[v6,2/3] nvme-tcp: use sendpages_ok() instead of sendpage_ok()

Commit Message

Ofir Gal July 23, 2024, 6:56 a.m. UTC

Currently nvme_tcp_try_send_data() use sendpage_ok() in order to disable
MSG_SPLICE_PAGES, it check the first page of the iterator, the iterator
may represent contiguous pages.

MSG_SPLICE_PAGES enables skb_splice_from_iter() which checks all the
pages it sends with sendpage_ok().

When nvme_tcp_try_send_data() sends an iterator that the first page is
sendable, but one of the other pages isn't skb_splice_from_iter() warns
and aborts the data transfer.

Using the new helper sendpages_ok() in order to disable MSG_SPLICE_PAGES
solves the issue.

Reviewed-by: Christoph Hellwig <[e-mail]>
Reviewed-by: Hannes Reinecke <[e-mail]>
Reviewed-by: Sagi Grimberg <[e-mail]>
Signed-off-by: Ofir Gal <[e-mail]>
---
 drivers/nvme/host/tcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index a2a47d3ab99f..9ea6be0b0392 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -1051,7 +1051,7 @@  static int nvme_tcp_try_send_data(struct nvme_tcp_request *req)
 		else
 			msg.msg_flags |= MSG_MORE;
 
-		if (!sendpage_ok(page))
+		if (!sendpages_ok(page, len, offset))
 			msg.msg_flags &= ~MSG_SPLICE_PAGES;
 
 		bvec_set_page(&bvec, page, len, offset);