diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2022-06-30 15:17:56 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-17 14:42:34 +0200 |
| commit | 022b2d2c4ffa073acce031b9d5dcb5904e988948 (patch) | |
| tree | a7d57fa761fd5e537d4b609c2704cd0873d1742d | |
| parent | af504739ab57a19330d85213dd1770d703f6cc23 (diff) | |
mptcp: refine memory scheduling
commit 69d93daec026cdda98e29e8edb12534bfa5b1a9b upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 07b5a2044cab..9c25e6a9a279 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 << SK_MEM_QUANTUM_SHIFT; msk->rmem_fwd_alloc += amount; |