On Mon, 30 Jul 2007, Jan Blunck wrote: > Introduce white-out support to tmpfs. > > Signed-off-by: Jan Blunck <[EMAIL PROTECTED]> > --- > include/linux/shmem_fs.h | 1 > mm/shmem.c | 54 > +++++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 55 insertions(+)
I see there's debate about whether this (and its fellows) give the right semantic to whiteouts; and I've not begun to think about that. But as a patch to tmpfs for what you're trying to do, it looks just about fine. I say "just about" because the reference counting looks right, but I wouldn't dare say that it _is_ right without testing. And I'd probably want to add a minor adjustment, so that a mount with nr_inodes=1000 could still support exactly 1000 inodes, despite your allocating one for the whiteout (usually never used) at mount time. But that can follow along later, no problem. Hugh - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
