On Fri, Jun 04, 2010 at 09:55:25AM +1000, Dave Chinner wrote: > Add a trace event to the ->writepage loop in write_cache_pages to give > visibility into how the ->writepage call is changing variables within the > writeback control structure. Of most interest is how wbc->nr_to_write changes > from call to call, especially with filesystems that write multiple pages > in ->writepage. Looks good, it might be worth to add another tracepoint for ->writepage from reclaim context so that we can start investigating the cases where that happens far too often. Reviewed-by: Christoph Hellwig <hch@xxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
