xsk: avoid store-tearing when assigning queues

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Use WRITE_ONCE when doing the store of tx, rx, fq, and cq, to avoid
potential store-tearing. These members are read outside of the control
mutex in the mmap implementation.

Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Fixes: 37b076933a ("xsk: add missing write- and data-dependency barrier")
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

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Björn Töpel 2019-09-04 13:49:10 +02:00 • committed by Daniel Borkmann

parent 310f4204ee

commit 94a997637c

1 changed files with 1 additions and 1 deletions

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net/xdp/xsk.c

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