pipe: allow passing around of ops private pointer

relay needs this for proper consumption handling, and the network
receive support needs it as well to lookup the sk_buff on pipe
release.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

3 files changed, 3 insertions, 0 deletions

diff --git a/fs/splice.c b/fs/splice.c
index bea9f1581ca0..00850e56280d 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -185,6 +185,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
                         buf->page = spd->pages[page_nr];
                         buf->offset = spd->partial[page_nr].offset;
                         buf->len = spd->partial[page_nr].len;
+                        buf->private = spd->partial[page_nr].private;
                         buf->ops = spd->ops;
                         if (spd->flags & SPLICE_F_GIFT)
                                 buf->flags |= PIPE_BUF_FLAG_GIFT;
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index 7ba228d52f58..4409167b9eb2 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -14,6 +14,7 @@ struct pipe_buffer {
         unsigned int offset, len;
         const struct pipe_buf_operations *ops;
         unsigned int flags;
+        unsigned long private;
 };
 
 struct pipe_inode_info {
diff --git a/include/linux/splice.h b/include/linux/splice.h
index f8cc97f71cd0..33e447f98a54 100644
--- a/include/linux/splice.h
+++ b/include/linux/splice.h
@@ -41,6 +41,7 @@ struct splice_desc {
 struct partial_page {
         unsigned int offset;
         unsigned int len;
+        unsigned long private;
 };
 
 /*