ring-buffer: Use rb_page_size() instead of open coded head_page size

There's a helper function to get a ring buffer page size (the number of bytes of data recorded on the page), called rb_page_size(). Use that instead of open coding it.

Steven Rostedt (Red Hat) committed 12 years ago

Commit 10e83fd1 parent 0162d621 file · +1 −1Browse files

Unified · Split

kernel/trace/ring_buffer.c+1−1

@@ -3763,7 +3763,7 @@ rb_iter_peek(struct ring_buffer_iter iter, u64 ts) · 3762 unmodified lines
3763	if (rb_per_cpu_empty(cpu_buffer))	3763	if (rb_per_cpu_empty(cpu_buffer))
3764	return NULL;	3764	return NULL;
3765		3765
3766	if (iter->head >= local_read(&iter->head_page->page->commit)) {	3766	if (iter->head >= rb_page_size(iter->head_page)) {
3767	rb_inc_iter(iter);	3767	rb_inc_iter(iter);
3768	goto again;	3768	goto again;
3769	}	3769	}