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authorMiklos Szeredi <mszeredi@suse.cz>2010-05-26 02:44:22 -0400
committerMiklos Szeredi <mszeredi@suse.cz>2010-05-26 02:44:22 -0400
commit51921cb746f56983db5a373ca68deb2b0d3ddf01 (patch)
tree7ccd1100f18d9a17fd3feafc6346d5e5c58203b9
parentc3021629a0d820247ee12b6c5192a1d5380e21c6 (diff)
mm: export generic_pipe_buf_*() to modules
This is needed by fuse device code which wants to create pipe buffers. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
-rw-r--r--fs/pipe.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/pipe.c b/fs/pipe.c
index d79872eba09a..8912fa8f1666 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -230,6 +230,7 @@ void *generic_pipe_buf_map(struct pipe_inode_info *pipe,
230 230
231 return kmap(buf->page); 231 return kmap(buf->page);
232} 232}
233EXPORT_SYMBOL(generic_pipe_buf_map);
233 234
234/** 235/**
235 * generic_pipe_buf_unmap - unmap a previously mapped pipe buffer 236 * generic_pipe_buf_unmap - unmap a previously mapped pipe buffer
@@ -249,6 +250,7 @@ void generic_pipe_buf_unmap(struct pipe_inode_info *pipe,
249 } else 250 } else
250 kunmap(buf->page); 251 kunmap(buf->page);
251} 252}
253EXPORT_SYMBOL(generic_pipe_buf_unmap);
252 254
253/** 255/**
254 * generic_pipe_buf_steal - attempt to take ownership of a &pipe_buffer 256 * generic_pipe_buf_steal - attempt to take ownership of a &pipe_buffer
@@ -279,6 +281,7 @@ int generic_pipe_buf_steal(struct pipe_inode_info *pipe,
279 281
280 return 1; 282 return 1;
281} 283}
284EXPORT_SYMBOL(generic_pipe_buf_steal);
282 285
283/** 286/**
284 * generic_pipe_buf_get - get a reference to a &struct pipe_buffer 287 * generic_pipe_buf_get - get a reference to a &struct pipe_buffer
@@ -294,6 +297,7 @@ void generic_pipe_buf_get(struct pipe_inode_info *pipe, struct pipe_buffer *buf)
294{ 297{
295 page_cache_get(buf->page); 298 page_cache_get(buf->page);
296} 299}
300EXPORT_SYMBOL(generic_pipe_buf_get);
297 301
298/** 302/**
299 * generic_pipe_buf_confirm - verify contents of the pipe buffer 303 * generic_pipe_buf_confirm - verify contents of the pipe buffer
@@ -309,6 +313,7 @@ int generic_pipe_buf_confirm(struct pipe_inode_info *info,
309{ 313{
310 return 0; 314 return 0;
311} 315}
316EXPORT_SYMBOL(generic_pipe_buf_confirm);
312 317
313/** 318/**
314 * generic_pipe_buf_release - put a reference to a &struct pipe_buffer 319 * generic_pipe_buf_release - put a reference to a &struct pipe_buffer
@@ -323,6 +328,7 @@ void generic_pipe_buf_release(struct pipe_inode_info *pipe,
323{ 328{
324 page_cache_release(buf->page); 329 page_cache_release(buf->page);
325} 330}
331EXPORT_SYMBOL(generic_pipe_buf_release);
326 332
327static const struct pipe_buf_operations anon_pipe_buf_ops = { 333static const struct pipe_buf_operations anon_pipe_buf_ops = {
328 .can_merge = 1, 334 .can_merge = 1,