Hello, On Sun, Sep 12, 2010 at 5:59 PM, Johannes Weiner <hannes@xxxxxxxxxxx> wrote: > On Sun, Sep 12, 2010 at 04:32:20PM +0530, Jaswinder Singh Rajput wrote: >> >> if (ret) is useless as it will be never NULL as in previous statement >> we are setting ret = prev for !ret > > If there is no match and no extent below the given file offset, `prev' > will be NULL as well, no? > > So the check is not useless, it prevents throwing out a cached success > in case of a lookup failure. > Got it !! Thanks, -- Jaswinder Singh. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
