Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

[sfrench/cifs-2.6.git] / fs / splice.c

diff --git a/fs/splice.c b/fs/splice.c
index 9b559ee711a8e59f8e12fb0029b4d5a0356b7df4..0670c915cd35c5e8b653494d4d5b1efe76867e2e 100644 (file)
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1669,6 +1669,13 @@ static int link_pipe(struct pipe_inode_info *ipipe,
                i++;
        } while (len);
 
+       /*
+        * return EAGAIN if we have the potential of some data in the
+        * future, otherwise just return 0
+        */
+       if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK))
+               ret = -EAGAIN;
+
        inode_double_unlock(ipipe->inode, opipe->inode);
 
        /*
@@ -1709,11 +1716,8 @@ static long do_tee(struct file *in, struct file *out, size_t len,
                ret = link_ipipe_prep(ipipe, flags);
                if (!ret) {
                        ret = link_opipe_prep(opipe, flags);
-                       if (!ret) {
+                       if (!ret)
                                ret = link_pipe(ipipe, opipe, len, flags);
-                               if (!ret && (flags & SPLICE_F_NONBLOCK))
-                                       ret = -EAGAIN;
-                       }
                }
        }