On 02/13/2012 03:34 PM, Chester wrote: > On Mon, Feb 13, 2012 at 1:17 AM, Ralf-Peter Rohbeck <rohb...@yahoo.com> wrote: >> Hello, >> is it possible to set nodatacow on a per-file basis? I couldn't find >> anything. >> If not, wouldn't that be a great feature to get around the performance >> issues with VM and database storage? Of course cloning should still cause >> COW. > > IIRC this is already a feature in btrfs. I didn't catch the whole > talk, but Chris mentioned something like this at Scale 10x. I also > remember seeing a patch for it a while back (I think it was from liu > bo) that does this. >
You're right, and I've made the prog patches which is against linux-ulit(chattr/lsattr): http://www.spinics.net/lists/linux-btrfs/msg09604.html http://www.spinics.net/lists/linux-btrfs/msg09605.html but they are not merged yet. thanks, liubo >> Thanks, >> Ralf-Peter >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in >> the body of a message to majord...@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
