diff options
Diffstat (limited to 'fs/pipe.c')
| -rw-r--r-- | fs/pipe.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/pipe.c b/fs/pipe.c index 7fefb10db8d..5a369273c51 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -127,8 +127,15 @@ static void anon_pipe_buf_unmap(struct pipe_inode_info *pipe, static int anon_pipe_buf_steal(struct pipe_inode_info *pipe, struct pipe_buffer *buf) { - buf->flags |= PIPE_BUF_FLAG_STOLEN; - return 0; + struct page *page = buf->page; + + if (page_count(page) == 1) { + buf->flags |= PIPE_BUF_FLAG_STOLEN; + lock_page(page); + return 0; + } + + return 1; } static void anon_pipe_buf_get(struct pipe_inode_info *info, |