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-rw-r--r--include/linux/sunrpc/svc.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index c3399cf64524..669c944eaf7f 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -152,6 +152,10 @@ extern u32 svc_max_payload(const struct svc_rqst *rqstp);
* still in transport use, and set rq_pages_nfree to the count.
* svc_alloc_arg() refills only that many rq_pages entries.
*
+ * For rq_respages, svc_rqst_release_pages() NULLs entries in
+ * [rq_respages, rq_next_page) after each RPC. svc_alloc_arg()
+ * refills only that range.
+ *
* xdr_buf holds responses; the structure fits NFS read responses
* (header, data pages, optional tail) and enables sharing of
* client-side routines.