-- | net/mptcp/protocol.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index e7419fd15d84..88f2a7a0ccb8 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -2467,6 +2467,7 @@ static struct proto mptcp_prot = { .memory_pressure = &tcp_memory_pressure, .stream_memory_free = mptcp_memory_free, .sysctl_wmem_offset = offsetof(struct net, ipv4.sysctl_tcp_wmem), + .sysctl_rmem_offset = offsetof(struct net, ipv4.sysctl_tcp_rmem), .sysctl_mem = sysctl_tcp_mem, .obj_size = sizeof(struct mptcp_sock), .slab_flags = SLAB_TYPESAFE_BY_RCU, |