On Thu, Mar 22, 2012 at 03:56:25PM +0200, Artem Bityutskiy wrote: > > But I wonder, since this is cross-FS story, where I need to first do > small VFS change (export the variable), then change all file-systems, > and then remove whole 's_dirt'/'write_supers()' stuff from VFS, how this > would be handled? What I'm thinking about doing is pulling the first five patches into my tree, which includes the VFS change to export the dirty_writeback_interval variable. Those patches should be very low risk, and acceptable at this point (although I'm still going to test them really hard). Assuming there are no objections with this, then you'd be able to send the rest of the patches for each file system to get rid of the super writeback thread separately; those really should go via each file system maintainer's separate trees, though. Ext2 and ext3 changes I'm willing to carry in the ext4 tree (although Jan does have his own ext3 tree). However, it would really be inappropriate for me to carry patches against jfs, xfs, or other non-ext 2/3/4 file systems in my tree. It will go much faster if you negotiate with each of the file system maintainers/development teams directly, instead of trying to use my tree and me as a middleman. The one thing that will require some coordination is the patch to completely remove the super writeback thread altogether, which obviously can't be applied until we know all of the file systems have removed their dependency on s_dirt. That's a pretty trivial patch that could go in late in the next merge window, or even in -rc2 (with prior warning given to Linus), once you're sure all of the file systems have gotten their s_dirt removal patches merged in. Does that seem reasonable to you? Best regards, - Ted -- 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
