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| author | Xin Long <lucien.xin@gmail.com> | 2019-04-15 17:15:07 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-15 13:36:51 -0700 |
| commit | 9dde27de3e5efa0d032f3c891a0ca833a0d31911 (patch) | |
| tree | baba7e7942d6e6a3162db024a2995f306d0afad4 /net/sctp/sm_statefuns.c | |
| parent | 1033990ac5b2ab6cee93734cb6d301aa3a35bcaa (diff) | |
| download | linux-9dde27de3e5efa0d032f3c891a0ca833a0d31911.tar.gz linux-9dde27de3e5efa0d032f3c891a0ca833a0d31911.tar.bz2 linux-9dde27de3e5efa0d032f3c891a0ca833a0d31911.zip | |
sctp: implement memory accounting on rx path
sk_forward_alloc's updating is also done on rx path, but to be consistent
we change to use sk_mem_charge() in sctp_skb_set_owner_r().
In sctp_eat_data(), it's not enough to check sctp_memory_pressure only,
which doesn't work for mem_cgroup_sockets_enabled, so we change to use
sk_under_memory_pressure().
When it's under memory pressure, sk_mem_reclaim() and sk_rmem_schedule()
should be called on both RENEGE or CHUNK DELIVERY path exit the memory
pressure status as soon as possible.
Note that sk_rmem_schedule() is using datalen to make things easy there.
Reported-by: Matteo Croce <mcroce@redhat.com>
Tested-by: Matteo Croce <mcroce@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/sm_statefuns.c')
| -rw-r--r-- | net/sctp/sm_statefuns.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index c9ae3404b1bb..7dfc34b28f4f 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -6412,13 +6412,15 @@ static int sctp_eat_data(const struct sctp_association *asoc, * in sctp_ulpevent_make_rcvmsg will drop the frame if we grow our * memory usage too much */ - if (*sk->sk_prot_creator->memory_pressure) { + if (sk_under_memory_pressure(sk)) { if (sctp_tsnmap_has_gap(map) && (sctp_tsnmap_get_ctsn(map) + 1) == tsn) { pr_debug("%s: under pressure, reneging for tsn:%u\n", __func__, tsn); deliver = SCTP_CMD_RENEGE; - } + } else { + sk_mem_reclaim(sk); + } } /* |