[RFC patch 14/41] Splice and pipe : export pipe buf operations for GPL modules

[Mathieu Desnoyers]

LTTng splice transport use the generic pipe and splice operations from a GPL
module.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxx>
CC: Jens Axboe <axboe@xxxxxxxxx>
CC: Linus Torvalds <torvalds@xxxxxxxx>
CC: Ingo Molnar <mingo@xxxxxxx>
---
 fs/pipe.c   |    5 +++++
 fs/splice.c |    1 +
 2 files changed, 6 insertions(+)

Index: linux-2.6-lttng/fs/pipe.c
===================================================================
--- linux-2.6-lttng.orig/fs/pipe.c	2009-02-06 14:45:33.000000000 -0500
+++ linux-2.6-lttng/fs/pipe.c	2009-02-06 14:57:50.000000000 -0500
@@ -188,6 +188,7 @@ void *generic_pipe_buf_map(struct pipe_i
 
 	return kmap(buf->page);
 }
+EXPORT_SYMBOL_GPL(generic_pipe_buf_map);
 
 /**
  * generic_pipe_buf_unmap - unmap a previously mapped pipe buffer
@@ -207,6 +208,7 @@ void generic_pipe_buf_unmap(struct pipe_
 	} else
 		kunmap(buf->page);
 }
+EXPORT_SYMBOL_GPL(generic_pipe_buf_unmap);
 
 /**
  * generic_pipe_buf_steal - attempt to take ownership of a &pipe_buffer
@@ -237,6 +239,7 @@ int generic_pipe_buf_steal(struct pipe_i
 
 	return 1;
 }
+EXPORT_SYMBOL_GPL(generic_pipe_buf_steal);
 
 /**
  * generic_pipe_buf_get - get a reference to a &struct pipe_buffer
@@ -252,6 +255,7 @@ void generic_pipe_buf_get(struct pipe_in
 {
 	page_cache_get(buf->page);
 }
+EXPORT_SYMBOL_GPL(generic_pipe_buf_get);
 
 /**
  * generic_pipe_buf_confirm - verify contents of the pipe buffer
@@ -267,6 +271,7 @@ int generic_pipe_buf_confirm(struct pipe
 {
 	return 0;
 }
+EXPORT_SYMBOL_GPL(generic_pipe_buf_confirm);
 
 static const struct pipe_buf_operations anon_pipe_buf_ops = {
 	.can_merge = 1,
Index: linux-2.6-lttng/fs/splice.c
===================================================================
--- linux-2.6-lttng.orig/fs/splice.c	2009-02-06 14:45:33.000000000 -0500
+++ linux-2.6-lttng/fs/splice.c	2009-02-06 14:57:50.000000000 -0500
@@ -260,6 +260,7 @@ ssize_t splice_to_pipe(struct pipe_inode
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(splice_to_pipe);
 
 static void spd_release_page(struct splice_pipe_desc *spd, unsigned int i)
 {

-- 
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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