projects / lttng-modules.git / blame
| Commit | Line | Data |
|---|---|---|
| 3a523f5b MD |
1 | commit f0d902f497ee2fb747086322a31925c7fb351d7a |
| 2 | Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 3 | Date: Sat Sep 1 17:47:36 2012 -0700 | |
| 4 | ||
| 5 | mm: export generic_pipe_buf_*() to modules (backport) | |
| 6 | ||
| 7 | Backport for 2.6.32.x to 2.6.34.x of commits: | |
| 8 | ||
| 9 | commit 51921cb746f56983db5a373ca68deb2b0d3ddf01 | |
| 10 | Author: Miklos Szeredi <mszeredi@suse.cz> | |
| 11 | Date: Wed May 26 08:44:22 2010 +0200 | |
| 12 | ||
| 13 | mm: export generic_pipe_buf_*() to modules | |
| 14 | ||
| 15 | This is needed by fuse device code which wants to create pipe buffers. | |
| 16 | Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> | |
| 17 | ||
| 18 | Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 19 | ||
| 20 | diff --git a/fs/pipe.c b/fs/pipe.c | |
| 21 | index d0cc080..0eb6f53 100644 | |
| 22 | --- a/fs/pipe.c | |
| 23 | +++ b/fs/pipe.c | |
| 24 | @@ -222,6 +222,7 @@ void *generic_pipe_buf_map(struct pipe_inode_info *pipe, | |
| 25 | ||
| 26 | return kmap(buf->page); | |
| 27 | } | |
| 28 | +EXPORT_SYMBOL(generic_pipe_buf_map); | |
| 29 | ||
| 30 | /** | |
| 31 | * generic_pipe_buf_unmap - unmap a previously mapped pipe buffer | |
| 32 | @@ -241,6 +242,7 @@ void generic_pipe_buf_unmap(struct pipe_inode_info *pipe, | |
| 33 | } else | |
| 34 | kunmap(buf->page); | |
| 35 | } | |
| 36 | +EXPORT_SYMBOL(generic_pipe_buf_unmap); | |
| 37 | ||
| 38 | /** | |
| 39 | * generic_pipe_buf_steal - attempt to take ownership of a &pipe_buffer | |
| 40 | @@ -271,6 +273,7 @@ int generic_pipe_buf_steal(struct pipe_inode_info *pipe, | |
| 41 | ||
| 42 | return 1; | |
| 43 | } | |
| 44 | +EXPORT_SYMBOL(generic_pipe_buf_steal); | |
| 45 | ||
| 46 | /** | |
| 47 | * generic_pipe_buf_get - get a reference to a &struct pipe_buffer | |
| 48 | @@ -286,6 +289,7 @@ void generic_pipe_buf_get(struct pipe_inode_info *pipe, struct pipe_buffer *buf) | |
| 49 | { | |
| 50 | page_cache_get(buf->page); | |
| 51 | } | |
| 52 | +EXPORT_SYMBOL(generic_pipe_buf_get); | |
| 53 | ||
| 54 | /** | |
| 55 | * generic_pipe_buf_confirm - verify contents of the pipe buffer | |
| 56 | @@ -301,6 +305,7 @@ int generic_pipe_buf_confirm(struct pipe_inode_info *info, | |
| 57 | { | |
| 58 | return 0; | |
| 59 | } | |
| 60 | +EXPORT_SYMBOL(generic_pipe_buf_confirm); | |
| 61 | ||
| 62 | /** | |
| 63 | * generic_pipe_buf_release - put a reference to a &struct pipe_buffer | |
| 64 | @@ -315,6 +320,7 @@ void generic_pipe_buf_release(struct pipe_inode_info *pipe, | |
| 65 | { | |
| 66 | page_cache_release(buf->page); | |
| 67 | } | |
| 68 | +EXPORT_SYMBOL(generic_pipe_buf_release); | |
| 69 | ||
| 70 | static const struct pipe_buf_operations anon_pipe_buf_ops = { | |
| 71 | .can_merge = 1, |