Magnus Karlsson e6762c8bcf xsk: add missing smp_rmb() in xsk_mmap ... All the setup code in AF_XDP is protected by a mutex with the exception of the mmap code that cannot use it. To make sure that a process banging on the mmap call at the same time as another process is setting up the socket, smp_wmb() calls were added in the umem registration code and the queue creation code, so that the published structures that xsk_mmap needs would be consistent. However, the corresponding smp_rmb() calls were not added to the xsk_mmap code. This patch adds these calls. Fixes: 37b076933a ("xsk: add missing write- and data-dependency barrier") Fixes: c0c77d8fb7 ("xsk: add user memory registration support sockopt") Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2019-02-10 20:07:17 -08:00
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Kconfig	net: initial AF_XDP skeleton	2018-05-03 15:55:23 -07:00
Makefile	xsk: remove newline at end of file	2018-05-18 16:07:02 +02:00
xdp_umem.c	xsk: Check if a queue exists during umem setup	2019-01-15 20:51:57 +01:00
xdp_umem.h	xsk: fix bug when trying to use both copy and zero-copy on one queue id	2018-10-05 09:31:00 +02:00
xsk_queue.c	net: xsk: add a simple buffer reuse queue	2018-09-25 13:13:15 -07:00
xsk_queue.h	net: xsk: add a simple buffer reuse queue	2018-09-25 13:13:15 -07:00
xsk.c	xsk: add missing smp_rmb() in xsk_mmap	2019-02-10 20:07:17 -08:00