Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 51921cb7 authored by Miklos Szeredi's avatar Miklos Szeredi
Browse files

mm: export generic_pipe_buf_*() to modules 



This is needed by fuse device code which wants to create pipe buffers.

Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
parent c3021629

fs/pipe.c

+6 −0
Original line number Diff line number Diff line
@@ -230,6 +230,7 @@ void *generic_pipe_buf_map(struct pipe_inode_info *pipe, 


	return kmap(buf->page);

}

EXPORT_SYMBOL(generic_pipe_buf_map);



/**

 * generic_pipe_buf_unmap - unmap a previously mapped pipe buffer
@@ -249,6 +250,7 @@ void generic_pipe_buf_unmap(struct pipe_inode_info *pipe, 
	} else

		kunmap(buf->page);

}

EXPORT_SYMBOL(generic_pipe_buf_unmap);



/**

 * 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, 


	return 1;

}

EXPORT_SYMBOL(generic_pipe_buf_steal);



/**

 * 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) 
{

	page_cache_get(buf->page);

}

EXPORT_SYMBOL(generic_pipe_buf_get);



/**

 * generic_pipe_buf_confirm - verify contents of the pipe buffer
@@ -309,6 +313,7 @@ int generic_pipe_buf_confirm(struct pipe_inode_info *info, 
{

	return 0;

}

EXPORT_SYMBOL(generic_pipe_buf_confirm);



/**

 * 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, 
{

	page_cache_release(buf->page);

}

EXPORT_SYMBOL(generic_pipe_buf_release);



static const struct pipe_buf_operations anon_pipe_buf_ops = {

	.can_merge = 1,