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| author | Paolo Abeni <pabeni@redhat.com> | 2022-07-01 01:17:56 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-07-01 15:24:59 +0300 |
| commit | 69d93daec026cdda98e29e8edb12534bfa5b1a9b (patch) | |
| tree | dad36e35e0e9d2e24fff0311621b0ffbed617539 | |
| parent | d24141fe7b48d3572afb673ae350cf0e88caba6c (diff) | |
| download | linux-69d93daec026cdda98e29e8edb12534bfa5b1a9b.tar.xz | |
mptcp: refine memory scheduling
Similar to commit 7c80b038d23e ("net: fix sk_wmem_schedule() and
sk_rmem_schedule() errors"), let the MPTCP receive path schedule
exactly the required amount of memory.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/mptcp/protocol.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index b4b4ca897e14..d77ca57f5e6e 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -323,9 +323,10 @@ static bool mptcp_rmem_schedule(struct sock *sk, struct sock *ssk, int size) struct mptcp_sock *msk = mptcp_sk(sk); int amt, amount; - if (size < msk->rmem_fwd_alloc) + if (size <= msk->rmem_fwd_alloc) return true; + size -= msk->rmem_fwd_alloc; amt = sk_mem_pages(size); amount = amt << PAGE_SHIFT; if (!__sk_mem_raise_allocated(sk, size, amt, SK_MEM_RECV)) |