On Wednesday 13 February 2008 20:32, Andrew Morton wrote: > On Wed, 13 Feb 2008 20:24:03 +1100 Nick Piggin <[EMAIL PROTECTED]> wrote: > > BTW is it really true that the buffer can never be locked by > > anything else at this point? > > It has been for the past five or six years. With the page locked, nobody > else can get at that page.
Hmm OK. > > What about fsync_buffers_list? > > They're metadata buffers, not regular file data. Things might get ugly if > IO to /dev/sda went via that path, but it doesn't. Yeah right... so the BUG_ON is basically because you want to avoid the overhead of locking the buffer (which would presumably allow it to work in situations where someone else might lock the buffer without locking the page?). OK, makes sense. -- 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/
