posix: update sendmsg_idx only if zerocopy is enabled
Sendmsg_idx is used in _sock_check_zcopy to check whether idx in MSG_ERRQUEUE and req's idx match. There is no need to update it if zerocopy is disabled. Change-Id: I24bb367e0bff006782d9052470857f6e4db90681 Signed-off-by: Richael Zhuang <richael.zhuang@arm.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12104 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> Community-CI: Mellanox Build Bot Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
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@ -744,12 +744,14 @@ _sock_flush(struct spdk_sock *sock)
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return rc;
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}
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/* Handling overflow case, because we use psock->sendmsg_idx - 1 for the
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* req->internal.offset, so sendmsg_idx should not be zero */
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if (spdk_unlikely(psock->sendmsg_idx == UINT32_MAX)) {
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psock->sendmsg_idx = 1;
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} else {
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psock->sendmsg_idx++;
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if (psock->zcopy) {
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/* Handling overflow case, because we use psock->sendmsg_idx - 1 for the
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* req->internal.offset, so sendmsg_idx should not be zero */
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if (spdk_unlikely(psock->sendmsg_idx == UINT32_MAX)) {
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psock->sendmsg_idx = 1;
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} else {
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psock->sendmsg_idx++;
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}
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}
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/* Consume the requests that were actually written */
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