mirror of
https://github.com/torvalds/linux.git
synced 2024-11-29 07:31:29 +00:00
6511882cdd
All the mptcp receive path is protected by the msk socket spinlock. As consequences, the tx path has to play a few tricks to allocate the forward memory without acquiring the spinlock multiple times, making the overall TX path quite complex. This patch tries to clean-up a bit the tx path, using completely separated fwd memory allocation, for the rx and the tx path. The forward memory allocated in the rx path is now accounted in msk->rmem_fwd_alloc and is (still) protected by the msk socket spinlock. To cope with the above we provide a few MPTCP-specific variants for the helpers to charge, uncharge, reclaim and free the forward memory in the receive path. msk->sk_forward_alloc now accounts only the forward memory for the tx path, we can use the plain core sock helper to manipulate it and drop quite a bit of complexity. On memory pressure, both rx and tx fwd memories are reclaimed. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|---|---|---|
| .. | ||
| crypto_test.c | ||
| crypto.c | ||
| ctrl.c | ||
| diag.c | ||
| Kconfig | ||
| Makefile | ||
| mib.c | ||
| mib.h | ||
| mptcp_diag.c | ||
| options.c | ||
| pm_netlink.c | ||
| pm.c | ||
| protocol.c | ||
| protocol.h | ||
| sockopt.c | ||
| subflow.c | ||
| syncookies.c | ||
| token_test.c | ||
| token.c | ||