nfsd4: cleanup: replace rq_resused count by rq_next_page pointer

[linux-imx.git] / fs / nfsd / vfs.c

diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index b31e46eeb02679ad6d915221d41c37e00bd073fe..f0a6d88d7fff669093d1e27d6ae56d6500c2e8b8 100644 (file)
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -886,7 +886,7 @@ nfsd_splice_actor(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
                  struct splice_desc *sd)
 {
        struct svc_rqst *rqstp = sd->u.data;
-       struct page **pp = rqstp->rq_respages + rqstp->rq_resused;
+       struct page **pp = rqstp->rq_next_page;
        struct page *page = buf->page;
        size_t size;
 
@@ -894,17 +894,15 @@ nfsd_splice_actor(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
 
        if (rqstp->rq_res.page_len == 0) {
                get_page(page);
-               put_page(*pp);
-               *pp = page;
-               rqstp->rq_resused++;
+               put_page(*rqstp->rq_next_page);
+               *(rqstp->rq_next_page++) = page;
                rqstp->rq_res.page_base = buf->offset;
                rqstp->rq_res.page_len = size;
        } else if (page != pp[-1]) {
                get_page(page);
-               if (*pp)
-                       put_page(*pp);
-               *pp = page;
-               rqstp->rq_resused++;
+               if (*rqstp->rq_next_page)
+                       put_page(*rqstp->rq_next_page);
+               *(rqstp->rq_next_page++) = page;
                rqstp->rq_res.page_len += size;
        } else
                rqstp->rq_res.page_len += size;
@@ -936,8 +934,8 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
                        .u.data         = rqstp,
                };
 
-               WARN_ON_ONCE(rqstp->rq_resused != 1);
-               rqstp->rq_resused = 1;
+               WARN_ON_ONCE(rqstp->rq_next_page != rqstp->rq_respages + 1);
+               rqstp->rq_next_page = rqstp->rq_respages + 1;
                host_err = splice_direct_to_actor(file, &sd, nfsd_direct_splice_actor);
        } else {
                oldfs = get_fs();