mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-14 15:54:15 +08:00
c34787fcc9
There are two unnecessary READ_ONCE of descriptor data. These are not needed since the data is written by the producer before it signals that the data is available by incrementing the producer pointer. As the access to this producer pointer is serialized and the consumer always reads the descriptor after it has read and synchronized with the producer counter, the write of the descriptor will have fully completed and it does not matter if the consumer has any read tearing. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/1576759171-28550-11-git-send-email-magnus.karlsson@intel.com |
||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| xdp_umem.c | ||
| xdp_umem.h | ||
| xsk_diag.c | ||
| xsk_queue.c | ||
| xsk_queue.h | ||
| xsk.c | ||
| xsk.h | ||