Messages in this thread | | | Date | Wed, 10 Jun 2009 22:00:49 -0400 (EDT) | From | Steven Rostedt <> | Subject | Re: [PATCH 1/3] ring-buffer: make the buffer a true circular link list |
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On Thu, 11 Jun 2009, Lai Jiangshan wrote:
> > - list_splice(&pages, head); > > + /* > > + * The ring buffer page list is a circular list that does not > > + * start and end with a list head. All page list items point to > > + * other pages. Remove one of the pages, init its list head, > > + * and use list splice to move the rest of the pages to it. > > + */ > > + bpage = list_entry(pages.next, struct buffer_page, list); > > + list_del_init(&bpage->list); > > + cpu_buffer->pages = &bpage->list; > > + > > + list_splice(&pages, cpu_buffer->pages); > > + > > Is it proper? > > cpu_buffer->pages = pages.next; > list_del(&pages); >
Not sure what you are asking here?
-- Steve
> > > > rb_check_pages(cpu_buffer); > >
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