On Wed, Mar 09, 2005 at 11:53:48AM -0800, Andrew Morton wrote: > Suparna Bhattacharya <[EMAIL PROTECTED]> wrote: > > If writes/truncates take care of zeroing out the rest of the sector > > on disk, might we still be OK without having to do the bounce buffer > > thing ? > > We can probably rely on the rest of the sector outside i_size being zeroed > anyway. Because if it contains non-zero gunk then the fs already has a > problem, and the user can get at that gunk with an expanding truncate and > mmap() anyway.
Actually, yeah, even today we rely on block_prepare_write and friends to handle that trail zeroing. That all happens after the sector has been read from disk. So this should be analogous. Joel -- Life's Little Instruction Book #396 "Never give anyone a fruitcake." http://www.jlbec.org/ [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/