On 10/07/2013 11:01 AM, Wang Shilong wrote: > On 10/07/2013 10:47 AM, Anand Jain wrote: >> >> >>> If we want to speed up this progress, i think we can split it into two parts: >>> >>> 1. First to search inline extent_data >>> 2. Secondly search in extent tree to calculate (extent refs=1) >>> >>> This will avoid n*n rather than n+n which is better… >> (sorry for delay in reply, I was on vacation). >> >> Thanks for what might help. I was kind of expecting >> this when preliminary patch was sent before. Let me >> try what you suggest and send out v3. >> >> I was also thinking if this should be inside kernel >> facilitated by a new ioctl? so that we avoid number >> of search ioctl thats required. > Yeah, adding another ioctl maybe help. Anyway, there is another question. > Did we need to consider metadata into subvolume's sole size? > > Personaly, the answer is yes. Considering a subvolume is filled with a lot > of empty files, but we get subvolume's sole size *0*. yes. Will consider for an update patch later. Thanks, Anand -- 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
