diff options
Diffstat (limited to 'io_uring/notif.c')
| -rw-r--r-- | io_uring/notif.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/io_uring/notif.c b/io_uring/notif.c index e37c6569d82e..4bfef10161fa 100644 --- a/io_uring/notif.c +++ b/io_uring/notif.c @@ -18,6 +18,10 @@ static void __io_notif_complete_tw(struct io_kiocb *notif, bool *locked) __io_unaccount_mem(ctx->user, nd->account_pages); nd->account_pages = 0; } + + if (nd->zc_report && (nd->zc_copied || !nd->zc_used)) + notif->cqe.res |= IORING_NOTIF_USAGE_ZC_COPIED; + io_req_task_complete(notif, locked); } @@ -28,6 +32,13 @@ static void io_uring_tx_zerocopy_callback(struct sk_buff *skb, struct io_notif_data *nd = container_of(uarg, struct io_notif_data, uarg); struct io_kiocb *notif = cmd_to_io_kiocb(nd); + if (nd->zc_report) { + if (success && !nd->zc_used && skb) + WRITE_ONCE(nd->zc_used, true); + else if (!success && !nd->zc_copied) + WRITE_ONCE(nd->zc_copied, true); + } + if (refcount_dec_and_test(&uarg->refcnt)) { notif->io_task_work.func = __io_notif_complete_tw; io_req_task_work_add(notif); @@ -55,6 +66,7 @@ struct io_kiocb *io_alloc_notif(struct io_ring_ctx *ctx) nd->account_pages = 0; nd->uarg.flags = SKBFL_ZEROCOPY_FRAG | SKBFL_DONT_ORPHAN; nd->uarg.callback = io_uring_tx_zerocopy_callback; + nd->zc_report = nd->zc_used = nd->zc_copied = false; refcount_set(&nd->uarg.refcnt, 1); return notif; } |