linux-stable/net/xdp
Magnus Karlsson 76ec7fe2d8 Revert "xsk: Do not sleep in poll() when need_wakeup set"
commit 0706a78f31 upstream.

This reverts commit bd0687c18e.

This patch causes a Tx only workload to go to sleep even when it does
not have to, leading to misserable performance in skb mode. It fixed
one rare problem but created a much worse one, so this need to be
reverted while I try to craft a proper solution to the original
problem.

Fixes: bd0687c18e ("xsk: Do not sleep in poll() when need_wakeup set")
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211217145646.26449-1-magnus.karlsson@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-22 09:30:59 +01:00
..
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile xsk: Introduce AF_XDP buffer allocation API 2020-05-21 17:31:26 -07:00
xdp_umem.c xsk: Fix umem cleanup bug at socket destruct 2020-11-20 15:52:39 +01:00
xdp_umem.h xsk: Fix umem cleanup bug at socket destruct 2020-11-20 15:52:39 +01:00
xsk.c Revert "xsk: Do not sleep in poll() when need_wakeup set" 2021-12-22 09:30:59 +01:00
xsk.h xsk: Fix possible segfault at xskmap entry insertion 2020-09-02 16:52:59 +02:00
xsk_buff_pool.c xsk: Fix race in SKB mode transmit with shared cq 2021-01-17 14:17:05 +01:00
xsk_diag.c xsk: Fix possible segfault in xsk umem diagnostics 2020-09-02 16:49:40 +02:00
xsk_queue.c xsk: Remove MEM_TYPE_ZERO_COPY and corresponding code 2020-05-21 17:31:27 -07:00
xsk_queue.h xsk: Fix broken Tx ring validation 2021-07-14 16:56:23 +02:00
xskmap.c bpf: Allow for map-in-map with dynamic inner array map entries 2020-10-11 10:21:04 -07:00