On Mon, Mar 14, 2011 at 02:20:32PM -0700, Andrew Morton wrote: > > I'm a bit nervous about exposing WB_SYNC_NONE to userspace, because > > its semantics are *definitely* hard to describe. For example, at the > > moment if you do a WB_SYNC_NONE writeback, the writeback code will > > clamp the amount of data written back for each inode to > > MAX_WRITEBACK_PAGES (1024) pages. > > Wha? It does? When did that get broken? Oops, sorry, I misread the code in wb_writeback(). My bad! I misinterpreted what write_chunk does in that function. MAX_WRITEBACK_PAGES now really is the minimum amount of pages that wb_writeback() will request the file system to write back. I'm not sure why we bother with write_chunk any more, but it shouldn't be doing any harm any more. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
