On Tue, 2013-12-17 at 02:06 +-0100, David Sterba wrote: +AD4- On Mon, Dec 16, 2013 at 01:26:26PM -0500, Josef Bacik wrote: +AD4- +AD4- I need to create a fake tree to test qgroups and I don't want to have to setup a +AD4- +AD4- fake btree+AF8-inode. The fact is we only use the radix tree for the fs+AF8-info, so +AD4- +AD4- everybody else who allocates an extent+AF8-io+AF8-tree is just wasting the space anyway. +AD4- +AD4- This patch moves the radix tree and its lock into btrfs+AF8-fs+AF8-info so there is less +AD4- +AD4- stuff I have to fake to do qgroup sanity tests. Thanks, +AD4- +AD4- This would make the fs+AF8-info::buffer+AF8-lock a global hotspot if +AD4- alloc+AF8-extent+AF8-buffer and release+AF8-extent+AF8-buffer are called frequently. +AD4- But since the only place that was really using it was the metadata btree, the lock shouldn't be hotter than before right? -chris -- 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
