On Fri, May 02, 2008 at 10:49:01AM -0700, Andreas Dilger wrote: > On Apr 29, 2008 16:27 +0530, Aneesh Kumar K.V wrote: > > I haven't yet tested this. Let me know what you think. > > > > -aneesh > > > > This adds a per inode meta-block prealloc space from which > > meta-data block requests are served. This help in making > > sure meta-data block are closer. This is needed to speedup > > unlink of the file. Any new prealloc space is allocated near > > the goal block specified. The goal block is the last block > > allocated for the file. So we don't keep the data-block and > > meta-data block far apart. > > Does this code use the mballoc "group allocator" mechanism that it > already uses for small files? It would be convenient to re-use > this code by creating a "metadata allocation group" instead of creating > another mechanism to aggregate small IO allocations. > That is mostly what it does. Except that the allocation space is hanging from the inode rather than per-cpu. -aneesh -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
