Magnus Karlsson 192fe57395 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 09:29:40 +01:00
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Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
xdp_umem.c	xsk: Add overflow check for u64 division, stored into u32	2020-06-03 08:21:36 +02:00
xdp_umem.h	xdp: fix hang while unregistering device bound to xdp socket	2019-07-03 15:10:55 +02:00
xsk.c	Revert "xsk: Do not sleep in poll() when need_wakeup set"	2021-12-22 09:29:40 +01:00
xsk.h	xsk: add support for need_wakeup flag in AF_XDP rings	2019-08-17 23:07:32 +02:00
xsk_diag.c	xsk: lock the control mutex in sock_diag interface	2019-09-05 14:11:52 +02:00
xsk_queue.c	net: xsk: add a simple buffer reuse queue	2018-09-25 13:13:15 -07:00
xsk_queue.h	xsk: Simplify detection of empty and full rings	2021-05-22 11:38:27 +02:00