diff options
| author | David Howells <dhowells@redhat.com> | 2023-06-09 11:02:18 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-06-12 21:13:23 -0700 |
| commit | 5df5dd03a8f71ca9640f208d8f523856e1069ee7 (patch) | |
| tree | 3de9e5d444a1ace19340a8a9c02106c65be43453 /include/linux/sunrpc/svc.h | |
| parent | 345ee3e8126aa042e8b4c61ed9eca42e9334b09e (diff) | |
sunrpc: Use sendmsg(MSG_SPLICE_PAGES) rather then sendpage
When transmitting data, call down into TCP using sendmsg with
MSG_SPLICE_PAGES to indicate that content should be spliced rather than
performing sendpage calls to transmit header, data pages and trailer.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
cc: Trond Myklebust <trond.myklebust@hammerspace.com>
cc: Anna Schumaker <anna@kernel.org>
cc: Jeff Layton <jlayton@kernel.org>
cc: Jens Axboe <axboe@kernel.dk>
cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/sunrpc/svc.h')
| -rw-r--r-- | include/linux/sunrpc/svc.h | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index 762d7231e574..f66ec8fdb331 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -161,16 +161,15 @@ static inline bool svc_put_not_last(struct svc_serv *serv) extern u32 svc_max_payload(const struct svc_rqst *rqstp); /* - * RPC Requsts and replies are stored in one or more pages. + * RPC Requests and replies are stored in one or more pages. * We maintain an array of pages for each server thread. * Requests are copied into these pages as they arrive. Remaining * pages are available to write the reply into. * - * Pages are sent using ->sendpage so each server thread needs to - * allocate more to replace those used in sending. To help keep track - * of these pages we have a receive list where all pages initialy live, - * and a send list where pages are moved to when there are to be part - * of a reply. + * Pages are sent using ->sendmsg with MSG_SPLICE_PAGES so each server thread + * needs to allocate more to replace those used in sending. To help keep track + * of these pages we have a receive list where all pages initialy live, and a + * send list where pages are moved to when there are to be part of a reply. * * We use xdr_buf for holding responses as it fits well with NFS * read responses (that have a header, and some data pages, and possibly |