Andreas Dilger wrote: > On Oct 01, 2007 15:10 -0700, Avantika Mathur wrote: >> Delayed Allocation: >> - There has been an lkml thread about these patches. >> - We have and approach that works for ext4, implemented at the vfs >> level, but unless we can prove it can work for other filesystems, it >> will not be accepted. >> - Christoph Hellwig has commented that these patches will not work for >> XFS. > > Hmm, but I thought that Christoph also agreed that it would be OK to > get the ext4 delalloc code merged separately, so long as it doesn't > need big/any changes to the VFS to implement it. It might be that the > ext4 and XFS code is different enough that they cannot share the > delayed allocation code. IIRC there is only one change to the VFS, a test for buffer_delay() in __block_write_full_page(). XFS is the only current caller of set_buffer_delay, and XFS does not even use the block_write_full_page path. The rest was a huge chunk dropped into mpage.c, but not interfering with anything else. So, I don't see any conflict. -Eric - 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
