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sunrpc: set the bv_offset of first bvec in svc_tcp_sendmsg 

svc_tcp_sendmsg used to factor in the xdr->page_base when sending pages,
but commit 5df5dd03a8 ("sunrpc: Use sendmsg(MSG_SPLICE_PAGES) rather
then sendpage") dropped that part of the handling. Fix it by setting
the bv_offset of the first bvec.

Fixes: 5df5dd03a8 ("sunrpc: Use sendmsg(MSG_SPLICE_PAGES) rather then sendpage")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Jeff Layton 2023-08-14 13:36:54 -04:00 committed by Chuck Lever
parent 2ccdd1b13c
commit c96e2a695e
1 changed files with 3 additions and 0 deletions
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3
net/sunrpc/svcsock.c
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@ -1244,6 +1244,9 @@ static int svc_tcp_sendmsg(struct socket *sock, struct xdr_buf *xdr,
if (ret != head->iov_len)
goto out;
if (xdr_buf_pagecount(xdr))
xdr->bvec[0].bv_offset = offset_in_page(xdr->page_base);
msg.msg_flags = MSG_SPLICE_PAGES;
iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, xdr->bvec,
xdr_buf_pagecount(xdr), xdr->page_len);